| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

• Paap, K.M. - Wetlands Research, Inc. - Horizon Formation and Carbon Sequestration in Developing Soils of Created Wetlands.

• Pablico, P. - International Rice Research Institute - Temporal Origin of Nitrogen in Rice Grain Determined by a Point-Placement Technique.

• Pace, M.N. - ORNL - The Effects of Unstable Flow on Uranium Transport In Variably Saturated Undisturbed Cores.

• Pace*, M.N. - ORNL - Strontium and Uranium Transport through Variably Saturated Undisturbed Cores from the Hanford Formation, Richland, WA.

• Pachepsky, Y.A. - USDA-ARS, Beltsville, MD - Effect of Soil Aggregate Size Distribution on Water Retention.

• Pachepsky, Y.A. - USDA-ARS - Use of Soil Survey Information for Determining Soil Hydraulic Properties.

• Pachepsky, Y.A. - USDA-ARS, Beltsville, MD - An Automated System for the Quasi-Continuous Determination of the Particle-Size Distribution.

• Pachepsky, Y. - USDA-ARS, Beltsville, MD - Modeling coliform bacteria and bromide transport in large in-situ colums of a fractured soil.

• Pachepsky, Y. - USDA-ARS, Beltsville, MD - 2DSPUD, a Two-dimensional Mechanistic Model of Potato Growth and Development.

• Pachepsky, Y. - USDA-ARS, Beltsville, MD - The Additivity Model to Estimate Water Retention of Mineral Soils.

• Pachepsky, Y. - USDA-ARS, Beltsville, MD - Linking Within-Field Crop Response With Soil Characteristics.

• Pachepsky, Y. - USDA-ARS, Beltsville, MD - Field-scale Monitoring and Simulation of the Overland Transport of Bromide and Pathogens.

• Pachepsky, Y. - USDA-ARS Beltsville, MD - Comparing Small Scale Spatial Relationships of Surface Soil Water.

• Padre, A.T. - International Rice Research Institute - Efficacy of Three 15N Labelling Techniques for Estimating Below-Ground N in Sesbania rostrata.

• Padre, A.T. - - Yield and Soil Fertility Trends in a 15-Year Rice-Wheat Experiment in India.

• Padre, A.T. - International Rice Research Institute - Integrated Crop Management to Enhance Productivity of Rice-Wheat System in Nepal.

• Paek, N.C. - School of Plant Science, Seoul National University - Isolation, characterization, and map-based cloning of staygreen gene in rice.

• Paetzold, R.F. - Natural Resources Conservation Service - Effects of Hydrocarbon Spills on the Physical, Chemical, and Microbial Properties of Soils around Scott Base, Antarctica.

• Paetzold, R. - USDA-NRCS, Lincoln, NE - Saturated Hydraulic Conductivity versus Soil Permeability Classes: Facts, Fiction, and the Future.

• Page, A.L. - University of California, Riverside - Soils and Environmental Quality: Tracing Trace Elements.

• Page*, S.J. - USDA-NRCS, Lowville, NY - Soils, Landscapes, and Interpretations: Progressive Soil Survey on Fort Drum, NY.

• Page-Dumroese, D. - USDA Forest Service - Below ground carbon and nutrient distribution in unmanaged subalpine conifer forests in the Central European Alps.

• Pala, M. - ICARDA, Aleppo - Developments in Tillage and Cropping Systems in Central Asia.

• Pala*, M. - ICARDA - Agronomic Practices for Improving Water-Use Efficiency in Drought-Prone Mediterranean-Type Agriculture.

• Pala*, M. - ICARDA, Aleppo - Conservation Tillage: New Departure from Traditional Mediterranean Agriculture.

• Palazzo, A.J. - US Army Corps of Engineers - Establishing Native Plants on Western Military Lands.

• Palazzo, A.J. - USACE-ERDC - Phyto-Engineering to Solve Environmental Problems.

• Palazzo, A.J. - USACE-ERDC - Phyto-Engineering of Arsenic Contaminated Soil.

• Palazzo, A.J. - USA COE, Hamover, NH - Stimulation of plant growth by humic substances.

• Palazzo, A.J. - USACE-ERDC - Phyto-Engineering of Petroleum Hydrocarbon Contaminated Dredged Material.

• Pale, S. - University of Nebraska - Planting Time for Pearl Millet in Nebraska.

• Pale, S. - University of Nebraska - Pearl Millet Row Spacing Recommendations for Nebraska.

• Palecki, M.A. - Illinois State Water Survey - Temporal Variability of R-factor Values.

• Paliyath, G. - University of Guelph - Phosphorus Fertilization and Biosynthesis of Functional Food Ingredients.

• Palmer, C.D. - INEEL, Idaho Falls, ID - Growth Stage Dependent Cesium Uptake by Crested Wheat Grass in a Sagebrush-Steppe Ecosystem.

• Palmer, C.J. - University of Nevada Las Vegas - Development of a National Program for Monitoring Soil Quality as an Indicator of Forest Health in the USFS Forest Inventory and Analysis (FIA) Program.

• Palmer, C. - INEEL - Water and Nutrient Stresses Increase Root Exudation.

• Palmer, J.D. - Indiana University - Intergenomic Gene Transfer in Plants: Genes Jumping between Three Genomes and Compartments.

• Palmer, R.G. - USDA-ARS-CICGR - Variation of Nineteen Isozyme Loci in the USDA Soybean Germplasm Collections from China.

• Palmer, R.G. - USAD-ARS-CICGR - Genetic Mapping of Four Female Partial-Sterile Mutants in Soybean.

• Palmer, R.G. - USDA-ARS-CICGR - Floral Nectary Development and Structure in Glycine max L. Merr.

• Palumbo, R.E. - Dept. of Horticulture, Virginia Tech - Tracing Transgenic Seeds Using Fluorescent Marker Proteins and Laser Seed Sorting Technology.

• Pan, D. - Univ. of Florida - Evaluating the CROPGRO-Soybean Model for Predictions of Phenology, Growth, Photosynthesis, and Yield by Comparison to Elevated Temperature and CO2 Experiments.

• Pan, W.L. - Washington State University - Wheat and Bluegrass Straw Utilization for Papermaking and Fertilizer Production.

• Pan, W.L. - Washington State University - Nutrient Management of Semi-Arid, Short Season Corn in Direct-Seed Cropping Systems.

• Pandravada*, A. - Dept. of Agronomy, Kansas State University - Characterizing Early Season Vigor and Low Temperature Tolerance in Sorghum bicolor.

• Panicker*, G.K. - Alcorn State University, Alcorn State, MS - Animal and Forest Wastes on Biomass Development, and Water and Fruit Quality of Muscadine.

• Papiernik, S.K. - USDA-ARS, Salinity Laboratory - Transport of Reacting Chemicals.

• Papiernik*, S.K. - USDA-ARS, Riverside, CA - Atmospheric Emissions of Fumigants Applied via Drip Irrigation.

• Papiernik*, S.K. - USDA-ARS, Riverside, CA - Organic Matter Effects on Phase Partition of 1,3-Dichloropropene in Soil.

• Paramasivam, S. - Savannah State University - A Comparison of Bromide and Nitrate Transport in Soils.

• Paramasivam*, S. - Savannah State University - Chemical composition of fresh water samples from various creeks from lower and middle Savannah River watershed.

• Pardey, P. - UMN Twin Cities - Accessing other people's technology: Do developing countries need it? How to obtain it?

• Pare, D. - Laurentian Forestry Centre, Ste-Foy QC - What is litter quality and how does it influence decomposition.

• Parham, J.A. - Oklahoma State University - Phosphorus Mobility, Enzyme Activity and Microbial Community in Manure-treated Soil.

• Park, C.J. - Kangwon Nat'l Univ., Chunchon, Korea - Reclamation and Revegetation of the Abandoned Coal Mine Land Using Soda Ash Production By-product.

• Park, E.J. - Michigan State University - Oxygen Respiration and Hydraulic Properties by Individual Soil Aggregates from Tilled and No-Tilled Agroecosystems.

• Park, E.J. - Michigan State University - Tensile Strength Gradients Within Soil Aggregates from Contrasting Ecosystems.

• Park, E.J. - Michigan State University, East Lansing, MI - Identification of Biogeochemical Gradients within Soil Aggregates.

• Park, I.H. - Sunchon National University, Sunchon, Korea - Soil Nitrogen Characteristics of Native Oak Stands in Korea.

• Park, J.H. - Michigan State University - Characterization of atrazine-degrading bacteria capable of accessing soil-sorbed atrazine.

• Park, J.K. - University of Wisconsin-Madison - Crumb Rubber Sublayer Reduces Nutrient Leaching in Sand Putting Greens.

• Park, J.S. - School of Plant Science, Seoul National University - Isolation, characterization, and map-based cloning of staygreen gene in rice.

• Park, K.H. - National Honam Agricultural Experiment Station,RDA, Korea - Genetic Analysis of the Different Growth Types of Sesame(Sesamum indicum L.)

• Park, K.H. - National Honam Agricultural Experiment Station, RDA - Determination by the Reverse-Phase High Performance Liquid chromatography and Extraction of Resveratrol in Peanut(Arachis hypogaea L.)

• PARK, K.H. - NHAES - Development of Regeneration and Gene Transformation System for Sesamum indicum L.?

• PARK, M.E. - Faculty of Biological Resources Sciences - Resveratrol Accumulation and Resveratrol Synthase Gene Expression in Response to Abiotic Stresses and Hormones in Peanut Plants.

• PARK, M.E. - Faculty of Biological Resources Sciences - Responses of glycolytic, fermentative and antioxidant enzymes to hypoxia in barley.

• PARK, M.R. - Faculty of Biological Resources Sciences - Resveratrol Accumulation and Resveratrol Synthase Gene Expression in Response to Abiotic Stresses and Hormones in Peanut Plants.

• Park, S.J. - Agriculture a Agri-Food Canada, Greenhouse a Proc, - Mechanical Damage of Seed and its Genetic control in Common Bean.

• Park, S.J. - Agriculture Canada, Harrow, Ontario - Development of High-Yielding Disease-Resistant Common Bean Germplasm Lines.

• Park, S.J. - Center for Development Research (ZEF) - Development of Groundwater Salinity in a Lower Amu-Darya Region, Khorezm, Uzbekistan.

• Park, S.O. - Texas A and M University - Screening Melon Germplasm for Tolerance to Cucurbit Yellowing Stunting Disorder Virus (CYSDV) Using RT-PCR.

• Park, S.O. - University of Nebraska - Mapping of the Ur-7 Gene for Specific Resistance to Rust in Common Bean.

• Park, S.O. - University of Nebraska - Mapping of the Ur-6 Gene Controlling Specific Rust Resistance in Common Bean.

• Park, S. - Dept.of Soil Science, Texas AM University, College Station, TX - Phytoremediation of land contaminated by recalcitrant contaminants using Eastern gamagrass and Annual ryegrass.

• Park*, C.J. - Kangwon Nat'l Univ., Chunchon, Korea - Influence of Agricultural Management on the Soil and Water Qualities in the Sloping Upland Areas.

• Park*, J. - University of Nebraska-Lincoln - Role(s) of didecyl surfactant in reduction of HMX-contaminated soil by Fe0.

• Park*, K.C. - University of Missouri, Columbia - Seasonal Changes in Enzymatic Activity in Soils Receiving Different Organic Amendments.

• Park*, K.H. - NHAES-RDA, Iksan, Korea - Cytogenetic studies on the Interspecific Hybrid in Genus Arachis hypogaea L.

• PARK., W.K. - NIAST, RDA, KOREA. - Distribution and Bioavailability of Heavy Metals in Soil-Plant System by Successive Application of Municipal Sewage Sludge and Pig Manure Compost in Korea.

• Parker, D.R. - University of California, Riverside, CA - Stable Isotope Investigation of Water Sources for Forest Vegetation on Thin Soils over Weathered Bedrock.

• Parker, E. - Michigan State University - The Impact of Management on the Macronutrient Levels of a Corn-Corn-Soybean-Wheat Rotation.

• Parker, G. - Michigan State University - The Impact of Management on the Macronutrient Levels of a Corn-Corn-Soybean-Wheat Rotation.

• Parker, M.A. - Alabama A and M University - Tillage and Poultry Litter Effects on Soil Carbon and Nitrogen in North Alabama.

• Parker, M. - The University of Georgia - Bermudagrass Response to N Over the Past 50 Years and N Recommendations Based on Hay Price and Production Cost.

• Parker*, R.G. - Dr. A.C. York (NCSU) - Weed Control in Roudup Ready Soybeans with Glyphosate Plus Manganese Mixtures.

• Parkin, G.W. - University of Guelph - Unsaturated Flow and Solute Transport in a Repacked, Cross-bedded Sand.

• Parkin, T.B. - USDA-ARS, Ames, IA - Impact of Sampling Frequency on Soil CO2 Flux Estimation.

• Parkinson, B. - USDA-NRCS, Ohio - Associations among Soil Properties and Site Variables of Alfisols in Ohio.

• Paroda, R. - ICARDA, Tashkent - Food Legumes in Central Asian Countries: Present Status and Future Possibilities for Improvement.

• Paroda*, R. - ICARDA, Tashkent - An Overview of Agriculture in Central Asia and the CGIAR Program for Sustainable Development.

• Parossien, M. - New Mexico State University - Accurate technologies for monitoring soil moisture in turf.

• Parra, R.R. - New Mexico State University - Effects of Steer Manure and Citric Acid Amendments on Depleted Uranium (DU) Movement Through Arid Zone Soils.

• Parra, R. - New Mexico State Univesity - Evaluation of Rapidly Biodegradable Chelating Agents for Lead Phytoextraction.

• Parra-Negrete, L.A. - Universidad de Guanajuato, Mexico - The Resurgence of the Agaves in Mexico.

• Parrish, D. - Virginia Tech - Estimating Nitrogen Use Efficiency Under Field Conditions to Improve Switchgrass Production in Virginia.

• Parrish*, D.J. - Virginia Tech - Managing Switchgrass as a Biofuels Crop.

• Parry*, R. - U.S. EPA - Implementing U.S. EPA's CAFO and TMDL Regulations.

• Parsi, Z. - University of Waterloo, Ontario, Canada - Applications of Non-discriminated Pyrolysis to Study Soil and Soil Microorganisms by means of Fatty Acid, Sterol and Hopane Patterns.

• Parsons, L.R. - University of Florida, Lake Alfred - Modeling Water Uptake Dynamics of Mature Citrus Trees Grown on a Sandy Soil in the Central Florida Ridge Region.

• Parsons, R.L. - University of Vermont, Burlington, VT - How Feasible is it to Manage P using Indicators of Loss?

• Pasakdee*, S. - University of California, Santa Cruz, CA.* - Influence of Irrigation and Organic Fertilizers on Nitrate Movement in Organic Broccoli Production.

• Pastor, J. - University of Minnesota - Anaerobic Carbon Cycling in Peatlands.

• Paszkiewicz, S.R. - Pioneer Hi-Bred Intl., Inc. - Corn Response to Planting Dates in the Northern Corn Belt.

• Pataky, J.K. - Dept. of Crop Sciences, University of Illinois - Non-target Effects of a Seed Treatment Insecticide, Thiamethoxam, on Sweet Corn Hybrids.

• Patel, R.R. - Mississippi State University ERC - Molecular Modeling of Complexation Between Soil Contaminants and Organic Ligands.

• Paterson, A.H. - University of Georgia - Crop productivity and Wright's adaptive landscape: Is cotton near an adaptive peak?

• Paterson, A.H. - University of Georgia - Reducing the genetic vulnerability of cotton.

• Paterson, A. - University of Georgia - Development of EST Based PCR Markers in Cotton.

• Pathak, B. - U.S. Agency for International Development - Harnessing Biotechnology for International Agricultural Development: USAID Experience and Future Directions.

• Pathak, H. - Indian Agric. Res. Inst. - Yield and Soil Fertility Trends in a 15-Year Rice-Wheat Experiment in India.

• Pathan*, M.S. - University of Missouri, Columbia, MO - Transcriptional Profiles of Maize lines Differing in Heat Tolerance.

• Patil*, B.S. - Texas A and M University Citrus Center - Functional Components in Citrus: Alteration by Mineral Elements.

• Patrick, W.H. - Louisiana State University - Mitigation of Nitrous Oxide Emission from Fertilized Upland Fields: Laboratory and Field Studies.

• Patrick, Jr., W.H. - Louisiana State University - Effect of Hydrological Gradient on Greenhouse Gas Productions in a Gulf Coast Forest.

• Patrizzi, V.C. - Educational Center of Garca - Soil Penetration Resistance, Bulk Density and Water Content Relationships for six Brazilian Soils Using a Combined Penetrometer-Moisture Probe.

• Patterson, G.T. - Agriculture and Agri-Food Canada - Scaling-up Estimates of Greenhouse Gas Sinks and Emissions for Canada.

• Patterson, G. - Agriculture and Agri-Food Canada - Canada's National Carbon and Greenhouse Gas Accounting and Verification System.

• Patterson, M.M. - University of Wyoming, Dept. of Renesable Resource - Distribution of Selenium in Kendrick Irrigation Project Waters in South-east Wyoming., Distribution of Selenium in Kendrick Irrigation Project Waters in South-east Wyoming.

• Patterson, R.P. - North Carolina State University - Capturing Opportunities for the Future.

• Patterson, S. - Meadwestvaco, Summerville, SC - Loblolly pine growth across gradients of soil physical disturbance and harvest residue.

• Pattey, E. - Agriculture and Agri-Food Canada - Establishing Standard Protocols for Tower-based Nitrous Oxide Flux Measurements.

• Pattey, E. - Agriculture and Agri-Food Canada - Modelling Variability In N2O Emissions From Fertilized Agricultural Fields.

• Pattey, E. - Agriculture and Agri-Food Canada - Estimation Of Greenhouse Gas Emissions From An Agricultural Farm Using The Nocturnal Boundary Layer Method.

• Patton*, A.J. - Purdue University, West Lafayette, IN - Effects of Seeding Date on Bermudagrass and Zoysiagrass Establishment.

• Patzoldt, M.E. - University of Illinois - Evaluation of Chinese Soybean Accessions for Resistance to Brown Stem Rot.

• Paugh, L. - NCDOT - Stratigraphy of a NC Carolina Bay Using Ground-penetrating Radar.

• Paul, E.A. - NREL, Colorado State University, Fort Collins, CO - Microbial Community Structure and the Rhizosphere Effect.

• Paul, E.A. - Colorado State University - The Effect of Long-term Application of Compost on Microbial Diversity in Ammonia Oxidizer Communities.

• Paul, E.A. - Colorado State University - The Role Of Non-Labile Fractions in C Sequestration.

• Paul, E.A. - Michigan State University, retired - Evaluation of Long Term Lawn Care Programs on the Turfgrass Soil Microbial Community.

• Paul, K.I. - CSIRO Forestry and Forest Products - Prediction of carbon turnover in forest litter and soil using the FullCAM model.

• paul, l.e. - university of illinois - strip till, tillage, n placement, and starter fertilizer effects on corn growth and yield.

• Paulitz, T.C. - USDA-ARS - Assessment of Soilborne Disease Pressure in Glyphosate Tolerant Wheat Production.

• Paulitz, T.C. - USDA/ARS - Pathogenicity Assessment of Pythium spp. Collected from Cereal Grain Fields in Eastern Washington.

• Paulitz, T. - USDA-ARS, Pullman, WA - Direct Seeding into Heavy Irrigated Cereal Stubble instead of Burning.

• Pauls, K.P. - University of Guelph - Identification of Molecular Markers associated with Fatty Acid Profile of Soybean Seed Oil.

• Paulsen, G.M. - Dept. of Agronomy, Kansas State University - Physiological and Molecular Characterization of Post-anthesis Heat Tolerance in Triticum aestivum.

• Paulsen, G.M. - Kansas State University - Seed Micronutrient Contents of a Historical Collection of Hard Red Winter Wheats.

• Paustian, K.H. - Colorado State University - NREL - Sensitivity of the CENTURY Model for Estimating Sequestered Soil Carbon Due to the Adoption of No-Till Management in North Central Montana Using Coarse- and Fine- Scale Map Data Sources.

• Paustian, K. - Colorado State University, Fort Collins, CO - Quantifying Soil Carbon Sequestration from Conservation Practices in Iowa, Indiana and Nebraska.

• Paustian, K. - Natural Resource Ecology Laboratory, CSU - Relative Contribution of Roots and Plant Residue to Aggregation and Soil Organic Matter Dynamics.

• Paustian, K. - Colorado State University - The Costs and Carbon Sequestration Benefits of Increasing Conservation Tillage in Iowa.

• Paustian, K. - Colorado State University - Carbon accounting at the national scale: uncertainty in the U.S. inventory

• Paustian, K. - Colorado State University, Natural Resource Ecology Lab - Determining rates and limits of carbon sequestration in soil.

• Paustian, K. - NREL, Colorado State University - Design and Cost of a Measuring and Monitoring Scheme for Soil Carbon Credits.

• Paustian, K. - Colorado State University - Greenhouse Gas Balance for No-Tillage compared to Conventional Tillage.

• Paustian*, K. - Colorado State University - Estimating soil C sequestration with agricultural BMPs.

• Pavich, Z. - Southeast Missouri State University - Rare Earth Element Migration in a Wisconsin Spodosol.

• Payne, W.A. - Texas Agricultural Experiment Station - Sorghum Diversity for Germination and Emergence under Cool Conditions.

• Payne, W.A. - Texas A M Univ. - Water Stress and Take-all of Wheat in Two Closely-Related Genotypes Different in Drought and Greenbug Resistance.

• Payne*, J. - North Carolina State University - Nitrate Retention in Forest Soils of the Southeastern US.

• Payton, M.E. - Oklahoma State University - Assessing Nutrient Runoff From Golf Course Fairways Using Multiple Vegetative Filter Strips.

• Peacock, C.H. - North Carolina State University - Hybrid Bermudagrasses Differ in their Establishment Rates and Growth Characteristics.

• Peacock, C.H. - North Carolina State University - Soil Inorganic Nitrogen Under Fertilized Bermudagrass Turf.

• Peacock, G.L. - USDA-NRCS, Fort Worth, TX - Forage Suitability Group Report Construction.

• Peairs, F.B. - Colorado State University - Status of Russian Wheat Aphid (RWA) - Resistant Feed Barley for Dryland Western U.S.

• Peake, J.S. - University of Nebraska - The Geography of Drought In Nebraska--Patterns, Trends, and Impacts on Agriculture.

• Pearce, J.T. - University of Maryland - The Effects of Seeding Rate Reductions on the Performance of Roundup-Ready Soybean Cultivars.

• Pearson, C.H. - Colorado State Univ. - The Potential of Sunflower as a Rubber-Producing Crop for the United States.

• Pearson, C.H. - Colorado State University - Practical Aspects of Establishing a New Research Project Involving Transgenic Plants at an Off-Campus Research Center.

• Pease, J.W. - Virginia Tech - Developing and Implementing a Mass Based Phosphorus Index in Virginia.

• Pease, J. - Virginia Tech - Annual Grain Yield and Net Return Variation Among Three Crop Rotations in the Virginia Coastal Plain.

• Peaslee, S. - USDA-NRCS, Lincoln, NE - An Environmental Research Strategy for Broad-Based Planning - Lancaster County, Nebraska.

• Pedersen, J.F. - USDA-ARS - A Technique to Reduce Risk of Gene Flow through Sorghum Pollen.

• Pedersen*, J.A. - University of Wisconsin - Madison - Sorption of Sulfonamide Antibiotics to Clay Minerals.

• Pedersen*, W. - University of Illinois - Secondary Pathogens in High Yield Environments.

• Pederson, C.H. - Iowa State University - Phosphorus in Soil and Tile Water as Affected by Fertilizer and Manure Applications to Artificially Drained Iowa Fields.

• Pederson, G.A. - USDA-ARS, Griffin, GA - Distribution of Plant Genetic Resources to New Users.

• Pederson, G.A. - USDA-ARS, Griffin, GA - Nutrients Uptake by Ryegrass Cultivars and Crabgrass from a Highly Phosphorus Enriched Soil.

• Pedreira*, C.G.S. - Universidade de Sao Paulo - ESALQ, Brazil - Forage yield and utilization efficiency of 'Tanzania' guineagrass and 'Guacu' elephantgrass pastures under rotational stocking.

• Peel, M.D. - USDA-ARS, FRRL - Forage Production of Sainfoin Across an Irrigation Gradient.

• Peffley, E. B. - Texas Tech University - Onion Growth and Composition in Hydroponic Systems.

• Pehu, E. - World Bank - World Bank Support to Agricultural Research, Biotechnology and Regulatory Development.

• Peltonen-Sainio, P. - MTT Agrifood Reserch Finland - Nitrogen use efficiency of Modern and Old Spring Barley cultivars in Finnish growing conditions.

• Pemberton, I.J. - Texas Agricultural Experiment Station - Virus Disease Tolerance in Arrowleaf Clover.

• Pena, R.J. - CIMMYT - Wheat Germplasm with Recombined Lr19 and Bdv2 Genes from Two Thinopyrum Chromosome Segments (T7DS.7DL-7Ag)

• Pena-Lomeli*, A. - Universidad Autonoma Chapingo, Chapingo, Mexico - Tomatillo (Physalis ixocarpa) - A Success Story.

• Pena-Yewtukhiw, E.M. - University of Kentucky - Soil-Landscape Modeling across a Physiographic Region: Topographic Patterns and Scales of Soil Variability.

• Pena-Yewtukhiw, E.M. - University of Kentucky - Soil Moisture Retention Under No-Tillage: Influence of Poultry Litter.

• Pena-Yewtukhiw*, E.M. - University of Kentucky - A Stochastic Analysis of Profile Soil Moisture Change Within a Meso-Landscape.

• Pena-Yewtukhiw*, E.M. - University of Kentucky - Topographic Interaction With Nutrient Mitigation of Crop Stress: Eight Site-Years on Early Planted Corn Response to Starter in Kentucky-Pennyroyal Landscape..

• Pender, J. - CGIAR-IFPRI - Impacts of Policies and Technologies in Dryland Agriculture: Evidence from Northern Ethiopia.

• Peng, S. - International Rice Research Institute, Philippines - Comparison of IR8 from Two Different Sources in Genetic Diversity and Phenotypic Traits.

• Pengthamkeerati*, P. - Univerisity of Missouri, Columbia, MO - In-field Carbon Dioxide Efflux in Compacted Soils Amended with Poultry Litter.

• Penn, C. - Virginia Tech - Effect of Feeding Phytase and HAP Corn on the Potential for Phosphorus Losses in Surface Runoff from Virgina Soils Amended with Turkey Manure.

• Penner, D. - Michigan State University - Inheritance of Glyphosate Resistance in Rigidum Ryegrass (Lolium rigidum Gaud.)

• Pepper, I.L. - University of Arizona - GFP-Labeled Plasmid for Monitoring Horizontal Gene Transfer in Soil.

• Peralta, A. - University of Illinois, Urbana-Champaign - Soybean Root Growth Under Elevated CO2 Concentration in the Field.

• Percy, R. - USDA-ARS, Maricopa, AZ - Comparison of Genetic Diversity within Improved Germplasm of Cottons with RFLP, SSR, and RAPD Markers.

• Pereira, M.J. - University of North Carolina-Pembroke - Coleoptile length in dwarf wheat isolines: Gibberellic acid effects as a seed treatment.

• Perez, M.J. - Ceniap-INIA, Venezuela - Quality of soil organic matter under different management practices in a tropical acid soil.

• Perez*, M.P. - Michigan State University - Stimulatory Effect of Ferrous Sulfate Amendments on Polychorinated Biphenyl Anaerobic Dechlorination in Sediments.

• Perez-Martinez*, M.J. - INIA, Maracay, Venezuela - Phosphorus Utilization from Phosphate Rock by Different Tropical Legumes.

• Perillo*, C.A. - Washington State University, Pullman, WA - Cultivating Success: A New Educational Program in Sustainable Small Acreage Farming and Ranching.

• Perkins-Veazie*, P.M. - ARS, USDA, South Central Agricultural Research Lab - Will Potassium Manipulation Increase Antioxidant Levels in Horticultural Crops?

• Pernes, M. - Unite Science du Sol, INRA Versailles - Thermal Analysis of Stable Organic C in a Cultivation Chronosequence.

• Perotto, H. - Texas A and M University - Soil Attributes that Govern Landscape Stability in Tropical Steeplands.

• Pertiziger*, F. - SANIGMI, Tashkent - Agroecological Characterization of Central Asia.

• Pessarakli*, M. - University of Arizona - Growth Responses of Bermudagrass to Different Levels of Nutrients of the Culture Medium.

• Pessarakli*, M. - University of Arizona - Interactive Effects of Salinity Stress and Primo Growth Regulator on Bluegrass.

• Pester, T.A. - Monsanto - Ecological Risk Assessment of Gene Flow in Transgenic Crops.

• Pester*, T.A. - Monsanto - Pollen Mediated Gene Flow in Canola.

• Pester*, T.A. - Monsanto - Pollen Mediated Gene Flow in Corn.

• Peternele, W.S. - UEM,Maringa-PR,Brazil - Identification and Characterization of the Expandable Clay Minerals and their Relationship with the Availability of Metals and Retention of K+ In Soils of the Parana River Basin.

• Peternele*, W.S. - UEM,Maringa-PR,Brazil. - Preparation and Characterization of Pillared Clays with Al-Hydroxy Polymers by FTIR and TGA.

• Peternele., W.S. - UEM,Maringa-PR,Brazil - Binding Energy (BE) and Maximum Phosphorus Adsorption Capacity (MPAC) in a Toposequence of Soils Derived from Basalts South of Brazil.

• Peternele., W.S. - UEM,Maringa-PR,Brazil - Specific Surface Area of Soil Materials After Different Dissolution Procedures.

• Peters, C.J. - Cornell Univ. - Linking Human Nutrition to Land Resources in New York State.

• Peters*, J.B. - University of Wisconsin-Madison, Madison, WI - Forage Cations as Affected by Soil pH and Topdressed K.

• Petersen, G.W. - Penn State University - The Dissolution of the Soil Science Department at Missouri: Lessons for the Proffession.

• Petersen, M.L. - USDA-NRCS, Greeley, CO - Soil Quality: Comparison of Conventional Winter Wheat/Fallow Cropping to Native Grasslands in eastern Colorado.

• Petersen, M. - Utah State University - Water and Nutrient Stresses Increase Root Exudation.

• Petersen, P.J. - North Dakota State Univ., Fargo - Plant Cutoff Effects on Field Pea Growth and Yield.

• Peterson, D.E. - Dept. of Agronomy, Kansas State University, Manhattan, KS - Effects of Crop Rotation and Tillage on C and N dynamics and Aggregate Stability in Eastern Kansas.

• Peterson, G.A. - Colorado State University, Fort Collins, CO - A Modeling Approach to the Evaluation of Alternative Cropping Systems.

• Peterson, J.R. - Purdue University - PAM Research on Agricultural and Disturbed Soils in Rainfed Areas.

• Peterson, J. - Iowa State University - Development of Near-Isogenic Lines of Soybean Varying in Seed Protein and Oil Content.

• Peterson, P. - Univ. of MM, St. Paul, MN - Nitrogen Impacts on Legume Persistence and Pasture Productivity in Grass/Legume Pastures.

• Peterson, R.W. - Syngenta Seeds, Inc. - Validation of CERES-Maize Simulation Model for Hybrid Performance Prediction Using Site-Specific Observations.

• Peterson, S. - AMD+ART - Phyto-Engineering of Abandoned Acid Mine Drainage.

• Peterson, T.M. - San Francisco State University - Oxyanion Immobilization in Soil by Reactions with Zero-Valent Iron Corrosion Products.

• Peterson, T.S. - USDA-ARS, Fargo, ND - Alien Addition Lines of Durum Wheat: Prospects for Breeding for Scab Resistance.

• Peterson*, C.J. - Oregon State University - Nuclear and Cytoplasmic Diversity of Pacific Northwest Wheat Germplasm.

• Petrie*, S.E. - Oregon State University - Nitrogen Management for Winter Malting Barley.

• Petrovic, A.M. - Cornell University - Runoff and Percolate Losses of Pesticides from Turfgrass.

• Petrovic, A.M. - Cornell University - Nutrient Loss via Runoff and Percolate from Turfgrass.

• Petrunak, D.M. - The Pennsylvania State University - Evaluation of Spent Mushroom Substrate as a Topdressing for Established Turfgrass.

• Pettapiece, W.W. - Agriculture and Agri-Food Canada - Soil Landscape Studies in Alberta, 1996-2002.

• Pettigrew, W.T. - USDA-ARS - Impact of K Fertilization on Reniform Nematode Populations in Cotton.

• Pettygrove, G.S. - Univ. of California, Davis - Successful use of liquid dairy manure applied by border check irrigation to alfalfa.

• Pettygrove, G.S. - University of California, Davis - Potassium Fixation Potential Predicted from SSURGO Data in Soils of the San Joaquin Valley, California.

• Pettygrove, G.S. - Univ. of California, Davis - Improved Dairy Manure Nutrient Management Systems for Irrigated Forage Crops.

• Pettygrove*, G.S. - Univ. of California, Davis - Net Mineralization of liquid dairy manure organic N.

• Pfahler, P.L. - University of Floorida - Diploid-tetraploid comparisons in red clover: Seed weight effects on seedling growth.

• Pfahler, P.L. - University of Florida - Coleoptile length in dwarf wheat isolines: Gibberellic acid effects as a seed treatment.

• Pfeffer*, P.E. - USDA-ARS, Wyndmoor, PA - On-farm Production of AM Fungus Inoculum.

• Pfeiffer, K.L. - USDA-NRCS, Portland, OR - Evaluating Environmental Risks with the Windows Pesticide Screening Tool.

• Pfeiffer*, T.W. - University of Kentucky - Agronomic Comparisons of Extra Dense Pubescence Soybean.

• Phatak, S. - University of Georgia, Tifton - Can a Sequence of Green Manures Replace Chemical N as a Fertilizer Source for Sweet Corn ?.

• Philley, H.W. - Miss. State Univ. - The Phenotypic Stability of Triploid Bermudagrasses When Exposed to Dinitroaniline Herbicides.

• Phillips, J.G. - IRI, Columbia University - Ugandan Farmers' Perceptions of Climate in Farm Management.

• Phillips, R.L. - University of Minnesota - Chromosomal Distribution of Maize Repetitive Sequences.

• Phillips, R.P. - Cornell University - Tree Species Influences on Belowground Carbon Flux: Assessing the Rhizosphere Effect in Forest Trees.

• Phillips, R.P. - Cornell University - Methane Dynamics in Peatland Ecosystems: Reassessing Patterns and Processes.

• Phillips, R.P. - Cornell University - Mercury retention in wetlands of the Adirondack Region, New York.

• Phillips, S.B. - Virginia Tech University - Changes in Spectral Reflectance-Based Wheat Grain Yield Prediction Models due to Spring Mineralization of Organic Nitrogen.

• Phillips, S. - Virginia Tech - Production and Environmental Impacts of using Alum-amended Poultry Litter as a Fertilizer Source for Corn.

• Phillips, T.D. - University of Kentucky - Assessing Seedling Vigor Differences in Endophyte-free Tall Fescue Half-sib Families.

• Phillips, T.D. - University of Kentucky - Quantifying Stand Density Differences in Grazed Tall Fescue Variety Trials.

• Phillips, T. - University of Kentucky - RAPD Analysis of Annual Bluegrass Biotypes.

• Phillips, W.A. - USDA-ARS - Short-Duration Pigeonpea-A Potential Grain and Forage for Southern Plains.

• Phillips, W.A. - USDA-ARS-GRL, El Reno, OK - Soluble sugars of Oklahoma forages harvested in morning and afternoon: stocker preference.

• Phillips*, J.C. - California Polytechnic State University - Effect of Seed Priming and Temperature on Germination of Lettuce Seed.

• Phillips*, S.B. - Virginia Tech - Changes in Nitrogen Use Efficiency of Winter Wheat Using In-Season Methods of Determining Topdress N Requirement.

• Phippen, W.B. - Western Illinois University - Preemergence Herbicide Screening for Cuphea.

• Phipps, P.M. - Virginia Tech - Genetic Transformation of Peanut with the Gene for Oxalate Oxidase.

• Phiri, S. - Agricultural University of Norway - Changes in Soil Organic Matter and Phosphorus Fractions under Planted Fallows and a Crop Rotation on a Colombian Volcanic-Ash Soil.

• Piatek, K.B. - SUNY-College of Environmental Science and Forestry - Tracing Nitrate Sources in Surface Water in a Northern Hardwood Forest.

• Piccinni, G. - Texas A and M University -TAES - Uvalde, TX - Site Specific Management of Plant Stress Using Infrared Thermometers and Accu-pulse.

• Piccinni *, G. - Texas A and M University - TAES, Uvalde - Construction of Three Weighing Lysimeters for the Determination of Crop Coefficients.

• Pickering, N.B. - Univ. of Florida - Evaluating the CROPGRO-Soybean Model for Predictions of Phenology, Growth, Photosynthesis, and Yield by Comparison to Elevated Temperature and CO2 Experiments.

• Piekielek*, W.P. - Penn State Univ. - Cornstalk Sap Nitrate as a Late-Season Nitrogen Sufficiency Test.

• Pierangeli, M.A.P. - UFLA, Lavras (Brazil) - BASELINE CONCENTRATION OF HEAVY METALS IN BRAZILIAN LATOSOLS.

• Pierzynski, G.M. - Kansas State University - Soil Chemistry Curriculum Development: Introduction.

• Pierzynski, G.M. - Kansas State University/Dept. of Agronomy - Soil Chemical Properties Beneath Swine and Cattle Waste Lagoons.

• Pierzynski, G.M. - Kansas State University - Revegetation Strategies for a Fly-Ash Disposal Site in a Semi-arid Region.

• Pierzynski, G.M. - Kansas State University - Anti-Traction Material Effects on Vegetation and Soil Water Holding Capacity.

• Pierzynski, G.M. - Kansas State University - A Field-Based Assessment Tool for Phosphorus Losses in Runoff in Kansas.

• Pietsch., D. - Texas A and M University. - Comparative Performance of Early, Intermediate and Full Season Hybrids Across Environments.

• Pietz, R.I. - Metro. Water Reclamation District - Chicago - Comparison of Phosphorus Release Characteristics in Chicago Biosolids.

• Pietz, R.I. - Metro Water Reclamation District Greater Chicago - Use of Biosolids to Establish Turf and Native Plants in Urban Reclamation Projects: Are Salinity and Sodicity a Problem?

• PIGNA, M. - University of Naples, Italy - Effect of Organic and Inorganic Ligands on the Sorption/Desorption of Arsenate on/from Soil Components.

• Pikul Jr.*, J.L. - USDA-ARS, Brookings, SD - Concentration of Soil Carbon and Glomalin Affected by Tillage in Eastern South Dakota.

• Pilcher, D.L. - University of Kentucky - Agronomic Comparisons of Extra Dense Pubescence Soybean.

• Pils, J.R.V. - Iowa State University - Smectite Tactoid Formation induced by Confined and Double Layer Monovalent Cations.

• Pilson, D. - University of Nebraska - Gene Flow from Transgenic Crops to Wild and Weedy Relatives: When Is It a Problem?

• Ping, C.L. - Univ. of Alaska-Fairbanks - Challenges of Determining Carbon Pools in Arctic Tundra Soils.

• Ping, C. - University of Alaska Fairbanks - Bioavailability and Chemical Characterization of Soil Organic Matter in Arctic Soils.

• Ping, J. - University of Nebraska - Processing spatial data for delineating sampling and management zones.

• Pinkston, C.B. - Alabama Cooperative Extension System - Garden Tillage Techniques.

• Pinnock, D.R. - Utah State University - Leaf Temperature: Applying the Crop Water Stress Index to Controlled Environments.

• Pinter, Jr., P.J. - USDA, ARS, U.S. Water Conservation Laboratory - Frost-induced changes in spectral characteristics of of grain sorghum.

• Pinter, Jr.*, P.J. - USDA-ARS, Phoenix, AZ - Combining Remotely-Sensed Crop Coefficients with the FAO-56 Irrigation Scheduling Procedures.

• Pintro, J.C. - UEM,Pr,Brazil - Removal of Fe and Zn from strong acid industrial residues with iron oxides.

• Piper, R.J. - Spectracon, Clearwater, FL - Determination of N and P Concentrations in Broiler Litter Using Near Infrared Reflectance Spectroscopy.

• Pirani*, A.L. - University of Arkansas - Cultivation Effects on Native Soil Quality in the Delta Region of Eastern Arkansas.

• Pittman, J.J. - Oklahoma State University - Relationship of Phosphorus in Mehlich 3 Extracts between ICP and Colorimetric Analyses.

• Pizarro, C.X. - USDA-ARS, Beltsville, MD - Growth of Benthic Algae on Dairy Manure.

• Plante*, A.F. - Unite Science du Sol, INRA Versailles - Thermal Analysis of Stable Organic C in a Cultivation Chronosequence.

• Plewa, M.J. - University of Illinois, Champaign-Urbana, IL. - The Effects of Soil Components and Processes on the Toxicity of Pesticides to Mammalian Cells.

• Pline, W.A. - North Carolina - Reproductive Abnormalities in Glyphosate-Resistant Cotton Due to Lower CP4-EPSPS Levels in Male Reproductive Tissue.

• Pline, W.A. - North Carolina State University - Effect of Glyphosate on Pollination and Seed Set in Glyphosate-Resistant Corn and Weed Species.

• Plotkin, S. - UMASS Extension, Amherst, MA - Evaluating Environmental Risks with the Windows Pesticide Screening Tool.

• Poach, M.E. - USDA-ARS - Swine Wastewater Treatment in Constructed Wetlands.

• Pockalny, R. - University of Rhode Island - GEMS-NET: Integrating Natural Resource Science into a Balanced Science Curriculum in Grades K - 8.

• Poehlmann, C.J. - University of Missouri - Findings of the Review of Missouri Ag Experiment Stations.

• Poerschmann*, J. - Center for Environmental Protection, Lepizig, Germany - Applications of Non-discriminated Pyrolysis to Study Soil and Soil Microorganisms by means of Fatty Acid, Sterol and Hopane Patterns.

• Pogranichniy*, S.L. - Iowa State University - Field Course in Agroecology: Comparative Analyses of Midwest Farms.

• Poland, J.A. - Kansas State University - Mapping Aegilops tauschii-Derived Leaf Rust Resistance Genes in Wheat.

• Poland, W.W. - North Dakota State Univ., Dickinson Res. Ext. Ctr., 1089 State Ave., Dickinson, ND 58601 - Forage Yield and Quality of Cool Season Cereals.

• Polglase, P.J. - CSIRO Forestry and Forest Products - Prediction of carbon turnover in forest litter and soil using the FullCAM model.

• Poling, K. - Pioneer Hi-Bred Intl., Inc. - Corn Response to Planting Dates in the Northern Corn Belt.

• Polizotto, K.R. - Potash Corporation of Saskatchewan - P and K Fertilizer Placement Options on Alfalfa, Corn and Soybeans.

• Polyakov*, V.O. - Purdue University - Using Rare Earth Element Tracers in a Watershed Soil Erosion Study.

• Popham, T.W. - USDA-ARS-SPA - Effects of Soil Tillage, Crop Residue, and Winter Small Grains on 0 - 2 Meter Wind Speed Profiles.

• Porter, C. - Virginia Tech - Genetic analysis of sucrose, raffinose, and stachyose content in soybean seeds.

• Porter, G.A. - University of Maine, Orono ME - Changing Soil Carbon and Nitrogen Pools in Intensively Tilled Rotations.

• Porter, G. - University of Hawaii at Manoa - Dynamics of Plant Response to Manganese Toxicity: Its Use in Managing Excess Manganese in Acid Soils.

• Porter, G. - University of Hawaii at Manoa - Correcting Nutrient Deficiencies in the Corraline Soils of the Marshall Islands with Local Organic Materials.

• Porter, G. - University of Hawaii at Manoa - Extracting information from variability: Using geostatistics to improve soil carbon estimates.

• Porter, P.M. - University of Minnesota - Niger Research in Northwest Minnesota.

• Porter, P.M. - University of Minnesota - Field Course in Agroecology: Comparative Analyses of Midwest Farms.

• Porter, R. - University of Minnesota - Wild Rice Pollen Travel.

• Porter*, G.S. - University of Hawaii @ Manoa, Honolulu, Hawaii - Response of Macadamia Integrifolia to Mulching as a Correction to Nutrient Phosphorus Uptake Inefficiency.

• Porter*, R.A. - Univ. of Minnesota - Breeding for Seed Traits of Wildrice: Heritabilities, Gain From Selection, and Trait Correlations.

• Portier, K.M. - University of Florida - Threshold Degree of Phosphorus Saturation (DPS) for Florida's Sandy Soils.

• Portier, R. - Louisiana State University - Mitigation of Nitrous Oxide Emission from Fertilized Upland Fields: Laboratory and Field Studies.

• Posner, J.L. - University of Wisconsin-Madison - Accelerated Aging of Agricultural Soils and the Coupling of the Nitrogen and Proton Cycles.

• Post, C.J. - Clemson University - Stable carbon isotopic composition of pedogenic carbonates in the Russian Chernozem under different management regimes.

• Post, M. - Oak Ridge National Laboratory - Regional Estimation of Carbon Immobilization in Surface Soils.

• Post, W.M. - Oak Ridge National Laboratory - Elements of a Credible Accounting System for Sequestering Carbon in Soil.

• Post, W.M. - Oak Ridge National Laboratory - Stocks and Dynamics of Soil Organic Carbon as affected by Land Management.

• Post III, W.M. - Oak Ridge National Laboratory - Landscape Level Differences in Soil Carbon and Nitrogen: Implications for Soil Carbon Sequestration.

• Post*, W.M. - Oak Ridge National Laboratory, Oak Ridge, TN - Fire, Soils and the Global Carbon Cycle.

• Post*, W.M. - Oak Ridge National Laboratory - Integrated Analysis of Soil Carbon Sequestration Enhancement Methods.

• Pote, D.H. - USDA-ARS, Booneville, AR - Determination of N and P Concentrations in Broiler Litter Using Near Infrared Reflectance Spectroscopy.

• Pote, D. - USDA-ARS, Booneville AR - Effects of Amendments on Test Values for P for a Soil Receiving Manure from an Egg-laying Operation.

• Pote, J. - Rutgers University - Changes in cytokinins and antioxidant activity in response to increasing soil temperatures in creeping bentgrass.

• Pote, J. - Rutgers University - Physiological Responses to Simultaneous Drought and Heat Stress and Recovery for Kentucky Bluegrass.

• Pote*, D.H. - USDA-ARS, Booneville, AR - Incorporating Inorganic Fertilizer into Perennial Grasslands.

• Pote*, J. - Rutgers, The State University of New Jersey - Protein Changes in Response to Increasing Temperatures for Creeping Bentgrass.

• Pote*, J. - Rutgers, The State University of New Jersey - Soil Temperature Thresholds Causing Heat Injury in Creeping Bentgrass.

• Poth, M. - USDA-CSREES, Washington, DC - USDA-CSREES Competitive Funding Opportunities to Meet the Challenges of Increased Crop Production While Protecting the Environment.

• Poth*, M. - USDA-CSREES, Washington, DC - National Science Foundation-United States Department of Agriculture Grantsmanship Workshop.

• Potter, B.D. - University of Minnesota - Strip-tillage in the Northern US Corn Belt: Abiotic and Biotic Effects on Corn Growth and Yield.

• Potter, D.K. - USDA-NRCS, Columbia, MO - Soil Phosphorus Spatial Distribution in Pastures Receiving Poultry Litter Applications.

• Potter, K. - USDA-ARS, Temple, TX - Topsoil Regeneration Using Processed Municipal Solid Waste Pulp.

• Potter, R.L. - Univ. of Georgia - Biomass and P Uptake by Pigeonpea Varieties in Georgia, USA.

• Potter, R. - University of Georgia - Calcium Cycling in Relation to Prescribed Fire on Oligotrophic Sites in North Florida.

• Potter, S. - TAES-Blackland Research Center - Probabilistic Indexes for Phosphorus Losses.

• Potter, T. - USDA-ARS. Georgia - Considerations for determining anthropogenic background of arsenic in urban areas.

• Potter*, R.L. - University of Georgia - Carbon Sequestration in Riparian Forest Buffers on the Lower Coastal Plain.

• Potts, D. - Soil Air Technology - The influence of soil carbon dioxide on turfgrass performance: field observations from California and Illinois golf course greens.

• Poudel, D.D. - University of Louisiana, Lafayette, LA - Water Quality Monitoring in Bayou Plaquemine Brule Watershed in Southwestern Louisiana.

• Poudel*, D.D. - University of Louisiana at Lafayette - Monitoring surface runoff from Sugarcane fields, Pasture lands, and Rural Residential areas in Vermilion-Teche River Basin, Louisiana.

• Poulsen, T.G. - Aalborg University - Application of predictive three-region models for unsaturated hydraulic conductivity in undisturbed soils.

• Pouyat, R. - USDA-Forest Service, Baltimore, MD. - Urban Context of Abbreviated and Physically Disturbed Soil Profiles and Characteristics in the Baltimore Metropolitan Region.

• Powell, A.J. - University of Kentucky - RAPD Analysis of Annual Bluegrass Biotypes.

• Powell, J.M. - USDA-ARS - Dairy Diet Effects on Manure Nitrogen Excretion and Cycling in Soils.

• Powell, J.M. - USDA-ARS, Madison, WI. - Incubation trial examining mineralized N using various labeled manure components and soils.

• Powell, J.M. - Univ. of Wisconsin- Madison. - Estimating Second- and Third-year Nitrogen Availability from Dairy Manure.

• Powell, Jr., A.J. - University of Kentucky - Renovation of perennial rygegrass turf to seeded bermudagrass.

• Power, B.F. - University of Calfornia, Riverside - Comparison of Drip Irrigation Applications for Experiment Station Row Crop Plot Management.

• Powers, R.F. - USDA-FS, Redding, CA - Assessing Soil Quality in Our Forests: Where do we go from here?

• Powers, R.F. - USDA Forest Service Redding, CA - The effects of forest understory management on soil carbon dynamics.

• Powers, W.J. - Iowa State University - Grazing Management Systems to Minimize Phosphorus Losses from Upland Pastures.

• Powers, W.J. - Iowa State University - Effect of Dietary Modification on Manure Phosphorus: Implications for Water Quality and Regional Nutrient Management Planning.

• Powers, W.J. - Iowa State University - Stream bank erosion along different land-use practices with an emphasis on different grazing practices.

• Powlson, D.S. - Rothamsted Research, Harpenden, UK - How to get C Trading to Work?

• Poyer, I.C. - Purdue University - Flow and transport in Subsurface-Drained Agricultural Fields.

• Poysa, V.W. - Agriculture and Agri-food Canada, Harrow, Ontario - Molecular Marker Mapping of Genes Controlling Isoflavone Levels in Soybean Seed.

• Pozdnyakova, L. - Rutgers University, NJ - Influence of Water Regimes on Cranberry Growth and Phytophthora Development in Sandy Soil.

• Pozdnyakova, L. - Rutgers, The State of New Jersey - Spatial Variability of Water Flow Through Undisturbed Soil Columns.

• Pozdnyakova, L. - Rutgers University, NJ - Performance of 13-year-old macadamia varieties and hybrids in the Kenyan Highlands.

• Pozdnyakova*, L. - Rutgers University, NJ - GIS Analysis to Evaluate Spatial and Temporal Trends in Cranberry Production in New Jersey.

• Prasad, P.V.V. - University of Florida, Gainesville - Effect of Elevated Temperature on Spikelet Fertility and Harvest Index of Rice Genotypes.

• Prasad, S.N. - University of Mississippi - A Phenomenological Description of Granular Gravity Flow.

• Prates, H.T. - Embrapa Maize and Sorghum - Behavior of Imazaquin and Flazasulfuron in Brazilian soils.

• Pray, C. - Rutgers University - Plant Biotechnology in Developing Countries: Current Impact, Potential Impact, and the Implications for Policy Makers.

• Pregitzer, K.S. - Michigan Technological University - Effect of Soil Fertility on Physically Fractionated Soil C and N Pools of Sandy Soils Exposed to Elevated Atmospheric CO2.

• Prenger*, J.P. - Soil and Water Science Dept. University of Florida - Organic C Storage and Cycling As Indicators of Ecological Condition For Military Land Management.

• Prescott, C.E. - University of British Columbia - Nitrogen Nutrition of Western Redcedar, Western Hemlock and Salal: Species-Specific Mechanisms.

• Prescott, C.E. - University of British Columbia, Vancouver BC - What is litter quality and how does it influence decomposition.

• Presley, W.N. - Auburn University - In-service Training via Conference Call and Internet Streaming.

• Preston, C.M. - Natural Resources Canada - Soil and Dead Organic Matter Carbon Accounting in Forest Ecosystems: The Canadian Approach.

• Preston*, C.M. - Pacific Forestry Centre, Victoria BC - What is litter quality and how does it influence decomposition.

• Preston*, C.M. - Pacific Forestry Centre, Victoria BC - Characterization of black (pyrogenic) carbon in forest soil organic matter.

• Price, R.A. - USACE-ERDC - Phyto-Engineering to Solve Environmental Problems.

• Price, R.A. - USACE-ERDC - Phyto-Engineering of Petroleum Hydrocarbon Contaminated Dredged Material.

• Price*, A.J. - North Carolina State University - Variable-Rate Herbicide Application for Precision Weed Management.

• Price*, R.A. - ERDC-WES, Vicksburg, MS - Phyto-Engineering to Remediate PAH and PCB Contaminated Dredged Material.

• Priddy, W. - USDA-ARS, University Park, PA - Impact of Manure Application and Crop Rotation on the Distribution of Carbon, Nitrogen, and Phosphorous Among Soil Organic Matter Pools.

• Prietzel*, J. - Chair of Soil Science, TU Muenchen - Reconversion of Scots pine monocultures into deciduous tree stands: Effects on soil chemical properties, ground vegetation, and earthworm populations.

• Prietzel*, J. - Chair of Soil Science, TU Muenchen - Assessment of organic sulfur species in forest soils using NEXAFS and an ion-sensitive electrode.

• Primavesi, O. - Embrapa Cattle Research of the Southeast - Soil Penetration Resistance, Bulk Density and Water Content Relationships for six Brazilian Soils Using a Combined Penetrometer-Moisture Probe.

• Primomo*, V.S. - University of Guelph - Molecular Marker Mapping of Genes Controlling Isoflavone Levels in Soybean Seed.

• Prine, G.M. - University of Florida - Ryegrass Selection for Dairy Operations in Florida.

• Prine*, G.M. - University of Florida - Progress in Selecting Annual Ryegrass for Resistance to Gray Leaf Spot.

• Prins, T. - RIKZ, Middelburg, The Netherlands - Assessment of Environmental Effects of Manure Policy Options in The Netherlands.

• Prior, S.A. - USDA-ARS, Auburn, AL - Effects of Elevated Atmospheric CO2 on Nitrogen and Carbon Cycling in a Model Longleaf Pine Community.

• Prior*, S.A. - USDA-ARS NSDL, Auburn, AL - A Hydraulic Soil Coring System For Soil Carbon-Root Studies.

• Pritchard, S.G. - USDA-ARS, Big Spring, TX - Effects of Elevated Atmospheric CO2 on Nitrogen and Carbon Cycling in a Model Longleaf Pine Community.

• Prochnow, L.I. - University of Sao Paulo - Agronomic Evaluation of Iron Phosphate Compounds in Single and Triple Superphosphates to Upland and Flooded Rice.

• Procopiuk, A.M. - University of Illinois - Identification of putative QTL that underlie yield in interspecific soybean crosses.

• Prosser, J.I. - University of Aberdeen - The Effect of Long-term Application of Compost on Microbial Diversity in Ammonia Oxidizer Communities.

• Provenza, F.D. - Utah State University - BEHAVE: Behavioral Education for Human, Animal, Vegetation and Ecosystem Managment.

• Provenza, F.D. - Utah State University - Effect of Added Sugar on Preference and Intake by Sheep of Hays Cut in the Morning versus the Afternoon.

• Provin, T.L. - Texas A+M University - Runoff Loss of Manure P and N from Transplanted Turfgrass Sod.

• Provin, T. - Texas A and M University - Susceptibility of Russian Wildrye to Acidic Soil / Aluminum Toxicity.

• Prueger, J.H. - USDA-ARS National Soil Tilth Laboratory - How Efficient are Higher Yields?

• Puckett, W.E. - NRCS-Soil Quality Institute - Management-dependent soil properties: Are they dependent in the short-term?

• Puckett, W. - USDA-NRCS, Auburn, AL - Dynamic Soil Properties and Advancing the Science of Soil Change.

• Puckett, W. - USDA-NRCS, Auburn, AL - A Nutrient Soil and Water Quality Assessment of Central Alabama.

• Puckett, W. - USDA NRCS, Soil Quality Institute, Auburn, AL - Advances in Carbon Measurement with Laser-Induced Breakdown Spectroscopy: High Resolution Data from Intact Soil Cores.

• Puget, P. - OSU School of Natural Resources - Stocks and Dynamics of Soil Organic Carbon as affected by Land Management.

• Pugh*, B.C. - University of Arkansas, Fayetteville, AR - The Effects of Potassium Fertilizer Rate and Rice Uptake on Soil Potassium Pools During the Season.

• Pugh*, B.C. - University of Arkansas - The Effect of Potassium Fertilizer Rate and Application Timing on Potassium Uptake by Rice.

• Pumphrey, M.O. - University of Minnesota - Development and Characterization of Wheat Lines Near Isogenic for a Fusarium Head Blight QTL.

• Punshon*, T. - CRESP, Rutgers University - Retrospective biomonitoring using spatially resolved X-ray microanalysis of Salix nigra L. in a Ni and U contaminated depositional system

• Puppala, N. - Agricultural Science Center at Clovis - NMSU - Yield Response of Valencia Peanut with different row orientations, Nitrogen Rates and Rhizobium Inoculum.

• Puppala, N. - Agricultural Science Center at Clovis - NMSU - Comparison of Cotton Yield when Grown Under Subsurface Drip and Flood Irrigation Systems.

• Purcell, L.C. - University of Arkansas - Using 'High-Yield Contests' as an Instructional Tool in Undergraduate Education.

• Purcell, L.C. - University of Arkansas, Fayetteville. - Strategies for Optimizing Light Use in Soybean.

• Purcell, L.C. - University of Arkansas - Near Isolines for Traits Putatively Associated with Drought-Tolerant N2 Fixation in Soybean.

• Putnam, D.H. - University of California - Alfalfa Harvest Timing for Highest Returns.

• Putnam, D.H. - Univ. of California, Davis - Successful use of liquid dairy manure applied by border check irrigation to alfalfa.

• Putnam, D.H. - Univ. of California, Davis - Improved Dairy Manure Nutrient Management Systems for Irrigated Forage Crops.

• Putnam*, D.H. - University of California, Davis - Sources of Variation in Forage Quality in Large Bales of Alfalfa Hay.

• Putnam*, D.H. - University of California - Diurnal Effects on Alfalfa Forage Quality in Varied Agro-Climatic Zones in California.

• Pyke, D.A. - USGS-FRESC, Corvallis, OR - Soil Resistance, Resilience and Quantification of Soil and Ecological Functions.

• Qafoku, N.P. - Battelle-Pacific Northwest National Laboratory - Reactive transport in Hanford sediments under hyperalkaline conditions.

• Qafoku, O.S. - Battelle-Pacific Northwest National Laboratory - Reactive transport in Hanford sediments under hyperalkaline conditions.

• Qi, F. - University of Wisconsin-Madison - The Extraction of Basic Soil-landscape Model From Existing Soil Maps Using Data Mining.

• Qi, F. - University of Wisconsin-Madison - Integrating General Knowledge with Location Specific Knowledge for Knowledge-based Fuzzy Soil Mapping.

• Qi, J. - University of Delaware - Removal of Bacteriophage from Aqueous Systems by An Anionic Clay.

• Qian, Y.L. - Colorado State University - Spectral Reflectance Response of Three Turfgrasses to Leaf Dehydration.

• Qian, Y.L. - Colorado State University - Interactive Effects of Salinity Stress and Primo Growth Regulator on Bluegrass.

• Qu, R. - North Carolina State University - Production of High-Value Products From close-seeded Transgenic Tobacco.

• Quackenbush, J. - The Institute for Genomic Research - The Whole Genome Sequence of Arabidopsis thaliana: Where Do We Go From Here?

• Quackenbush, J. - The Institute for Genomic Research, Rockville, MD - Phenotypic and Gene Expression Analyses of the SAG12:ipt Transgenic Plants. A Window into the Hormonal Regulated Stress Tolerant Response

• Quensen , J.F. - Michigan State University - Stimulatory Effect of Ferrous Sulfate Amendments on Polychorinated Biphenyl Anaerobic Dechlorination in Sediments.

• Quesenberry, K.H. - University of Florida - Diploid-tetraploid comparisons in red clover: Seed weight effects on seedling growth.

• Quideau, S.A. - University of Alberta - Soil Organic Matter Chemistry in Undisturbed and Clearcut Boreal Mixedwoods.

• Quideau, S.A. - University of Alberta, Edmonton - Organic matter processes in arboreal Histosols of the coast redwood rainforest.

• Quijada*, P.A. - University of Wisconsin - Madison - Effect of winter germplasm introgression into Spring Canola Hybrids.

• Quijada*, P.A. - University of Wisconsin-Madison - Confirmation of Quantitative Trait Loci (QTL) controlling Hybrid Seed Yield in Multiple Backgrounds of Spring Canola.

• Quincke, J.A. - Dep. of Agronomy and Horticulture and USDA-ARS. - Soil Microbial Community responses during Early Season Corn Growth following supplemental N and P starters.

• Quinn*, T.M. - University of Wisconsin Department of Geography - Scale-Dependent Effects of Spatially Detailed Soil Information on Hydro-Ecological Modeling.

• Quiring*, R.H. - Conviron - Energy Impact Of Choices For Temperature And Humidity Control.

• Quisenberry, V.L. - Clemson University - Organic Matter Content and Water Repellency of Amended Sand Mixtures from Field Grown Bentgrass Putting Greens.

• Qureshi, S. - Cornell University - Effect of Microbial Activity, pH and Matrix of the Porous Media on the Trace Elements released from anaerobically digested Sewage Sludge.

• Rabenhorst, M.C. - University of Maryland - Hydromorphology of Anomalous Bright Loamy Soils (ABLS) of the Mid Atlantic Coastal Plain.

• Rabenhorst, M.C. - University of Maryland - Hydromorphology of Mid-Atlantic Piedmont Floodplain Soils.

• Rabenhorst, M.C. - University of Maryland - Light Mineral Assessment of Soils formed in Quaternary Silts in Maryland.

• Rachman, A. - University of Missouri - Soil Hydraulic Properties Influenced by Stiff-Stemmed Grass Hedges.

• Raciborski*, M.A. - Auburn University - Suitability of Seeded Bermudagrasses for Use on Athletic Fields.

• Raczkowski, C. - NC A and T State University - Spatial variability of soil nutrients (N and P) in Piedmont soils.

• Radcliffe, D.E. - University of Georgia - Predicting Phosphorus Loss from Surface Applied Poultry Manure.

• Radcliffe, D.E. - University of Georgia - Cr(VI) Migration in Variably-Saturated Soils.

• Radcliffe, D.E. - University of Georgia - Cattle Management Effects on Stream Water Quality.

• Radcliffe, D.E. - University of Georgia - Challenges of an Automated and Integrated Hydrologic Monitoring and Water Quality Sample Collection System for Research in Non-point Source Pollution.

• Rafique, E. - NARC, Islamabad, Pakistan - Boron Deficiency in Cotton in Calcareous Soils of Pakistan: Diagnosis, Spatial Distribution and Management.

• RAH, E.S. - Research Center for IDBM - Responses of glycolytic, fermentative and antioxidant enzymes to hypoxia in barley.

• Raines*, P. - Virginia Tech - Virtual Alfalfa: The Forage Management Tool of the Future.

• Rainey, F. - Louisiana State Univ. - Molecular taxonomy; uses and misuses.

• Rainey, III*, W.G. - Auburn University - Aerification Tine Effects on Bermudagrass Athletic Fields.

• Rajapakse, N.C. - Clemson University - Daily Sunlight Requirements for 'TifEagle' Bermudagrass Golf Greens.

• Rajaram, S. - CIMMYT - Production and Utilization of Synthetic Hexaploid Wheats for Global Biotic/Abiotic Stress Constraints.

• Rajaram, S. - CIMMYT - CIMMYT Advanced Wheat Improvement Research Training Course For Developing Countries.

• Rajcan, I. - University of Guelph - Mapping of QTLs for Seed Quality Traits in an Interspecific Soybean Population.

• Rajcan, I. - University of Guelph - Genetic mapping of partial resistance to Sclerotinia Stem Rot in Soybean.

• Rajcan, I. - University of Guelph - Identification of Molecular Markers associated with Fatty Acid Profile of Soybean Seed Oil.

• Rajcan, I. - University of Guelph - Molecular Marker Mapping of Genes Controlling Isoflavone Levels in Soybean Seed.

• Rajcan, I. - University of Guelph - Potassium Fertilization Effects on Isoflavone Concentrations in Soybean.

• Rakshit*, S. - Iowa State University - Liquid Swine Manure Nitrogen Utilization Project.

• Raley, K.D. - The University of Tennessee - A Comparison of Russian and U.S. Soil Classification on Selected Chernozems of the Kursk Oblast, Russia.

• Raley*, K.D. - The University of Tennessee - The Assessment of Traditional Soil Classification Techniques versus Ground Penetrating Radar and Electromagnetic Inductance at Two Separate Sites on The Southern Mississippi Valley Silty Uplands.

• Ralston*, D.P.V. - North Dakota State University - Comparison of Three Zone Delineation Methods and their Impacts on Water Quality.

• Ralston-Hooper*, K.J. - Purdue University - Safety of Dithiopyr on Seedling Turf.

• Ramakrishnan, A. - Brigham Young University - A Genetic Map of Head Smut.

• Ramalho, M.A.P. - UFLA,Lavras,MG,Brazil - Genetic Variation for Silage Digestibility of Corn Inbred Lines and Hybrids.

• Raman, D.R. - The University of Tennessee - The Effect of Agricultural Antibiotics on Persistance of 17 beta-estradiol in Soil.

• Raman, D.R. - The University of Tennessee - The Effect of Agricultural Antibiotics on Persistance of 17 beta-estradiol in Soil.

• Ramaswani, B. - Indian Statistical Institute - Biotechnology, Policy Response and Governance.

• Ramberg, Jr., C. - Univ. Penn - Role of Ration Balancing in Dairy Farm Nutrient Management: Case Studies.

• Ramkrishnan, B.P. - Michigan State University - What Factors Are Important for Attaining Higher Yielding Corn.

• Ramkrishnan., P.B. - University of Florida. - Adapting CROGRO For Simulating Cotton.

• Rampazzo, N. - University of Agricultural Sciences Vienna (BOKU) - Spatial Distribution of Soil Erosion and Phosphorus Transport Within an Agricultural Used Watershed.

• Ranatunga*, T.D. - Alabama A and M University - Phosphatase Activity in Soils.

• Randall, G.W. - Univ. of Minnesota - Effect of Winter Application of Three Manure Sources on N Availability for Corn in Minnesota.

• Randall, G.W. - University of Minnesota - Comparison of Manure and Fertilizer Placement on Corn and Soybean Yields and Soil Test P.

• Randall, P.M. - US EPA - Sorption of Arsenite and Arsenate on a High Affinity Oxide: Macroscopic and Microscopic Studies.

• Randall*, G.W. - Univ. of Minnesota - How Can We Reduce Leaching and Denitrification Losses?

• Randel*, L. - Meyers and Associates - Citizen Scientist: Lobbying and the Scientific Community.

• Randolph, J.C. - Indiana University - Soil Carbon Stocks of a Temperate Deciduous Forest: Influence of Microclimatic, Edaphic, and Biotic Factors.

• Randolph, T.A. - Colorado State University - Status of Russian Wheat Aphid (RWA) - Resistant Feed Barley for Dryland Western U.S.

• Rands, J.E. - Brigham Young University - An Exception to the Rule: Iron-Stressed Maize Produces Phytosiderophore Continuously.

• Rands, J.E. - Brigham Young University - The effect of the bacteriacide, Micropur, on phytosiderophore release and K+ leakage from roots of iron-stressed maize.

• Ranells, N.N. - North CarolinaState University - Varietal effects of cereal rye on recovery of soil inorganic nitrogen.

• Ranells, N.N. - North Carolina St. Univ. - Nitrogen accumulation in forage crops receiving swine effluent and inorganic nitrogen.

• Ranells, N.N. - North Carolina State University - Detecting Forage Biomass and Nitrogen Concentration Using False Color Infrared Photography.

• Rangarajan, A. - University of Florida - Plotting Crop Scouting Paths with a Self-Organizing Feature Map.

• Ransom, M.D. - Kansas State University - Effects of thirty years of irrigation on the properties of semi-arid soils in Kansas.

• Ransom, M.D. - Kansas State University, Manhattan, KS - Developing a Carbon Accounting System for Agroecosystems.

• Ransom, M. - Kansas State University - Estimating Stocks of Soil Organic Carbon at Multiple Scales.

• Rao, I.M. - Centro Internacional de Agricultura Tropical - Changes in Soil Organic Matter and Phosphorus Fractions under Planted Fallows and a Crop Rotation on a Colombian Volcanic-Ash Soil.

• Rao, P.S.C. - Purdue University - Flow and transport in Subsurface-Drained Agricultural Fields.

• Rao, P.S.C. - Purdue University - Sorption and Transport of Hormonally Active Agents in Soils.

• Rao, P.S.C. - Purdue University - Electrostatic Sorption of Acidic Organic Chemicals by Variable-Charge Soils as a Function of Chemical and Soil Charge Properties.

• Rao, P.S.C. - Purdue University - Laboratory Assessment of Soil Flushing of Nonaqueous Phase Liquids with Ethyl Lactate and Limonene Solutions.

• Rao, P.S.C. - Purdue University - In-situ Oxygen Sensors for Use in Biotreatment of Fuel Oxygenates in Groundwater.

• Rao, P.S.C. - Purdue University - Fate of Tylosin in Aqueous Manure-Soil Systems.

• Rao, P.S.C. - Purdue University - Assessing the Mobility of Carbadox and Metabolites Through Soils: Batch Partitioning and Column Studies.

• Rao, R. - University of Florida - Optimizing nitrogen fertilizer practice to improve lychee flowering and yield.

• Rao, S.C. - USDA-ARS - Short-Duration Pigeonpea-A Potential Grain and Forage for Southern Plains.

• Raper, R.L. - USDA-ARS, National Soil Dynamics Lab, Auburn AL - Soil Carbon Correlation with Electrical Conductivity, Terrain Attributes, and Soil Map Unit for a Coastal Plain Field.

• Rashid*, A. - NARC, Islamabad, Pakistan - Challanges and Strategies of Dryland Agriculture in Pakistan.

• Rashid*, A. - NARC, Islamabad, Pakistan - Fertilizer Use in Pakistan's Dryland Agriculture: Requirement, Constraints and Options.

• Rashid*, A. - NARC, Islamabad, Pakistan - Boron Deficiency in Cotton in Calcareous Soils of Pakistan: Diagnosis, Spatial Distribution and Management.

• Rasmussen, C. - University of California, Davis - Potassium Fixation Potential Predicted from SSURGO Data in Soils of the San Joaquin Valley, California.

• Rasmussen, V.P. - Utah State University - Managing Protein in Spring Wheat with Aerial and Satellite Imagery.

• Rasmussen, V.P. - Utah State University - Wheat Stress and Reflectance.

• Rasmussen*, C. - University of California Davis - Mineralogical Control over Soil Organic Carbon Distribution in California Soil Developmental Sequences.

• Rathinasabapathi*, B. - University of Florida - Effect of Cd, Ni, Zn, and Pb on arsenic uptake by brake fern(Pteris vittata) in CCA contaminated soil.

• Raturi, S. - Rutgers, The State University of New Jersey - Spatial Variability of Water Flow Through Undisturbed Soil Columns.

• Raturi*, S. - Rutgers, The State University of New Jersey - Predicting Saturated Hydraulic Conductivity For Putting Green Root Zone Mixes.

• Raun, W.R. - Oklahoma State University - On-Farm Trials Using a Field-Scale, One Meter Resolution Variable Nitrogen Rate Applicator.

• Raun, W.R. - Oklahoma State University - The Society for Ancient Agricultural Knowledge.

• Raun, W.R. - Oklahoma State University - Pre-Season Nitrogen-Rich Strips and Response Index as a New Strategy for Fertilizer Management.

• Raun, W.R. - Oklahoma State University - Phosphorus Mobility, Enzyme Activity and Microbial Community in Manure-treated Soil.

• Raun, W.R. - Oklahoma State University - DGGE Analysis for Soil Bacterial Diversity.

• Raun, W.R. - Oklahoma State University - Reducing Aluminum Toxicity in Acid Soils with Animal Manure and Lime., Reducing Aluminum Toxicity in Acid Soils with Animal Manure and Lime., Reducing Aluminum Toxicity in Acid Soils with Animal Manure and Lime., Reducing Aluminum Toxicity in Acid Soils with Animal Manure and Lime.

• Raun, W.R. - Oklahoma State University - Dryland Winter Wheat Production Using Bed Planting Systems.

• Raun, W.R. - Oklahoma State University - Wheat Grain Yield Response to Fertilizer Nitrogen estimated Using a Spectral Response Index.

• Raun, W.R. - Oklahoma State University - Refining Topdress Nitrogen Applications Using a Response Index.

• Raun, W.R. - Oklahoma State University - Nitrogen Use Efficiency as Influenced by Tillage and Method of Ammonia Application.

• Raun, W.R. - Oklahoma State University - Use of Red and Green NDVI for Yield Prediction in Winter Wheat.

• Raun, W.R. - Oklahoma State University - Effect of Low Foliar Rates of Applied Phosphorus on Wheat Grain Yield .

• Ravenscroft, Jr., J.E. - US EPA - Evaluation of Long Term Lawn Care Programs on the Turfgrass Soil Microbial Community.

• Rawajfih, Z. - Jordan University of Science and Technology - Genesis and Morphology of Pedogenic Gypsum and other Sulfate Minerals, USA and Jordan.

• Rawls, W.J. - USDA-ARS - Use of Soil Survey Information for Determining Soil Hydraulic Properties.

• Rawls, W.J. - USDA-ARS, Beltsville, MD - The Additivity Model to Estimate Water Retention of Mineral Soils.

• Rawls, W.J. - USDA-ARS, Beltsville, MD - Effect of Soil Aggregate Size Distribution on Water Retention.

• Ray, I.M. - New Mexico State University, Las Cruces, NM - Comparison of S1 with Open-Pollination Progenies in Selecting for Forage Yield in Crested Wheatgrass.

• Rayburn, A.L. - University of Illinois - Consistency of Intraspecific Genome Size Variation in Soybean as Detected by Flow Cytometry.

• Rayburn, A.L. - University of Illinois - Assessing the Genotoxicity of Atrazine to Anuran Tadpoles.

• Rayburn, A.L. - University of Illinois - Flow Cytometric Analysis of Intraplant Nuclear DNA Content Variation Induced by Sticky Chromosomes.

• Rayburn, A.L. - University of Illinois - Comparing the Cytotoxicity of Food Additives to Agrochemicals.

• Rayburn, A.L. - University of Illinois - Comparing in vitro Toxicity of Agrochemicals Contaminating Reservoirs with Lake Management Herbicides.

• Razzaki, T. - University of Karachi - Thinopyrum elongatum Disomic Chromosome Addition Lines in Bread Wheat and Progress in Durum Wheat.

• Razzaki, T. - University of Karachi - Salt Tolerance Bread Wheats: Current Germplasm Status.

• Razzaki, T. - University of Karachi - Disomic Chromosome Addition Lines of Thinopyrum bessarabicum in Bread Wheat.

• Razzaki, T. - University of Karachi - New Wheat/Alien Chromosome Translocations: Production, Characterization and Stability.

• Read, J.C. - Texas A and M University - Soil Organic Matter Pools Under Different Crop Covers in Texas.

• Read, J.C. - Texas Agricultural Experiment Station - Effect of Row Spacing, Cultivar, and Growth Stage on Soybean Forage Yield and Quality.

• Read, J.J. - USDA-ARS, Mississippi State, MS - Nitrogen Deficiency Effects on Corn Photosynthesis and Hyperspectral Reflectance.

• Read, J.J. - USDA-ARS, Mississippi State, MS - Canopy Spectral Reflectance to Estimate Cotton Growth and Yield.

• Read*, J.J. - USDA-ARS, Mississippi State, MS - Yield and Fiber Quality of Cotton as Influenced by Nitrogen Nutrition.

• Reames, C. - Yakima Training Center, WA - Establishing Native Plants on Western Military Lands.

• Reaper, T. - Univ. of Arkansas Cooperative Extension Service - The influence of wheat straw management on double-cropped soybean germination and development.

• Reberg-Horton, C. - North Carolina State University - Varietal effects of cereal rye on recovery of soil inorganic nitrogen.

• Reddy, C.K. - Alabama A and M University - Conservation Tillage and Poultry Litter Effects on Cotton and Corn.

• Reddy, K.C. - Alabama A and M University - Tillage and Poultry Litter Effects on Soil Carbon and Nitrogen in North Alabama.

• Reddy, K.J. - Dept. Renewable Resources, University of Wyoming - Speciation of Selenium in Aqueous Systems.

• Reddy, K.J. - University of Wyoming - Kinetics of Pyrite Oxidation in the presence of Reducing Agents.

• Reddy, K.J. - University of Wyoming, Dept. of Renewable Resource - Distribution of Selenium in Kendrick Irrigation Project Waters in South-east Wyoming., Distribution of Selenium in Kendrick Irrigation Project Waters in South-east Wyoming.

• Reddy, K.N. - USDA-ARS, Stoneville, MS - Cover Crop, Tillage, and Herbicide Effects on Weeds, Soil Properties, Soil Microbial Populations, and Yield of Soybean in the Mississippi Delta.

• Reddy, K.N. - USDA-ARS, Stoneville, MS - Implications of Conservation Weed Management Practices on Soil Characteristics, Weed Control, and Crop Production.

• Reddy, K.N. - USDA-ARS, Stoneville, MS - Implications of Glyphosate Resistant Transgenic Soybeans on the Bradyrhizobium Japonicum Symbiosis.

• Reddy, K.R. - Soil and Water Science, University of Florida - Functional and Community Level Microbial Indicators of Nutrient Enrichment in Wetlands; a Mesocosm Scale Experiment.

• Reddy, K.R. - University of Florida - Water Quality Role of Wetlands in Florida Watersheds.

• Reddy, K.R. - University of Florida - Stable Isotopic Indicators of Plant Community Change in Everglades Wetland Soils.

• Reddy, K.R. - Mississippi State University - Changes in Hyperspectral Reflectance of Cotton Leaves Exposed to Enhanced Ultraviolet-B radiation and Carbondioxide.

• Reddy, K.R. - Mississippi State University - Yield and Fiber Quality of Cotton as Influenced by Nitrogen Nutrition.

• Reddy, K.R. - Mississippi State University - GOSSYM Simulation Analysis of Climate Change Impacts on Cotton Production.

• Reddy, K.R. - University of Florida, Gainesville,FL - Influence of Sediment Dredging on Phosphorus Flux Between Sediment and Overlying Water of a Shallow Subtropical Lake.

• Reddy, K.R. - University of Florida - Soil Phosphorus Forms in Wetland Soils from the Stormwater Treatment Areas of the Northern Everglades.

• Reddy, K.R. - Mississippi State University - Canopy Spectral Reflectance to Estimate Cotton Growth and Yield.

• Reddy, K.R. - University of Florida - Investigation of Phosphorus Forms and Transformations in Soil as Influenced by Hydrologic Changes in a Subtropical Freshwater Wetland.

• Reddy, K.R. - Mississippi State University, MS - Impacts of the Spatial Scale of Climate Scenarios on Cotton Production in the Southeastern USA.

• Reddy, K.R. - University of Florida - Effects of Surficial Mud Sediment Removal on Phosphorus Release into Lake Waters under Anaerobic and Aerobic Conditions.

• Reddy, K.R. - University of Florida - Temporal and Spatial Variability of Nutrient Fluxes from Sediment in the Lower St. Johns River

• Reddy, K.R. - University of Florida - Microbial Dynamics of Phosphorus in Wetlands.

• Reddy, K.R. - Mississippi State University - Acclimation to High Temperature in Groundnut (Arachis hypogaea L.).

• Reddy, M.R. - NC A and T State University - Spatial variability of soil nutrients (N and P) in Piedmont soils.

• Reddy, M.R. - NCAT State University, Greensboro, NC - Spatial Distribution Of Pesticides In North Carolina Rivers and Lakes.

• Reddy, V.R. - USDA-ARS, Beltsville, MD - Practical considerations in the design and analysis of controlled environment experiments.

• Reddy, V.R. - USDA-ARS, Beltsville, MD - Leaf and Whole Canopy Photosynthesis of Maize Grown under Elevated CO2 and Various Temperature Regimes.

• Reddy, V.R. - USDA-ARS, Beltsville, MD - 2DSPUD, a Two-dimensional Mechanistic Model of Potato Growth and Development.

• Reddy, V.R. - USDA-ARS Beltsville, MD - Effects of Elevated CO2 Concentration and Water Stress on Leaf Water Potential, Water Use and Root Growth of Cotton.

• Reddy, V.R. - USDA ARS Alterrnate Crops and Systems Laboratory - Biomass Production of Eastern Gamagrass Grown at Two Levels of Carbon Dioxide.

• Reddy, V.R. - ARS-USDA, Beltsville - Temperature and CO2 Effects on Eastern Gamagrass Photosynthetic Performance.

• Reddy*, K.J. - Dept. Renewable Resources, University of Wyoming. - Coalbed Methane Product Water Quality Across the Powder River Basin of Wyoming.

• Reddy*, K.R. - Mississippi State University - Nitrogen Deficiency Effects on Corn Photosynthesis and Hyperspectral Reflectance.

• Reddy*, K.R. - Mississippi State University - Changes in Hyperspectral Reflectance of Ageing and Senescing Cotton Leaves Exposed to Enhanced Ultraviolet-B Radiation and Carbon Dioxide.

• Reddy*, M. - SRI International - Geospatial Web-based 3D Visualization for Soil-Landscape Modeling.

• Redfearn, D.D. - Oklahoma State University - Fertilization of Tallgrass Prairie in Eastern Oklahoma Following Long-Term Hay Management.

• Redona, E. - Philippines Rice Research Institute (PhilRice) - Response of a Tropical Rice Hybrid and an Inbred Variety to Controlled Release and Conventional Prilled Urea in Nueva Ecija, Philippines.

• Redwine., S.M. - Michigan State University, East Lansing, MI - The Fate of Nitrogen Applied to a 10 Year Old Kentucky Bluegrass Stand.

• Reed, D.A. - National Environmental Trust - Carbon Sequestration Accounting: An Assessment of What is Needed for the Legislative Process.

• Reed, R.L. - Angelo State University - Seed and Forage Production of Strophostyles leiosperma and S. helvula Harvested at Three Heights.

• Reed, S. - USDA-ARS - Agrochemicals Transport in Calcareous Soils of South Florida.

• Reese, M.E. - WCROC/Univ. of MN, Morris, MN - Nitrogen Impacts on Legume Persistence and Pasture Productivity in Grass/Legume Pastures.

• Reetz, H.F. - Potash and Phosphate Institute - Should We Strive for Higher Yields?

• Reetz Jr., H.F. - Potash and Phosphate Institute - Analyzing Site-Specific Soil Test Data to Help Farmers Make Management Decisions.

• Reetz*, H.F. - Potash and Phosphate Institute - Linking the Pieces of Precision Farming Systems.

• Reetz*, H.F. - Potash and Phosphate Institute - Mapping the Information Network for Site-Specific Systems.

• Reeves, D.W. - USDA-ARS - Cotton Nitrogen Management for a High-Residue Conservation Tillage System.

• Reeves, D.W. - USDA-ARS, Auburn, AL - Relating Electrical Conductivity Mapping to Soil Properties from the World's Oldest Cotton Experiment.

• Reeves, D.W. - USDA-ARS, Auburn,AL - Management-dependent soil properties: Are they dependent in the short-term?

• Reeves, D.W. - USDA-ARS, National Soil Dynamics Lab, Auburn AL - Soil Carbon Correlation with Electrical Conductivity, Terrain Attributes, and Soil Map Unit for a Coastal Plain Field.

• Reeves, D.W. - USDA-ARS, Auburn, AL - Tillage and Poultry Litter Effects on Soil Carbon and Nitrogen in North Alabama.

• Reeves, J.B. - USDA ARS - Evaluation of Methods for Measuring Soil Carbon in Developing Countries.

• Reeves, M. - University of Florida - Distribution of Lead and Arsenic in Soils from Four Florida Cities.

• Reeves, M. - University of Florida - Considerations for determining anthropogenic background of arsenic in urban areas.

• Reeves, V.B. - CVM, FDA, Beltsville, MD - Comparison of Mid-Infrared, Near-Infrared and Dry Combustion for the Determination of Soil Organic- and Inorganic- C.

• Reeves*, D.W. - USDA-ARS, Auburn, AL - Tillage System/Row Spacing Effects on Cotton Potassium Requirement.

• REEVES, III, J.B. - AMBL, ANRI, ARS, USDA - What does P-31 NMR tell us about phosphorus in dairy manures?.

• Reeves, III*, J.B. - AMBL, ANRI, USDA, Beltsville, MD - Comparison of Mid-Infrared, Near-Infrared and Dry Combustion for the Determination of Soil Organic- and Inorganic- C.

• Regmi, A.P. - International Rice Research Institute - Integrated Crop Management to Enhance Productivity of Rice-Wheat System in Nepal.

• Regnier, E.E. - Ohio State University - Species Interactions With Quackgrass and Their Effect on Forage Production.

• Rehm, G. - University of Minnesota - Analyzing Yield Monitor Data to Help Farmers Make Management Decisions.

• Reich, P. - USDA-NRCS, Washington, DC - A Soil Taxonomy Map of Russia.

• Reich, P. - USDA-NRCS, Washington, D.C. - SoLIM: New Technology for the 21st Century Soil Survey.

• Reich, R. - Colorado State University - Site-Specific Nitrogen Management Zones: Utilization of Yield Map and Soil Properties.

• Reich, R. - Colorado State University - Relationship Between Soil Properties and Productivity Level Management Zones.

• Reichenbach, S.E. - University of Nebraska - The Geography of Drought In Nebraska--Patterns, Trends, and Impacts on Agriculture.

• Reicher, Z.J. - Purdue University - Use of Dazomet for Annual Bluegrass Control in Fairway Renovation.

• Reicher, Z.J. - Purdue University - Safety of Dithiopyr on Seedling Turf.

• Reicher*, Z.J. - Purdue University, West Lafayette, IN - Effects of Seeding Date on Bermudagrass and Zoysiagrass Establishment.

• Reichman*, R. - IIBR, Ness-Ziona, Israel - The Effects of Pressure Gradients on Measurement of Gas Flux with a Dynamic Chamber.

• Reicosky, D.C. - USDA-ARS, Morris, MN - Tillage and Wind Effects on CO2 Concentrations in Muck Soils.

• Reicosky, D. - USDA-ARS, Morris, MN - Residue of Corn Stover Ethanol Production as a Soil Amendment.

• Reid, W.S. - Cornell Univ. - Nutrient Management Software for the Tropics: NuMaSS.

• Reider*, C. - Rodale Institute, Kutztown, PA - On-farm Production of AM Fungus Inoculum.

• Reiter, M.S. - Auburn University - Cotton Nitrogen Management for a High-Residue Conservation Tillage System.

• Reith, P.E. - University of Florida - Ryegrass Selection for Dairy Operations in Florida.

• Reith, P.E. - University of Florida - Progress in Selecting Annual Ryegrass for Resistance to Gray Leaf Spot.

• Remund, K. - Monsanto Company - Gene Flow Studies to Optimize Containment of Regulated Products Produced in Corn.

• Remund*, K.M. - Monsanto - Pollen-Mediated Gene Flow in Maize as Influenced by Time and Distance.

• Ren, L. - China Agricultural University - Adsorption Characteristics of Atrazine in a Sandy Loamy Soil.

• Ren, T. - Chinese Academy of Sciences - Improvement of the Heat-Pulse Technique for Soil Water Content Measurement.

• Renganayaki, K. - Texas A+M University - Genetic Diversity Among Pentaploid Buffelgrass Accessions as Revealed by AFLP Markers.

• Renken, R.R. - University of Nebraska-Lincoln - Manure Phosphorus Concentration and Its Effects on Soil Chemical and Depth Phosphorus Distribution.

• Renken, R. - University of Nebraska - N and P Adsorption and Desorption on Ion Exchange Resins Under Freeze-Thaw or Wet-Dry Conditions.

• Renne, I.J. - University of Illinois - Allelopathic Potential of Tall Fescue on Native Prairie Plants of the Midwest, USA.

• Renschler, C.S. - University at Buffalo (SUNY), Buffalo, NY. - The Geo-spatial interface for the Water Erosion Prediction Project (GeoWEPP).

• Replogle, J.A. - USDA-ARS, Phoenix, AZ - Investigating the Mixing Concept for Phosphorus Loss in Furrow Irrigation.

• Resck, D.V.S. - Embrapa Cerrados-Brazil - An Estimate of Soil Organic Carbon Changes in Agricultural Ecosystems of Brazil.

• Retzel, E. - University of Minnesota - Integrating Biological Information: Evolving Data toward Agricultural Improvement.

• Reule, C.A. - USDA-ARS, Fort Collins,CO - Tillage System Effects On Nitrogen Requirements For Optimum Irrigated Corn Yields.

• Reve, W. - University of Florida - Selectivities of K/Ca and K/Pb Exchange in Two Tropical Soils.

• Revill*, K.L. - Stanford University - Competitive Reduction of U(VI) and Fe(III) by Iron Reducing Bacteria.

• Rew, T.J. - University of Florida - Analyses of GPR Signals to Distinguish Surface and Subsurface Diagnostic Horizons.

• Reynolds, C.M. - USA-CRREL, Hanover, NH - Effects of Plants and Fertilizer on the Remediation of Crude Oil-Contaminated Soil.

• Reynolds, W.C. - North Carolina State University - Hybrid Bermudagrasses Differ in their Establishment Rates and Growth Characteristics.

• Reynolds, W.D. - Agriculture and Agri-Food Canada, Harrow, Ontario - Mineralization of Nitrogen in a Clay Loam Soil Amended with Composts, Red Clover and Liquid Pig Manure.

• Reynolds, W.D. - Agriculture Canada, Harrow, ON - Phosphorus Losses in a Clay Loam Soil: Effects of Compost Additions and Controlled Drainage-Subirrigation.

• Reynolds*, W.D. - Agriculture and Agri-Food Canada, Harrow, ON - Impacts of Compost on Soil Quality and Corn Yield for a Clay Loam Soil.

• Reynolds., M.P. - CIMMYT - Evaluation of Oaxacan Wheat Landraces under moisture stress.

• Rhinhart, K. - Oregon State University - Nitrogen Management for Winter Malting Barley.

• Rhodes, G.A. - Texas A+M University - Forage Quality of Grain Sorghum Crop Residues.

• Rhoton, F.E. - U.S. Department of Agriculture - Carbon sequestration in reservoirs: fate of eroded soil organic carbon during transport and burial.

• Rhoton*, F.E. - USDA-ARS, Oxford, MS - Flocculation of Clay Suspensions by Natural Ferrihydrite.

• Rhoton*, F.E. - USDA-ARS, Oxford, MS - A Pedon Approach to Organic Carbon Distribution: Influence of Landscape Position and Climatic Conditions.

• Rhue, R.D. - University of Florida, Gainesville, FL. - Energetics of Arsenic (V) Sorption on Amorphous Aluminum Hydroxides Determined by Flow Calorimetry.

• Rhue, R.D. - University of Florida - Depth Evaluation of P Loading in Leaching Assessment of Manure-Amended Soils.

• Rhue, R.D. - University of Florida - Selectivities of K/Ca and K/Pb Exchange in Two Tropical Soils.

• Rhue, R.D. - University of Florida - Phosphorus Sorption/Desorption in Brazilian Oxisols: Effects of pH and Organic Anions on P Bioavailability.

• Rhykerd, R.L. - Illinois State University - Agricultural Production and Profit: Student Contest.

• Rhykerd, R.L. - Illinois State University - Survival of Plants in Soil Contaminated with Weathered Crude Oil.

• Rhykerd, R. - Dept. Agriculture, Illinois State University,Normal, IL - Phytoremediation of land contaminated by recalcitrant contaminants using Eastern gamagrass and Annual ryegrass.

• Ribaut, J.M. - CIMMYT INT. - Cross-performance of Subtropical Maize Recombinant Inbred Lines Derived from Segregating Populations.

• Ribaut, J.M. - CIMMYT - Heterosis Prediction Based on Genetic Distance Using DNA Molecular Data in Tropical and Subtropical Maize Germplasm.

• Ribeiro, V.D. - Ind. Romagnole, PR, Brazil - Removal of Fe and Zn from strong acid industrial residues with iron oxides.

• Rice, C.P. - USDA-ARS, Belstville, MD - Temporal Variability Of Agrochemicals In A Riparian Wetland.

• Rice, C.W. - Kansas State University, Manhattan, KS - Developing Reliable Methods to Estimate Changes in Soil C in US and Canadian Agroecosystems.

• Rice, C.W. - Kansas State University, Manhattan, KS - Spatial Relationships of Selected Above-and Below-Ground Carbon in a Peten, Guatemala Tropical Forest.

• Rice, C.W. - Dept. of Agronomy, Kansas State University - Measurement and modeling of soil surface CO2 flux in agroecosystems of the Great Plains.

• Rice, C.W. - Kansas State University - Tillage and Fertilizer Placement Effects on N Distribution in Soil, Runoff, and Plants.

• Rice, C.W. - Kansas State Univ., Manhattan, KS - Partitioning Root, Rhizosphere and Non-rhizosphere Respiration during Wheat Growth.

• Rice, C.W. - Kansas State University - Aggregate C and N as Affected by Tillage and Manure.

• Rice, C.W. - Dept. of Agronomy, Kansas State University, Manhattan, KS - Effects of Crop Rotation and Tillage on C and N dynamics and Aggregate Stability in Eastern Kansas.

• Rice, J.A. - South Dakota State University, Brookings, SD - SAXS study of humic acid and surfactant complexes.

• Rice, J.M. - North Carolina State Univ. - Development of a Total Manure Treatment System Alternative to Lagoon-Sprayfield Technology in North Carolina.

• Rice, P.J. - USDA-ARS, St. Paul, MN - Sorption-desorption of isoxaflutole and a diketonitrile degradate on organoclays.

• RICE, R.W. - Univeristy of Florida - Phosphorus Load Reductions Under Best Management Practices for Cropping Systems in the Everglades Agricultural Area.

• Rice, W.A. - Agriculture and Agri-Food Canada - Endophytic Rhizobia in Cereal and Oilseed Crops.

• Rice*, C.W. - Kansas State University, Manhattan, KS - Developing a Carbon Accounting System for Agroecosystems.

• Rice*, T.J. - Cal Poly, San Luis Obispo - Expanding Outreach and Awareness.

• Rich, J.J. - Oregon State University - Changes in Nitrogen Cycling in Reciprocally Transplanted Soil from Meadows and Forests.

• Richard, T.L. - Iowa State University - Timing of Application and Composting Affect Corn Yield Response to Solid Swine Manure.

• Richards, B.K. - Cornell University - Effect of Microbial Activity, pH and Matrix of the Porous Media on the Trace Elements released from anaerobically digested Sewage Sludge.

• Richards, G.P. - Australian Greenhouse Office - Estimating Changes in Soil Carbon Resulting from Changes in Land Use in Australia.

• Richards, G.P. - National Carbon Accounting System, Australian Greenhouse Office - Prediction of carbon turnover in forest litter and soil using the FullCAM model.

• Richards., C.M. - National Center for Genetic Resources Preservation - Genetic erosion and the consequences of captive breeding programs on wild germplasm.

• Richardson, A.G. - Mississippi State University - GOSSYM Simulation Analysis of Climate Change Impacts on Cotton Production.

• Richardson, J.L. - Soil Science, North Dakota State Univ - Fire Induced Repellence in the North Dakota Badlands: Initial Year Observations.

• Richardson, J.L. - North Dakota State Univ. - Horizon Formation and Carbon Sequestration in Developing Soils of Created Wetlands.

• Richardson, M.D. - University of Arkansas - Quantifying Turfgrass Parameters Using Digital Image Analysis.

• Richardson, M.D. - University of Arkansas - Predicting Nitrogen Content of Turfgrasses Using Digital Image Analysis.

• Richardson , C.J. - Duke University - Selection of Wetland Restoration Sites in Rural Watersheds to Improve Water Quality.

• Richert, B.R. - Purdue University - Phosphorus Source Impacts on Soil Test Phosphorus Following Incubation.

• Richmond, B. - Indiana Army National Guard, Camp Atterbury, IN - Environmental Research and Demonstration at Camp Atterbury, Indiana.

• Richmond, B. - Camp Atterbury - Tracking Vehicles To Assess Training Impacts During Field Exercises.

• Richmond, B. - Camp Atterbury - Summarization of Military Vehicular Fugitive Dust for Two Installations Studies.

• Richmond, B. - Camp Atterbury - Within Vehicle Track Vegetation Recovery Rates As A Function Of Level Of Disturbance.

• Richter, D.D. - Duke University - Pedologic, historic, and contemporary soil change: a call for a network of long-term soil-ecosystem experiments.

• Richter, D.D. - Duke University - Changes of Soil-Water Chemistry and Mineral Weathering by Elevated CO2 in Three Soils in The Piedmont of North Carolina.

• Richter, D.D. - Duke University - Ecological Controls on Carbon Dynamics in Fire-Disturbed Boreal Forests: Are Northern Soils a net Source of Carbon after Disturbance?

• Rickerl, D.H. - SDSU, Brookings, SD 57007 - Wetland Delineation Methods in the Prairie Pothole Region.

• Rickerl*, D.H. - SDSU, Brookings, SD 57007 - Developing Global Awareness.

• Ricketts, J. - University of Florida - Planting Seeds of Change: Developing a Critical Thinking Instructional Model and Skills Assessment Instrument for Plant Biotechnology.

• Ricks, D.K. - Kansas State University - Effects of thirty years of irrigation on the properties of semi-arid soils in Kansas.

• Riday, H. - Iowa State University - Heterotic Performance of a Broad Range of Sativa-Falcata Hybrids.

• Rieck, J.R. - Clemson University - Mowing Height, Fertility, and Biostimulant Effects on the Root Development of 'TifEagle'.

• Riedell, W.E. - USDA-ARS, Brookings, SD - Remote Sensing of Barley Yellow Dwarf Virus and Wheat Streak Mosaic in Field-Grown Winter Wheat.

• Riedell, W.E. - UDSA-ARS, Brookings, SD - Soybean Growth Response to Varying Nitrogen Rates and Source.

• Rieke, P.E. - Michigan State University, Retired - Evaluation of Long Term Lawn Care Programs on the Turfgrass Soil Microbial Community.

• Riera-Lizarazu, O. - Oregon State University - Localizing The Species Cytoplasm Specific Gene by Radiation Hybrid Mapping in Wheat.

• Riera-Lizarazu, O. - Oregon State University - Evidence for Reciprocal Hybridization Between Aegilops tauschii and Ae. markgrafii in the Formation of Jointed Goatgrass (Ae. cylindrica).

• Riera-Lizarazu*, O. - Oregon State University - Nuclear and Cytoplasmic Diversity of Pacific Northwest Wheat Germplasm.

• Ries, R.E. - USDA-ARS, Mandan, ND - Are the Number of Extreme Precipitation Events Increasing at the Northern Great Plains Research Laboratory?

• Ries, S.B. - UC Riverside - The Effect of Different Volumes of Composted Green Waste Soil Amendment on Bermudagrass Turf.

• Riese, J.M. - Iowa State University - Development and Verification of a Lagrangian Model for Pollen Dispersion.

• Riese, J. - Iowa State University - Predicting Pollen Production, Dispersal, and Outcrossing in Maize.

• Rieseberg, L. - Indiana University - Genetics and the Origin of the Domesticated Sunflower.

• Rieseberg, L. - Indiana University - The Compositae Genome Project.

• Rieseberg, L. - Indiana University - Gene Flow from Transgenic Crops to Wild and Weedy Relatives: When Is It a Problem?

• Rife*, C.L. - Kansas State University - Variability in Vernalization Requirement of Oilseed Rape.

• Riggle, J. - University of Idaho - Kinetic and static conductance measurements of humic acid solutions.

• Riha, S.J. - Cornell University - Cultural Practices, Water Relations, and Productivity in the Rice-Wheat System of the Kathmandu Valley.

• Rincon-Sanchez *, F. - UAAAN, Buenavista, Saltillo, Coahuila, Mexico. - Genetic Potential of Locally Adapted Maize Populations and Participatory Crop Improvement for Rainfall Environments.

• Rines, H.W. - USDA-ARS - Chromosomal Distribution of Maize Repetitive Sequences.

• Riordan, T.P. - University of Nebraska-Lincoln - Overseeding Buffalograss Turf With Fine Fescues.

• Rios, B.G. - University of Illinois - Allelopathic Potential of Tall Fescue on Native Prairie Plants of the Midwest, USA.

• Rios, C.M. - Michigan State University - Nitrogen in Soil Water and Ground Water below Landscape Nursery Crops, Fallow Fields and Forests.

• Risch, A.C. - Swiss Federal Research Institute WSL - Below ground carbon and nutrient distribution in unmanaged subalpine conifer forests in the Central European Alps.

• Risch*, A.C. - Swiss Federal Research Institute WSL - Importance of red wood ants (Formica rufa group) in European forest soils.

• Rishel, K. - Shepherd College, Institute for Env. Studies - A comparison to soil survey data and an estimate of the variability in field and laboratory data of a hillslope transect crossing two mapping units of a Ultic Hapludalf and a Typic Hapludult.

• Ritchey*, K.D. - USDA-ARS, Beaver, WV - Reduction in acidity parameters 6 years after surface application of Ca-containing by-products.

• Ritchie, G.L. - Utah State University - Wheat Stress and Reflectance.

• Ritchie, G.L. - Utah State University - Managing Protein in Spring Wheat with Aerial and Satellite Imagery.

• Ritchie, J.C. - USDA ARS Hydrology Laboratory - Biomass Production of Eastern Gamagrass Grown at Two Levels of Carbon Dioxide.

• Ritchie, J.C. - ARS-USDA, Beltsville, MD - Temperature and CO2 Effects on Eastern Gamagrass Photosynthetic Performance.

• Ritchie, J.T. - University of Florida - A modular approach to modeling phosphorous in crop systems.

• Ritchie*, J.T. - Michigan State University - What Factors Are Important for Attaining Higher Yielding Corn.

• Ritchie-Posavatz, N.J. - Oregon State University - Changes in Microbial Communities in Reciprocally Transplanted Soil from Meadows and Forests.

• Rivas*, D.A. - Texas A and M University, College Station, TX. - Properties, classification, and erosion of volcanic ash derived soils in tropical steeplands of Nicaragua, Central America.

• Riveland, N.R. - North Dakota State University - Canola Dormant Seeding in North Dakota.

• Robarge, W.P. - North Carolina State University - Degree of Phosphorus Saturation of Selected Soils in North Carolina.

• Robbins, R.T. - University of Arkansas - Plant-parasitic Nematodes Associated with Switchgrass Grown for Biofuel in the South Central United States.

• Roberson, G.T. - North Carolina State University - Variable-Rate Herbicide Application for Precision Weed Management.

• Roberson, T. - University of Wisconsin-Madison - Phosphorus Losses from Alfalfa and Grasses after Freezing or Drying.

• Robert, P.C. - University of Minnesota - Relationship between Spatial Variability of Soil Compaction and Corn Yield.

• Robert, P.C. - University of Minnesota, St. Paul, MN - Spatial Variation in Corn Grain Quality as expressed by Gelatinization Properties.

• Robert, P.C. - University of Minnesota - Impact of Planting Speed on Corn Stand Establishment and Grain Yield: On-farm research by Grower Learning Groups.

• Robert*, P.C. - University of Minnesota - Site-specific strategies for nutrient management in plantation-based oil palm: An Indonesian perspective.

• Roberts, C.A. - University of Missouri, Columbia, MO - Chitinase in Birdsfoot Trefoil.

• Roberts, C.A. - University of Missouri-Columbia - Classifier Development of Near Infrared Spectroscopy Derived Data to Determine Soybean Cyst Nematode Resistance.

• Roberts, D.P. - USDA-ARS, Beltsville, MD - Microbial Community Structure and the Rhizosphere Effect.

• Roberts, S.D. - Mississippi State University - Accumulation of N and P in Tree Biomass Following Poultry Litter Application.

• Roberts, S.D. - Mississippi State University - Influence of Prescribed Fire on Nitrogen Dynamics in Mid-Rotation Loblolly Pine Plantations.

• Roberts*, T.L. - Oklahoma State University - Measurement of Beef, Poultry, and Swine Manure Composition by Near-Infrared Spectroscopy.

• Robertson, G.K. - McNeil Consulting - Evaluation of Variable Seeding and Nitrogen Rates for Corn.

• Robertson, G.P. - Kellogg Biological Station - Threshold Responses of Nitrous Oxide Flux to Added N in Intensively Managed Ecosystems.

• Robertson, G.P. - Michigan State University - Removal of Bacteriophage from Aqueous Systems by An Anionic Clay.

• Robertson, G.P. - Michigan State University - Methane Oxidation in Agricultural Soils: A Comparison Between Conventional and Organic Cropping Systems.

• Robertson, J.A. - University of Alberta - Dynamics of C, N, P in N-15 Labeled Soil from the Breton Classical Plots under Laboratory Conditions.

• Robertson*, G.P. - Michigan State University - Organic matter quality and aggregate contributions to carbon storage along a management intensity gradient.

• Robichaud, P.R. - USDA-FS, Rocky Mt. Research Station, Moscow, ID - Another Burning Question: Is Erosion After Fires Bad?

• Robinson, C.W. - Tennessee Technological University - Nitrogen and Phosphorus Removal from Runoff in a Subsurface Flow Constructed Wetland.

• Robinson, D.A. - U.S. Salinity Laboratory, Riverside, CA - Methods of Quantifying Geometry at the Pore Scale in Soils.

• Robinson, R.C. - Oklahoma Cooperative Extension Service - An Ag Educator's Perspective of Collecting Impact Assessment Information.

• Robinson, S.J. - Clemson University - Runoff and Sediment Losses from a Paired Field Demonstration in the Coastal Plains.

• Robinson, S.J. - Clemson University - Rebuilding Soil Organic Carbon Contents In Coastal Plain Soils Using Innovative Management Practices.

• Robinson*, D.A. - USDA-ARS, Riverside, CA - Pore Scale Modeling and Measurement of the Dielectric Properties of Unsaturated Porous Media.

• Roche, D. - Utah State University - Yield potential of spring barley lines in water-limiting conditions.

• Roche*, D. - Utah State University - Predicting value of isotope discrimination ratios for yield potential in water-limiting conditions of spring barley.

• Rocheford, T.R. - University of Illinois - QTL Associated with Maize Kernel Traits among Illinois High Oil X B73 Backcross-Derived Lines.

• Rocheford, T. - Univ. of IL - Evaluation of Near-Isogenic lines for QTL for oil concentration in Maize.

• Rochette, E.A. - University of New Hampshire - A Convenient MTBE Analysis Method and its Application for Soil and Water Samples.

• Rochette, P. - Agriculture and Agri-Food Canada, Ste. Foy - Changes in Soil Organic Matter and Biogenic Gas Production after Plowing a Soil under Long-term No-till.

• Rochette, P. - AAFC, Ste-Foy, QC, Canada - Annual Bluegrass and Creeping Bentgrass Responses to Contrasting O2 and CO2 Levels at Two Near-Freezing Temperatures.

• Rochette, P. - Agriculture and Agri-Food Canada - Canada's National Carbon and Greenhouse Gas Accounting and Verification System.

• Rock, S.A. - US Environmental Protection Agency - Regulating Phytoremediation of Soil and Sediments.

• Rock, S.A. - USEPA NRMRL - Phyto-Engineering to Remediate PAH and PCB Contaminated Dredged Material.

• Rodgers, R. - Kansas Dept. Wildlife and Parks - Post-Harvest Weed Control in a Wheat-Fallow Rotation.

• Rodriguez, V.V. - University of Illinois, Urbana-Champaign - Soybean Root Growth Under Elevated CO2 Concentration in the Field.

• Rodriguez, V.V. - University of Illinois - Sampling Soybean Roots: A Comparison of Excavation and Coring Methods.

• Rodriguez-Monsivais, J. - Universidad Autonoma de Nuevo Leon - Growth and Development of the Grain Sorghum Embryo.

• Roebke*, T. - Monsanto - Pollen Mediated Gene Flow in Corn.

• Roemer, R.L. - University of Idaho - Alfalfa Seeding Rate Effects on Forage Quality.

• Roering, J.J. - University of Oregon - Processes and Rates of Soil Creep on Hillslopes: Calibration of Diffusivity Using Tephra Stratigraphy and Dispersion.

• Rog*, C.J. - Sand Creek Consultants, Inc. - Phytoremediation: Some Unique Challenges in Obtaining Regulatory Approval.

• Rogers, H.H. - USDA-ARS, Auburn, AL - Effects of Elevated Atmospheric CO2 on Nitrogen and Carbon Cycling in a Model Longleaf Pine Community.

• Rogers, M.T. - University of Arizona - Irrigation Timing Affects Test Weight of Low Input Barley in Arizona.

• Rogers III, J. - Michigan State University - A Method for Determining Lateral Shear Strength in Turf.

• Rogers, III, J.N. - Michigan State University - An Introduction to the Cady Traffic Simulator.

• Roget*, D.K. - CSIRO Land and Water - Temporal Dynamics of Plant Specific Microbial Functions and Critical Periods of Biological Activity in Southern Australian Cropping Regions.

• Roggenbuck, R.M. - University of Minnesota, St. Paul, MN - Spatial Variation in Corn Grain Quality as expressed by Gelatinization Properties.

• Rogis*, C.J. - Iowa State University - Stratification and Gibberellic Acid Effects on Seed Dormancy in Eastern Gamagrass.

• Rogovska, N. - Iowa State University - Regionalizing Corn Yield Responses to Nitrogen Fertilization within Fields.

• Rojas, J.I. - University of Georgia - Impacting Retention Through an Academic Counseling Program.

• Rokey, R.R. - USDA, ARS, U.S. Water Conservation Laboratory - Frost-induced changes in spectral characteristics of of grain sorghum.

• Rolong, N.A. - USDA-NRCS, Marfa, TX - Secondary Silica in Soils of West Texas.

• Rolston, D.E. - UCD, Davis, CA - The Effects of Pressure Gradients on Measurement of Gas Flux with a Dynamic Chamber.

• Rolston, D.E. - University of California, Davis - COMPARISON OF NAPHTHALENE DIFFUSION AND NONEQUILIBIRUM ADSORPTION-DESORPTION EXPERIMENTS.

• Rolston, D.E. - University of California, Davis - Biodegradation of Perchlorate by Microbial Communities in Soil.

• Rolston, D.E. - University of California, Davis - Unified Model for Solute and Gas Diffusivity in Unsaturated Soil.

• Romkens, M.J.M. - USDA-ARS-NSL, Oxford, MS - A Phenomenological Description of Granular Gravity Flow.

• Romkens, M.J.M. - USDA-ARS, Oxford, MS - Flocculation of Clay Suspensions by Natural Ferrihydrite.

• Romkens, M.J. - USDA-ARS-NSL, Oxford, MS - Structural and Cultural Effects on Oxbow Lake Water Quality.

• Roncoli, C. - University of Georgia, Athens, GA - West African Farmer Perspectives on Soil Management Practices with Carbon Sequestration Potential.

• RONDON*, M.A. - CIAT - Carbon Stocks in Soils from Complex Agroforestry Systems in the Amazon.

• Rong, J.K. - University of Georgia - Crop productivity and Wright's adaptive landscape: Is cotton near an adaptive peak?

• Rong, J. - University of Georgia - Development of EST Based PCR Markers in Cotton.

• Roodsari*, R. - University of Maryland, College Park - Field-scale Monitoring and Simulation of the Overland Transport of Bromide and Pathogens.

• Rook, A.J. - IGER - Intake and Dietary Choices by Grazing Ruminants: Effects of Time of Day and Water Soluble Carbohydrate Content of Herbage.

• Rooney, D.J. - Earth Information Technologies - Underground Truthing? - Seeing is Believing.

• Rooney, L.W. - Texas A and M University, TX - Diallel analysis of single cross hybrids among white QPM inbreds.

• Rooney, W.L. - Texas A+M University - Forage Quality of Grain Sorghum Crop Residues.

• Roope, B. - Potato Farmer - Integrating a Winter Rapeseed Cover Crop into a Barley-Potato Rotation.

• Roos, R.C. - DFSNW, Richland, WA - Measuring Recharge with a Water-Flux Meter.

• Rosas, V. - CIMMYT - Aegilops ovata Syn. Aegilops geniculata: Cytogenetics of Hybrids with Wheat, its Complete and Partial Amphiploids.

• Rosas, V. - CIMMYT - Thinopyrum elongatum Disomic Chromosome Addition Lines in Bread Wheat and Progress in Durum Wheat.

• Rosas*, V. - CIMMYT - Cytogenetics of Amphiploids Between Various Wheat and Triticeae Species.

• Rosas*, V. - CIMMYT - Cytogenetics of Backcross I Self-fertile Derivatives Involving Wheat and Perennial Triticeae Species.

• Rose, M.L. - Oklahoma State University - Fertilization of Tallgrass Prairie in Eastern Oklahoma Following Long-Term Hay Management.

• Rose*, K.L. - Regional Water Quality Control Board, Riverside,CA - Stable Isotope Investigation of Water Sources for Forest Vegetation on Thin Soils over Weathered Bedrock.

• Rose-Fricker, C.A. - Pure Seed Testing, Inc. - Performance of Kentucky Bluegrasses Mowed Below 2 cm in Eastern North Carolina.

• Rosen, C.J. - University of Minnesota - Effect of Suagrbeet Processing By-products on Wheat Yield, Nitrogen Mineralization, and Runoff Water Quality.

• Rosen, C.J. - University of Minnesota - Immobilization of soluble phosphorus in wastewater-irrigated soil using water treatment residue and chemical amendments.

• Rosenbaum, E.W. - Monsanto - Pollen Mediated Gene Flow in Canola.

• Rosenbaum*, E.W. - Monsanto - Pollen Mediated Gene Flow in Corn.

• Rosenberg, N.J. - Joint Global Change Research Institute - Modeling agricultural soil C sequestration on global scales.

• Rosenfeld, P. - Komex H2O Science - California Coastal Sage and Scrub Restoration Using Biosolids Compost.

• Rosenow, D. - Texas Agricultural Experiment Station - Sorghum Diversity for Germination and Emergence under Cool Conditions.

• Rosenthal, W. - Blackland Research Center/Texas Agricultural Experiment Station - Simulation of Brush Removal Within an Urban Watershed in Texas.

• Rosenzweig*, C.E. - NASA Goddard Institute for Space Studies - Effects of Climate Variability and Change Scenarios on CERES-Maize and SOYGRO.

• Roskamp, G.K. - Western Illinois University - Preemergence Herbicide Screening for Cuphea.

• Ross, C.N. - Natural Resources Conservation Service - Nitrogen, phosphorus and cation concentrations in a fine-loamy, carbonatic, mesic fluventic calciudoll A horizon encroached upon by Typha latifolia.

• Ross, C.W. - Landcare Research New Zealand Limited, CRI - Scanning electron micrographs of polyacrylamide-treated soil in irrigation furrows.

• Ross, D.S. - University of Vermont - Characterizing Forested Watershed Nitrification Potential with 24-hour Rate Measurements.

• Ross, L. - California Department of Pesticide Regulation - Dormant Season Organophosphate Use in California Almonds.

• Ross, S. - Dakota Grasslands, USFS-USDA, Bismarck,ND - Fire Induced Repellence in the North Dakota Badlands: Initial Year Observations.

• Ross*, S.M. - University of Alberta - Intercropping Berseem Clover with Barley, Oat or Triticale.

• Rosseto, F.A.A. - Universidade de Sao Paulo - ESALQ, Brazil - Forage yield and utilization efficiency of 'Tanzania' guineagrass and 'Guacu' elephantgrass pastures under rotational stocking.

• Rossnagel, B. - University of Saskatchewan, Saskatoon, SK - Quantitative Trait Loci Associated with Protein and Oil Content of Cultivated Oat.

• Roth, G.W. - Penn State University - Performance of Bt Corn Hybrids, their Near Isolines, and Leading Corn Hybrids in Pennsylvania and Maryland.

• Roth*, G.W. - Penn State University - Starter Fertilizers for Corn on High P Soils in Pennsylvania.

• Rothe, A. - University Stuttgart-Hohenheim, Germany - Functional Diversity of Microbial Communities in Forest Soils in Response to Airborne Lignite-Derived Depositions.

• Rottinghaus, G.E. - University of Missouri-Columbia - Genotype by Environmental Interactions for Isoflavones and Sapponins in Soybean.

• Rounds*, E.W. - Oklahoma State University - Aphid population and feeding time required to transmit barley yellow dwarf virus at selected growth stages of wheat.

• Rouquette, Jr, F.M. - Texas Agricultural Experiment Station - Virus Disease Tolerance in Arrowleaf Clover.

• Rouse, R.E. - Univ. of Florida - Phosphorus/Potassium Soil Test Calibration and Effects on Citrus Tree Growth.

• Rowe, D.E. - USDA, ARS - Nutrient Uptake by Warm Season Annual Grasses and Common Bermudagrass Fertilized with Swine Waste.

• Rowe, D.E. - USDA-ARS, Mississippi State, MS - Effects of Broiler Litter Application Relative to Commercial Fertilizer on Soybean Growth, Yield, and Risidual Soil N.

• Rowe, D.E. - USDA-ARS, Mississippi State, MS - Effect of Soil Type and Temperature on Phosphorus Dynamics in Soils Treated with Broiler Litter.

• Rowe, D.E. - USDA-ARS, Mississippi State, MS. - Survival of Salmonella typhimurium in four soils at different levels of water activity.

• Rowe, D.E. - USDA-ARS, Mississippi State - Survival of Salmonella typhimurium in four soil microcosms as affected by soil type and incubation temperature.

• Rowe, S.L. - Louisiana State Univ. - Identification of True Hybrids in Smooth Cordgrass Using Molecular Markers.

• Rowe , D.E. - USDA-ARS - Runoff Quality from Bermudagrass Plots Treated with Poultry Litter .

• Rowe*, D.E. - USDA-ARS, Mississippi State, MS - Management of Winter Forages to Extract Manure Soil Nutrients.

• Rowland*, D.L. - USDA-ARS, NPRL, Dawson, GA - Examining Peanut Water Use and Water-use Efficiency Under Different Irrigation Environments.

• Roy, J.L. - University of Saskatchewan - Influence of petroleum contamination on microbial communities in soil.

• Royer, T.V. - University of Illinois - Recent Nitrogen Mass Balances in the Midwest Cornbelt.

• Roygard, J. - Horizons.mw, New Zealand - Annual Grain Yield and Net Return Variation Among Three Crop Rotations in the Virginia Coastal Plain.

• Ruan, H.D. - Purdue University - Mineral Precipitates Responsible for Septic System Failure in Coarse-Textured Soils.

• Ruan, H. - Purdue University - Synchrotron Micro X-ray Diffraction Analysis of Soil Materials.

• Ruan*, H.D. - Purdue University - Spatial Relationships between Metals and Microorganisms in a Contaminated Soil Materials.

• Rubilar*, R. - North Carolina State University - Productivity of Second Rotation Loblolly Pine Plantations in Response to Intensive Culture.

• Ruckle, J.M. - USDA-ARS, Beaver, WV - Production and Nutritive Value of Orchardgrass Along a Gradient From Open Pasture to Woodland.

• Ruda, F.J. - Texas A+M University - A PCR-Based Method for Quantifying Apomixis in Buffelgrass.

• Rudd, R.D. - University of Florida - Planting Seeds of Change: Developing a Critical Thinking Instructional Model and Skills Assessment Instrument for Plant Biotechnology.

• Ruemmele, B.A. - University of Rhode Island, Kingston, RI 02881 - Production of Transgenic Creeping Bentgrass for Fungal Disease Resistance.

• Ruffo*, M.L. - University of Illinois - Use of rye as a catch crop in a corn/soybean rotation: rye nitrogen uptake and soybean yield.

• Rufty, T.W. - North Carolina State University - The Role of Weeds in Competition.

• Rufty, T.W. - North Carolina State University - Soil Inorganic Nitrogen Under Fertilized Bermudagrass Turf.

• Rufty, Jr., T.W. - North Carolina State University - Differential Aluminum Sensitivity Among Plant Species.

• Ruiz-Torres, N.A. - UAAAN, Buenavista, Saltillo, Coahuila, Mexico. - Genetic Potential of Locally Adapted Maize Populations and Participatory Crop Improvement for Rainfall Environments.

• Rund, Q.B. - PAQ Interactive - Analyzing Site-Specific Soil Test Data to Help Farmers Make Management Decisions.

• Rund, Q.B. - PAQ Interactive - Linking the Pieces of Precision Farming Systems.

• Rund, Q.B. - PAQ Interactive - Mapping the Information Network for Site-Specific Systems.

• Runge*, E.C.A. - Texas AM University, Soil and Crop Sciences Dept. - Forecasting Corn Yield for the Corn Belt States Using a Water Supply and Demand Model.

• Runion, G.B. - USDA-ARS NSDL, Auburn, AL - A Hydraulic Soil Coring System For Soil Carbon-Root Studies.

• Runion, G.B. - USDA-ARS, Auburn, AL - Effects of Elevated Atmospheric CO2 on Nitrogen and Carbon Cycling in a Model Longleaf Pine Community.

• Rupert, T. - AAFC, Greenhouse and Processing Crops Research Cen - Mechanical Damage of Seed and its Genetic control in Common Bean.

• Rush, C.M. - Texas A M Univ. - Water Stress and Take-all of Wheat in Two Closely-Related Genotypes Different in Drought and Greenbug Resistance.

• Rush, D. - Advanta Seeds Pacific - Selection for Dehydration Avoidance Mechanisms in Tall Fescue and Perennial Ryegrass.

• Rusk*, R.E. - Iowa State University - Nitrogen Mineralization Rates when Legume Green Manures are Amended with Composted Swine Manure.

• Russ, A.L. - USDA-ARS, Beltsville, MD - Corn Leaf Chlorophyll Status from Hyperspectral Images.

• Russell, J.R. - Iowa State University - Grazing Management Systems to Minimize Phosphorus Losses from Upland Pastures.

• Russell, J.R. - Iowa State University - Stream bank erosion along different land-use practices with an emphasis on different grazing practices.

• Russell-Anelli, J.M. - University of Maryland, Baltimore County - Urban Context of Abbreviated and Physically Disturbed Soil Profiles and Characteristics in the Baltimore Metropolitan Region.

• Russelle, M.P. - USDA-ARS, St. Paul, MN - Managing Legumes to Reduce Excess Nitrogen on Dairy Farms.

• Russelle, M.P. - USDA-ARS, St. Paul, MN - Leaching Losses Of Nitrogen From Stockpiled Dairy Manure.

• Russin, J.S. - Southern Illinois University, Carbondale - Response of Soybean Sudden Death Syndrome to Deep Tillage Practices.

• Russo*, A.S. - University of Tennessee at Martin - Nutrient Response of Sediments in Reelfoot Lake Tennessee after Rehydration.

• Russom, C.L. - U.S. Environmental Protection Agency - Deriving Plant and Soil Invertebrate Ecological Soil Screening Levels (Eco-SSLs) for Ecological Risk Assessment.

• Rustad, L.E. - USDA Forest Service - Decadal Responses in Soil N Dynamics at the Bear Brook Watershed in Maine.

• Rustad, L.E. - USDA Forest Service - Forest Type and Treatment Effects on Soil Solution Ca at the Bear Brook Watershed in Maine (BBWM).

• Rustad*, L.E. - USDA Forest Service, Durham, NH - A Cross-Site Synthesis of Forest Ecosystem Response to Elevated Atmospheric N Deposition.

• Rutger, J.N. - USDA-ARS, DB National Rice Research Center - Establishing a Core Collection for Comprehensive Evaluation of US Rice Germplasm.

• Rutgers, B. - Plant Research International - Nitrogen Application Rates On Individual Crops As Determined By Allowable N Surplus Of Dutch Dairy Farms.

• Rutledge, E.M. - University of Arkansas - Soils with Relic Redoximorphic Features in the Eastern Lowlands of Arkansas.

• Rutter, S.M. - IGER - Intake and Dietary Choices by Grazing Ruminants: Effects of Time of Day and Water Soluble Carbohydrate Content of Herbage.

• Ruwe, K. - USDA-ARS, Lincoln, NE - VT Stage in Corn: A Functional Definition.

• Ryan, J.A. - US-Environmental Protection Agency - X-ray microscopy and spectroscopy studies on metal binding in biosolids.

• Ryan, J.A. - US EPA - Competitive Influence of Phosphorus and Calcium on Pb In-vitro Bioavailability.

• Ryan, J.A. - US-Environmental Protection Agency, Cincinnati, OH - Sorption of Cadmium onto Different Fractions of Biosolids and Cadmium Salt-Amended Soils.

• Ryan, J.A. - US EPA - Sorption of Lead on a High Affinity Oxide: Macroscopic and Microscopic Studies.

• Ryan, J.A. - US EPA - Sorption of Arsenite and Arsenate on a High Affinity Oxide: Macroscopic and Microscopic Studies.

• Ryan, J. - ICARDA, Aleppo - Dryland Resources Management Network in West Asia: Land Degradation and Livelihoods.

• Ryan, J. - ICARDA, Aleppo - Soil Organic Carbon of Central Asia’s Agroecosystems: Sources, Sinks, and Fluxes.

• Ryan, J. - ICARDA, Aleppo - Conservation Tillage: New Departure from Traditional Mediterranean Agriculture.

• Ryan, J. - ICARDA, Allepo, Syria - Fertilizer Use in Pakistan's Dryland Agriculture: Requirement, Constraints and Options.

• Ryan, J. - ICARDA, Aleppo, Syria - No-Till System: Departure from Traditional Agricultural Systems in Semiarid Morocco.

• Ryan, J. - ICARDA - Agronomic Practices for Improving Water-Use Efficiency in Drought-Prone Mediterranean-Type Agriculture.

• Ryan, J. - ICARDA, Aleppo, Syria - Challanges and Strategies of Dryland Agriculture in Pakistan.

• Ryan, J. - ICARDA - Sustainable Barley-Legumes Rotations for Semi-Arid Areas of Lebanon.

• Ryan, M. - OECD - The economic and policy aspects of modern biotechnologies in selected developing and transition economies.

• Ryan*, J. - ICARDA - Twenty-Five Years of Nitrogen Research at ICARDA: Achievements and Challenges.

• Rymph*, S.J. - University of Florida - Canopy Photosynthesis, Respiration, Growth, and Partitioning to Plant Components During Regrowth of Bahiagrass.

• Ryu, J.H. - Faculty of Biological Resources Science, Colleage of Agriculture, Chonbuk Natiional Uni. - Determination by the Reverse-Phase High Performance Liquid chromatography and Extraction of Resveratrol in Peanut(Arachis hypogaea L.)

• Ryu*, J.H. - CBNU, Jeonju, Korea - Cytogenetic studies on the Interspecific Hybrid in Genus Arachis hypogaea L.

• Rzewnicki*, P.E. - Ohio State University - Corn Hybrid Agronomic and Grain Quality Assessment for Low-Input Farms.

• Rzewnicki*, P. - Horticulture and Crop Sciences, OSU Extension - Evaluating Soybean Cultivars at Field Productivity Levels using Precision Agriculture Techniques.