• N
  | N APPLICATION RATE | N AVAILABILITY | N BALANCE | N CREDITS | N CYCLING | N CYCLING AND AVAILABILITY | N DYNAMICS | N EFFICIENCY | N EQUIVALENTS | N FERTILITY | N FERTILIZATION | N FERTILIZERS | N FIXATION | N LEACHING | N LOSSES | N MANAGEMENT | N MINERALIZATION | N PLACEMENT | N RECEIVER CROP | N REQUIREMENTS | N RESPONSE | N TIMING | N TRANSFORMATIONS | N UPTAKE | N UPTAKE EFFICIENCY | N USE EFFICIENCY | N X K | N-15 | N2 FIXATION | N2O EMISSIONS | N2O FLUX | NA | NA-CA EXCHANGE | NANOPORES | NANO-SCALE | NAPLS | NARROW-ROW | NASIS | NASS CROP STATISTICS | NATIONAL CARBON ACCOUNTING | NATIONAL GHG ACCOUNTING SYSTEM | NATIONAL NUTRIENT LOSS DATABASE | NATIVE FISH HABITAT QUALITY | NATIVE FORAGE LEGUMES | NATIVE GRASSES | NATIVE LEGUMES | NATIVE PLANTS | NATIVE PRAIRIE | NATIVE SHRUBS | NATIVE VEGETATION | NATURAL ABUNDANCE 15N | NATURAL BACKGROUND | NATURAL DISTURBANCES | NATURAL ORGANIC MATTER | NATURAL RESOURCE MANAGEMENT | NATURAL RUBBER | NATURE OF AGRICULTURAL SCIENCE | NBPT | NBS-LRR | NC PHOSPHORUS LOSS ASSESSMENT TOOL | N-CONCENTRATIONS | NCSOIL MODEL | N-CYCLING | NDVI | NE BRAZIL | NEAR INFRARED REFLECTANCE SPECTROSCOPY | NEAR INFRARED SPECTROSCOPY | NEAR ISOLINES | NEAR SURFACE CHARACTERISTICS | NEAREST NEIGHBOR ANALYSIS | NEAR-INFRARED REFLECTANCE (NIR) | NEAR-ISOGENIC LINES | NEAR-SURFACE | NEBRASKA NATIONAL FOREST | NEBRASKA SAND HILLS | NECTARY | NEEM | NEMATODE | NEMATODE RESISTANCE | NET ANTHROPOGENIC N INPUTS | NET FARM INCOME | NET N MINERALIZATION | NET RETURN | NETWORKS | NEURAL NETWORK | NEURO-FUZZY NETWORK | NEUTRALIZABLE ACIDITY | NEUTRON ACTIVATION ANALYSIS | NEUTRON PROBE | NEVER CULTIVATED SOIL | NEW CROP IN MEXICO | NEW CROPS | NEW PLANT TYPE | NEW TECHNOLOGY | NEW ZEALAND | NEW-CROPS R AND D POLICY | NEXAFS | N-FIXATION | NICHE DIFFERENTIATION | NICKEL | NICKEL OXIDE | NIGER | NIRS | NITRATE | NITRATE AND P RUNOFF | NITRATE ASSIMILATION | NITRATE ASSIMILATION POTENTIAL | NITRATE BIOAVAILABILITY | NITRATE LEACHING | NITRATE MODELING | NITRATE REMOVAL EFFICIENCY | NITRATE RETENTION | NITRATE SOURCES | NITRATE-N | NITRATE-N IN RUNOFF | NITRATE-N REMOVAL | NITRIFICATION | NITRIFICATION IN FOREST SOILS | NITRIFICATION INHIBITOR | NITRIFICATION-DENITRIFICATION | NITRIFIER DENITRIFICATION | NITROAROMATICS | NITRO-AROMATICS | NITROAROMATICS-DEGRADING BACTERIA | NITROGEN | NITROGEN ACCUMULATION | NITROGEN AND PHOSPHORUS | NITROGEN AND PHOSPHORUS FERTILIZATION | NITROGEN AND PHOSPHORUS MANAGEMENT | NITROGEN AND PHOSPHORUS REMOVAL | NITROGEN AVAILABILITY | NITROGEN BUDGET | NITROGEN CYCLING | NITROGEN DEFICIENCY | NITROGEN DEPOSITION | NITROGEN DYNAMICS | NITROGEN EFFICIENCY | NITROGEN FATE | NITROGEN FERTILITY | NITROGEN FERTILIZATION | NITROGEN FERTILIZER | NITROGEN FERTILIZER PLACEMENT | NITROGEN FIXATION | NITROGEN FRACTIONS | NITROGEN HETEROGENEITY | NITROGEN LEACHING | NITROGEN LEVELS | NITROGEN MANAGEMENT | NITROGEN MINERALIZATION | NITROGEN MINERALIZATION RATES | NITROGEN MOVEMENT | NITROGEN NUTRITION | NITROGEN OPTIMIZATION | NITROGEN OVER-ENRICHMENT | NITROGEN PARTITIONING | NITROGEN RATES | NITROGEN RECIEVER | NITROGEN RECOMMENDATIONS | NITROGEN REDUCTION | NITROGEN RESPONSE | NITROGEN RESPONSE INDEX | NITROGEN RETENTION | NITROGEN SOURCE | NITROGEN SURPLUS | NITROGEN TEST | NITROGEN TRANSFORMATIONS | NITROGEN UPTAKE | NITROGEN USE EFFICIENCY | NITROGEN-15 | NITROGENOUS FERTILIZER | NITROSOSPIRA SPECIES | NITROUS OXIDE | NITROUS OXIDE EMISSIONS | NMR | NO TILL | NO TILLAGE | NOCTURNAL BOUNDARY LAYER | NODULATION | NON-FERTILIZER NITROGEN | NON-HIERCHICAL CLUSTER ANALYSIS | NONINVASIVE ELECTROMAGNETIC | NON-INVASIVE MONITORING | NONIONIC ORGANIC COMPOUNDS | NONIONIC SURFACTANT | NON-LABILE C | NON-LIMITING WATER RANGE | NONLINEAR SORPTION | NON-NATIVE | NONNODULATING SOYBEAN | NONPOINT PHOSPHORUS POLLUTION | NON-POINT POLLUTION | NON-POINT SOURCE POLLUTION | NONSINGULARITY | NONSTRUCTURAL CARBOHYDRATES | NON-TARGET SAFETY | NON-TOXIC ENDOPHYTE TALL FESCUE | NOOSOLS | NORMAL DISTRIBUTION | NORMAL-IRRIGATION | NORMALIZED TRANSPIRATION RATIO | NORNICOTINE ACCUMULATION | NORTH CAROLINA | NORTH DAKOTA | NORTH FLORIDA | NORTHEAST MONTANA | NORTHEASTERN U.S. | NORTHERN CORN BELT | NORTHERN GREAT PLAINS | NORTHERN HARDWOOD FOREST | NORTHERN IRELAND | NORTHERN SAHARAN ECOTONE | NO-TILL | NOTILL CROP PRODUCTION | NO-TILL MANAGEMENT | NO-TILL VS. CONVENTIONAL | NO-TILLAGE | NO-TILLAGE ADOPTION | NO-TILLAGE MANAGEMENT | NO-TILLAGE SYSTEM | NO-TILLAGE WHEAT | NRCS | NSF COMPETITIVE GRANTS | NSF COMPETITIVE GRANTS WORKSHOP | NTA | NUCLEAR AND CYTOPLASMIC | NUCLEAR DNA CONTENT | NUCLEAR MAGNETIC RESONANCE | NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY | NUCLEAR-CYTOPLASMIC INTERACTION | NUMERICAL MODELS | NUMERICAL SOLUTIONS | NUTRACEUTICAL | NUTRIENT ACCUMULATION | NUTRIENT AND PH OF SOIL MEDIA AND PLANTS | NUTRIENT AVAILABILITY | NUTRIENT BALANCES | NUTRIENT BUDGET | NUTRIENT CONTENT | NUTRIENT CYCLING | NUTRIENT DYNAMICS | NUTRIENT EFFICIENCY | NUTRIENT ENRICHMENT | NUTRIENT FLUX | NUTRIENT LEACHING | NUTRIENT LOADINGS | NUTRIENT LOSS | NUTRIENT MANAGEMENT | NUTRIENT MANAGEMENT PLANNING | NUTRIENT MANAGEMENT PLANS | NUTRIENT MANAGEMENT POLICY | NUTRIENT MANAGEMENT PRACTICE STANDARD | NUTRIENT MANAGEMENT ZONES | NUTRIENT MANAGMENT | NUTRIENT POOLS | NUTRIENT RECAPITALIZATION | NUTRIENT RELEASE | NUTRIENT RUNOFF | NUTRIENT RUNOFF AND PERCOLATE | NUTRIENT SOLUTION | NUTRIENT STRATIFICATION | NUTRIENT STRESS | NUTRIENT TRANSPORT | NUTRIENT UPTAKE | NUTRIENTS | NUTRITIONAL | NUTRITIVE VALUE | N-VIRO |
• O
  | O HORIZONS | OAK | OAK WOODLANDS | OATS | OCHROSOLS | OFFSET TRADING | OFF-TYPE BERMUDAGRASS | OIL | OIL CONTENT | OIL PALM | OKLAHOMA | OLD-GROWTH FOREST SOILS | OLSEN-P | OM FRACTIONATION | OM STABILITY | ON FARM MANURE TREATMENT | ON-FARM | ON-FARM RESEARCH | ON-FARM SWINE MANURE TREATMENT | ON-FARM TESTING | ON-FARM WATER MANAGEMENT | ONIONS | ON-LINE EDUCATION | ON-LINE LESSONS | ONSITE SEWAGE DISPOSAL SYSTEM | ON-THE-GO SENSORS | OP USE | OPAL | OPAL PHYTOLITHS | OPEN-DITCH | OPEN-FIELD BURNING | OPEN-POLLINATED | OPTICAL MICROSCOPY | OPTICAL SENSOR | OPTIMAL SCALE | OPTIMIZATION | OPTIMUM FERTILIZATION | OPTIMUM N RATE | OPTIMUM YIELD | OPTIONS | OPUNTIA | ORCHARD SOILS | ORCHARDGRASS | ORG. C AND FE/MN REMOVED SOIL FRACTIONS | ORGANIC AGRICULTURE | ORGANIC AMENDMENTS | ORGANIC AND INORGANIC N DISTRIBUTION | ORGANIC AND INORGANIC NITROGEN UPTAKE | ORGANIC AND MINERAL BY-PRODUCTS | ORGANIC ANIONS | ORGANIC CARBON | ORGANIC CONTAMINANT SORPTION | ORGANIC CONTAMINANTS | ORGANIC FARMING | ORGANIC FERTILIZER | ORGANIC MATTER | ORGANIC MATTER ACCUMULATION | ORGANIC MATTER AND PHOSPHORUS ADDITION | ORGANIC MATTER CONTENT | ORGANIC MATTER DECOMPOSITION | ORGANIC MATTER DESTRUCTION | ORGANIC MATTER PHYSICAL CONFORMATION | ORGANIC MATTER POOLS | ORGANIC MATTER QUALITY | ORGANIC MATTER TURNOVER | ORGANIC N | ORGANIC N CREDITING | ORGANIC NITROGEN | ORGANIC P | ORGANIC PHOSPHORUS | ORGANIC SOIL AMENDMENTS | ORGANIC SOILS | ORGANIC SULFUR SPECIATION | ORGANIC-C | ORGANICS | ORGANO-CLAY COMPLEXES | ORGANOCLAYS | ORNAMENTAL GRASSES | ORYZA | ORYZA SATIVA | OUT-CROSSING | OUTREACH AWARENESS | OVEN-DRYING | OVERLAND TRANSPORT | OVERSEEDING | OXALATE OXIDASE | OXIDATION | OXIDATION/REDUCTION POTENTIAL | OXIDATION-REDUCTION | OXISOLS | OXYANIONS | OXYGEN | OXYGEN MEASURING SYSTEM | OXYGEN RESPIRATION | OXYSOLS | OZONED WATER |

• Performance of RZWQM and CERES Wheat Models for Simulating N Management Effects on Winter Wheat.
  

N AVAILABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Potential of the Illinois Soil Nitrogen Test for Improving Nitrogen Fertilizer Management for Corn Production.
  
• Effects of Subsoil Compaction and Subsoiling on N Availability from Poultry Manure.
  

N BALANCE - Back to N - O or Back to All Keywords or Back to the Main Index

• Managing Legumes to Reduce Excess Nitrogen on Dairy Farms.
  

N CREDITS - Back to N - O or Back to All Keywords or Back to the Main Index

• Managing Legumes to Reduce Excess Nitrogen on Dairy Farms.
  

N CYCLING - Back to N - O or Back to All Keywords or Back to the Main Index

• B-Glucosaminidase Activity and Nitrogen Mineralization in Soils under Different Cropping Systems.
  
• Extraction of Humic Acid Fractions Based on Binding to Soil Polyvalent Cations.
  
• Dairy Diet Effects on Manure Nitrogen Excretion and Cycling in Soils.
  

N CYCLING AND AVAILABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• A cross-site comparison of 15N fate and N dynamics in western Oregon forests.
  

N DYNAMICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Dynamics in the Paddy Soils as Affected by Liquefied/Fermented Manure Application.
  
• Quantifying Denitrification in the Subsoil Using 15N Natural Abundance and Potential Denitrification.
  

N EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• How Can We Reduce Leaching and Denitrification Losses?
  

N EQUIVALENTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Sunn Hemp Residue on N-Fertilizer Requirements of a Subsequent Sweet-Corn Crop.
  

N FERTILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Managing Switchgrass as a Biofuels Crop.
  

N FERTILIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Soil Nitrogen Supply and Fertilizer Needs for Short-Rotation Woody Crops.
  
• Corn Response to Long-term Tillage, Residue and Nitrogen Management.
  
• Removal of Phosphorus in Bermudagrass Fertilized with Varying Nitrogen Rates - Year 2.
  

N FERTILIZERS - Back to N - O or Back to All Keywords or Back to the Main Index

• Threshold Responses of Nitrous Oxide Flux to Added N in Intensively Managed Ecosystems.
  
• Twenty-Five Years of Nitrogen Research at ICARDA: Achievements and Challenges.
  

N FIXATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Twenty-Five Years of Nitrogen Research at ICARDA: Achievements and Challenges.
  

N LEACHING - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of the Resin Core Method of Measuring N Mineralization in Whole Farm N Budgets.
  

N LOSSES - Back to N - O or Back to All Keywords or Back to the Main Index

• How Can We Reduce Leaching and Denitrification Losses?
  
• A Microbial Basis for Rapid Nitrification of Urea Nitrogen.
  

N MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Cotton Nitrogen Management for a High-Residue Conservation Tillage System.
  

N MINERALIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen mineralization and ground water nitrate dynamics in a temperate alley cropping system.
  
• Nitrogen Mineralization Along a Fertilization Gradient in Hardwood Plantations.
  
• Nitrogen Mineralization as Affected by Tillage and Year of Stand for Tall Fescue and Fine Fescue in the Willamette Valley, Oregon.
  
• Mineralization of Nitrogen in a Clay Loam Soil Amended with Composts, Red Clover and Liquid Pig Manure.
  
• New N Mineralization Factors for Estimating Plant-Available N in Biosolids.
  
• Net Mineralization of liquid dairy manure organic N.
  
• Root-Parasitic Nematodes Impact Microbial Biomass and Nitrogen Mineralization in Six Soils.
  
• The Economics of Managing Soil Carbon and Nitrogen Pools as Precursors of Soil Quality.
  
• Effect of Suagrbeet Processing By-products on Wheat Yield, Nitrogen Mineralization, and Runoff Water Quality.
  
• A genetic component to ecosystem processes: variation in foliar condensed tannins determine rates of mineralization in a riparian soil.
  
• Dairy Diet Effects on Manure Nitrogen Excretion and Cycling in Soils.
  

N PLACEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• strip till, tillage, n placement, and starter fertilizer effects on corn growth and yield.
  

N RECEIVER CROP - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of Nonnodulating Soybean Lines as Receiver Crops for N from Swine Lagoon Effluent.
  

N REQUIREMENTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Can a Sequence of Green Manures Replace Chemical N as a Fertilizer Source for Sweet Corn ?.
  
• Effects of Sunn Hemp Residue on N-Fertilizer Requirements of a Subsequent Sweet-Corn Crop.
  

N RESPONSE - Back to N - O or Back to All Keywords or Back to the Main Index

• Changes in a 4 Year Crop Rotation after 100 Years: The Historic Sanborn Field Experience.
  

N TIMING - Back to N - O or Back to All Keywords or Back to the Main Index

• strip till, tillage, n placement, and starter fertilizer effects on corn growth and yield.
  

N TRANSFORMATIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• A Microbial Basis for Rapid Nitrification of Urea Nitrogen.
  

N UPTAKE - Back to N - O or Back to All Keywords or Back to the Main Index

• Spatial Responses of Corn Growth and N Uptake to Hybrid Selection and N Levels.
  

N UPTAKE EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Soil Nitrogen Supply and Fertilizer Needs for Short-Rotation Woody Crops.
  

N USE EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Pinto Bean Yield, Maturity, and Nitrogen Fixation Efficiency as Influenced by Nitrogen Fertilizer Management.
  

N X K - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Nitrogen and Potassium on Turf Performance: Exploiting N X K Interactions.
  

N-15 - Back to N - O or Back to All Keywords or Back to the Main Index

• The Fate of Nitrogen Fertilizer in a Perennial Ryegrass Seed Field and Adjacent Grass Riparian Zone.
  

N2 FIXATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Near Isolines for Traits Putatively Associated with Drought-Tolerant N2 Fixation in Soybean.
  
• Managing Legumes to Reduce Excess Nitrogen on Dairy Farms.
  
• How Much N in Soil Organic Matter is Derived from N2 Fixation after Exposing Clover to Elevated CO2 for 8 Years?
  

N2O EMISSIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Canada's National Carbon and Greenhouse Gas Accounting and Verification System.
  

N2O FLUX - Back to N - O or Back to All Keywords or Back to the Main Index

• Modelling Variability In N2O Emissions From Fertilized Agricultural Fields.
  

NA - Back to N - O or Back to All Keywords or Back to the Main Index

• Relative changes of hydraulic conductivities and porosity by swelling of a modified bentonite.
  

NA-CA EXCHANGE - Back to N - O or Back to All Keywords or Back to the Main Index

• Cosolvent Effect on Na-Ca exchange reactions in Bentonite Clay.
  

NANOPORES - Back to N - O or Back to All Keywords or Back to the Main Index

• Entrapment and Desorption Kinetics of Aqueous CO2 on Goethite.
  

NANO-SCALE - Back to N - O or Back to All Keywords or Back to the Main Index

• The Virtual Museum of Minerals and Molecules Presents Soil Nanoscapes.
  
• Properties of Bound Water Associated with Smectites.
  

NAPLS - Back to N - O or Back to All Keywords or Back to the Main Index

• Laboratory Assessment of Soil Flushing of Nonaqueous Phase Liquids with Ethyl Lactate and Limonene Solutions.
  

NARROW-ROW - Back to N - O or Back to All Keywords or Back to the Main Index

• Factors Affecting the Yield Response of Narrow Row Corn.
  

NASIS - Back to N - O or Back to All Keywords or Back to the Main Index

• Who Owns the Data? Access to the University of Missouri Soil Data Base.
  

NASS CROP STATISTICS - Back to N - O or Back to All Keywords or Back to the Main Index

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

NATIONAL CARBON ACCOUNTING - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Changes in Soil Carbon Resulting from Changes in Land Use in Australia.
  
• Changes in Land Cover Impact New Zealands Soil Carbon Budget: An Analysis at Multiple Scales.
  

NATIONAL GHG ACCOUNTING SYSTEM - Back to N - O or Back to All Keywords or Back to the Main Index

• Scaling-up Estimates of Greenhouse Gas Sinks and Emissions for Canada.
  

NATIONAL NUTRIENT LOSS DATABASE - Back to N - O or Back to All Keywords or Back to the Main Index

• Probabilistic Indexes for Phosphorus Losses.
  

NATIVE FISH HABITAT QUALITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Up the Creek and in the Floodplain: A Pacific Northwest Winter's Fish Tale.
  

NATIVE FORAGE LEGUMES - Back to N - O or Back to All Keywords or Back to the Main Index

• Seed and Forage Production of Strophostyles leiosperma and S. helvula Harvested at Three Heights.
  
• Native Warm-season Legumes with Forage Potential in the South-central U.S. Plains.
  

NATIVE GRASSES - Back to N - O or Back to All Keywords or Back to the Main Index

• Performance and nutritive value of Elymus virginicus and E. hystrix in the Northeast USA
  
• Simulating Native and Improved Grasses in Diverse sites in Texas.
  

NATIVE LEGUMES - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Light on Growth and Nodulation of Six Native Legumes.
  

NATIVE PLANTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Importance of Carbon:Nitrogen Ratio in Native Plant Restoration on Contaminated Soils.
  
• Allelopathic Potential of Tall Fescue on Native Prairie Plants of the Midwest, USA.
  

NATIVE PRAIRIE - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Quality and Plant Species Composition of Kansas Native Prairie Sites.
  
• Cultivation Effects on Native Soil Quality in the Delta Region of Eastern Arkansas.
  

NATIVE SHRUBS - Back to N - O or Back to All Keywords or Back to the Main Index

• The Relationship Between Soil Extractable Boron and Tissue Concentrations in Rosaceae Shrubs in Utah.
  

NATIVE VEGETATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Quality and Plant Species Composition of Kansas Native Prairie Sites.
  

NATURAL ABUNDANCE 15N - Back to N - O or Back to All Keywords or Back to the Main Index

• Tracing Nitrate Sources in Surface Water in a Northern Hardwood Forest.
  

NATURAL BACKGROUND - Back to N - O or Back to All Keywords or Back to the Main Index

• Distribution of Lead and Arsenic in Soils from Four Florida Cities.
  

NATURAL DISTURBANCES - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil and Dead Organic Matter Carbon Accounting in Forest Ecosystems: The Canadian Approach.
  

NATURAL ORGANIC MATTER - Back to N - O or Back to All Keywords or Back to the Main Index

• A Study of the Characteristics of Clay-Natural Organic Matter Complexes Prepared Using Different Methods.
  
• Conditional complexation constants for Hg2+ and CH3Hg+ in natural organic matter.
  

NATURAL RESOURCE MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• The Role of Conservation Agriculture for Development in Africa.
  

NATURAL RUBBER - Back to N - O or Back to All Keywords or Back to the Main Index

• The Potential of Sunflower as a Rubber-Producing Crop for the United States.
  

NATURE OF AGRICULTURAL SCIENCE - Back to N - O or Back to All Keywords or Back to the Main Index

• The Imperative of Multiscale Analysis of Post-Industrial Agriculture.
  

NBPT - Back to N - O or Back to All Keywords or Back to the Main Index

• Soybean Response to Late Season Nitrogen Applications.
  

NBS-LRR - Back to N - O or Back to All Keywords or Back to the Main Index

• Resistance genes analogs (RGAs) co-locclize with reistance gene/QTL(s) loci in common bean (Phaseolus vulgaris L.).
  

NC PHOSPHORUS LOSS ASSESSMENT TOOL - Back to N - O or Back to All Keywords or Back to the Main Index

• Degree of Phosphorus Saturation of Selected Soils in North Carolina.
  

N-CONCENTRATIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of N-Fertility on Bt Endotoxin and N Concentration of Early Growth Maize.
  

NCSOIL MODEL - Back to N - O or Back to All Keywords or Back to the Main Index

• Modeling nitrogen transformations during a long-term incubation.
  

N-CYCLING - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil-Atmosphere Exchange of CH4, CO2, NOx, and N2O in the Colorado Shortgrass Steppe under Elevated CO2.
  

NDVI - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of Red and Green NDVI for Yield Prediction in Winter Wheat.
  
• Non-Destructive Evaluation of Potato Nitrogen Status with a Hand-held NDVI Meter.
  
• Determining the Timing for Using LAI and NDVI to Estimate Rice Yield.
  
• Canopy Spectral Reflectance to Estimate Cotton Growth and Yield.
  
• Prediction of Double-Crop Soybean Leaf Area Index and Yield Variability Utilizing the Normalized Vegetation Index.
  
• Wheat Grain Yield Response to Fertilizer Nitrogen estimated Using a Spectral Response Index.
  

NE BRAZIL - Back to N - O or Back to All Keywords or Back to the Main Index

• Organic matter turnover in whole soil and light fraction from a silvo-pastoral system in semi-arid NE Brazil.
  

NEAR INFRARED REFLECTANCE SPECTROSCOPY - Back to N - O or Back to All Keywords or Back to the Main Index

• Determination of N and P Concentrations in Broiler Litter Using Near Infrared Reflectance Spectroscopy.
  

NEAR INFRARED SPECTROSCOPY - Back to N - O or Back to All Keywords or Back to the Main Index

• Classifier Development of Near Infrared Spectroscopy Derived Data to Determine Soybean Cyst Nematode Resistance.
  

NEAR ISOLINES - Back to N - O or Back to All Keywords or Back to the Main Index

• Development and Characterization of Wheat Lines Near Isogenic for a Fusarium Head Blight QTL.
  

NEAR SURFACE CHARACTERISTICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Quality: Comparison of Conventional Winter Wheat/Fallow Cropping to Native Grasslands in eastern Colorado.
  

NEAREST NEIGHBOR ANALYSIS - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of Nearest Neighbor Analysis for Field Screening of Iron-deficiency Chlorosis in Soybean.
  

NEAR-INFRARED REFLECTANCE (NIR) - Back to N - O or Back to All Keywords or Back to the Main Index

• Predicting the amount of Amino Acids in Soybeans using High Performance Liquid Chromatography (HPLC) and Near-Infrared Reflectance (NIR).
  

NEAR-ISOGENIC LINES - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of Near-Isogenic lines for QTL for oil concentration in Maize.
  

NEAR-SURFACE - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of Near-Surface TDR Measurements to Predict Subsurface Solute Transport.
  

NEBRASKA NATIONAL FOREST - Back to N - O or Back to All Keywords or Back to the Main Index

• Long-term forest establishment on prairie soils: effects on soil microbiological, mineralogical, physical, and chemical properties.
  

NEBRASKA SAND HILLS - Back to N - O or Back to All Keywords or Back to the Main Index

• Long-term forest establishment on prairie soils: effects on soil microbiological, mineralogical, physical, and chemical properties.
  

NECTARY - Back to N - O or Back to All Keywords or Back to the Main Index

• Floral Nectary Development and Structure in Glycine max L. Merr.
  

NEEM - Back to N - O or Back to All Keywords or Back to the Main Index

• Azadirachtin A Content of Neem Seed from Different Agro-Ecological Zones of Ghana.
  

NEMATODE - Back to N - O or Back to All Keywords or Back to the Main Index

• Suppression of Problematic Nematodes Using Botanical Extracts in Turfgrass.
  
• Root-knot Nematode Resistant Cotton Research at Delta Research and Extension Center.
  
• Plant-parasitic Nematodes Associated with Switchgrass Grown for Biofuel in the South Central United States.
  

NEMATODE RESISTANCE - Back to N - O or Back to All Keywords or Back to the Main Index

• Development of Multiple Nematode-Resistant Soybean Germplasm.
  

NET ANTHROPOGENIC N INPUTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Recent Nitrogen Mass Balances in the Midwest Cornbelt.
  

NET FARM INCOME - Back to N - O or Back to All Keywords or Back to the Main Index

• External Environmental Costs of West European Agriculture and Gross Farm Returns.
  

NET N MINERALIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Changes in Nitrogen Cycling in Reciprocally Transplanted Soil from Meadows and Forests.
  

NET RETURN - Back to N - O or Back to All Keywords or Back to the Main Index

• Net Returns for Soybean-Wheat Cropping Systems.
  

NETWORKS - Back to N - O or Back to All Keywords or Back to the Main Index

• A statistical and meteorological view on the application of weather network data in agricultural fields.
  

NEURAL NETWORK - Back to N - O or Back to All Keywords or Back to the Main Index

• Functional Evaluation of Different Scale Soil Hydraulic Pedotransfer Functions.
  

NEURO-FUZZY NETWORK - Back to N - O or Back to All Keywords or Back to the Main Index

• Automation of the Nine-Unit Landsurface Model using a Neuro-fuzzy Network.
  

NEUTRALIZABLE ACIDITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Morrisville Buffer Test for Lime Recommendation.
  

NEUTRON ACTIVATION ANALYSIS - Back to N - O or Back to All Keywords or Back to the Main Index

• Rare Earth Element Migration in a Wisconsin Spodosol.
  

NEUTRON PROBE - Back to N - O or Back to All Keywords or Back to the Main Index

• Sensors for Soil Profile Moisture Measurement Compared.
  

NEVER CULTIVATED SOIL - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Organic Carbon Concentrations in Adjacent Cultivated, Restored, and Never Cultivated Hapludalfs and Argiudolls in Northeastern Illinois.
  

NEW CROP IN MEXICO - Back to N - O or Back to All Keywords or Back to the Main Index

• Tomatillo (Physalis ixocarpa) - A Success Story.
  

NEW CROPS - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Unconventional Production Practices on Canola Performance.
  

NEW PLANT TYPE - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of New Plant Type Rice in Korea.
  
• Breaking Yield Barrier in Rice: Exploiting Tropical Japonica and Indica Germplasm.
  

NEW TECHNOLOGY - Back to N - O or Back to All Keywords or Back to the Main Index

• SoLIM: New Technology for the 21st Century Soil Survey.
  

NEW ZEALAND - Back to N - O or Back to All Keywords or Back to the Main Index

• The importance of local scale processes to landscape scale patterns of grassland vegetation diversity.
  

NEW-CROPS R AND D POLICY - Back to N - O or Back to All Keywords or Back to the Main Index

• New Crops for a Global Economy: Barriers and Opportunities.
  

NEXAFS - Back to N - O or Back to All Keywords or Back to the Main Index

• Assessment of organic sulfur species in forest soils using NEXAFS and an ion-sensitive electrode.
  
• A Spectromicroscopic Study of 3d Transition Metal Interactions with Humic Acid; A bright future for Humic Acid Research?
  

N-FIXATION - Back to N - O or Back to All Keywords or Back to the Main Index

• The Effects of Wildfire and Post-fire N Fixation on the C and N Budgets of a Sierran Forest.
  

NICHE DIFFERENTIATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Nutrition of Western Redcedar, Western Hemlock and Salal: Species-Specific Mechanisms.
  

NICKEL - Back to N - O or Back to All Keywords or Back to the Main Index

• Organic Carbon and Iron Oxides as Geochemical Controls of Uranium and Nickel Availability in Contaminated Riparian Sediments.
  
• Retrospective biomonitoring using spatially resolved X-ray microanalysis of Salix nigra L. in a Ni and U contaminated depositional system
  

NICKEL OXIDE - Back to N - O or Back to All Keywords or Back to the Main Index

• Dissolution of Nickel Oxide in a Smelter Contaminated Soil.
  

NIGER - Back to N - O or Back to All Keywords or Back to the Main Index

• Niger Research in Northwest Minnesota.
  

NIRS - Back to N - O or Back to All Keywords or Back to the Main Index

• Measurement of Beef, Poultry, and Swine Manure Composition by Near-Infrared Spectroscopy.
  
• Lignin Determination by Near Infrared Reflectance Spectroscopy.
  
• Sensing Turfgrass Carbohydrate and Nitrogen Status with NIRS.
  
• Seasonal Variation in Carbohydrates in Creeping Bentgrass Under Simulated Stress.
  
• Determination of Nutrients in Composted Cattle Manure using Near-Infrared Spectroscopy.
  

NITRATE - Back to N - O or Back to All Keywords or Back to the Main Index

• Influence of Microbial Community Composition and Function on Water Quality from Dairy Constructed Wetland Wastewater.
  
• Nitrate leaching under management intensive grazing in the Intermountain West.
  
• The Fate of Nitrogen Applied to a 10 Year Old Kentucky Bluegrass Stand.
  
• Varietal effects of cereal rye on recovery of soil inorganic nitrogen.
  
• Sample Frequency Effects on Estimates of Nitrate-N Losses from Subsurface Tile Drains.
  
• Effect of Dissolved Organic Carbon and Phenolic Acids on Denitrification in Subsurface Soil.
  
• Cornstalk Sap Nitrate as a Late-Season Nitrogen Sufficiency Test.
  
• GPFARM Cycling of Crop Residues.
  

NITRATE AND P RUNOFF - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of Suagrbeet Processing By-products on Wheat Yield, Nitrogen Mineralization, and Runoff Water Quality.
  

NITRATE ASSIMILATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Enhancing Nitrogen Use Efficiency and Stress Tolerance of Perennial Ryegrass by Concentrating Nitrate Assimilation in Roots.
  

NITRATE ASSIMILATION POTENTIAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Turfgrass Nitrate Assimilation Potentials under Field Conditions.
  

NITRATE BIOAVAILABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Monitoring Soil Nitrate Bioavailability on Golf Courses and Sod Farms.
  

NITRATE LEACHING - Back to N - O or Back to All Keywords or Back to the Main Index

• Recent Nitrogen Mass Balances in the Midwest Cornbelt.
  
• Agrochemicals in Soil and Groundwater under Potato Irrigation.
  
• Soil Nutrient Accumulation and Movement from Long-term Poultry Broiler Litter Applications.
  
• Influence of Irrigation and Organic Fertilizers on Nitrate Movement in Organic Broccoli Production.
  
• Nitrogen mineralization and ground water nitrate dynamics in a temperate alley cropping system.
  
• Evaluating Nitrate Leaching Characteristics for various Nitrogen Management Strategies on Irrigated Corn along the Lower Arkansas River, Kansas.
  
• Soil Inorganic Nitrogen Under Fertilized Bermudagrass Turf.
  
• Dairy Wastes Land Application Strategy for Irrigated Forage Production.
  
• Continuous Measurement of Water and Solute Fluxes in Soil.
  
• Trajectory of Soil Nitrogen Transformations after Five Years Application of Organic and Inorganic N-Sources.
  
• Nitrate Retention in Forest Soils of the Southeastern US.
  
• Assessment of Environmental Effects of Manure Policy Options in The Netherlands.
  

NITRATE MODELING - Back to N - O or Back to All Keywords or Back to the Main Index

• Predicting the Effects of Agricultural Management Practices on Subsurface Drainage :Nitrate.
  

NITRATE REMOVAL EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Landscape Controls on Nitrate Removal in Stream Riparian Zones.
  

NITRATE RETENTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrate Retention in Forest Soils of the Southeastern US.
  

NITRATE SOURCES - Back to N - O or Back to All Keywords or Back to the Main Index

• Tracing Nitrate Sources in Surface Water in a Northern Hardwood Forest.
  

NITRATE-N - Back to N - O or Back to All Keywords or Back to the Main Index

• Watershed Scale Modeling of Alternative Practices to Reduce Nitrogen Losses to the Environment.
  
• Fresh versus Field-Cured Grass Quality and Nitrate Concentration at Different Nitrogen Rates.
  

NITRATE-N IN RUNOFF - Back to N - O or Back to All Keywords or Back to the Main Index

• Phosphorus and Nitrate-N in Runoff from Simulated Fairways.
  

NITRATE-N REMOVAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Effectiveness of Shrub Buffers on Nitrate-N Removal.
  

NITRIFICATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Trajectory of Soil Nitrogen Transformations after Five Years Application of Organic and Inorganic N-Sources.
  
• Changes in Nitrogen Cycling in Reciprocally Transplanted Soil from Meadows and Forests.
  
• The Effect of Long-term Application of Compost on Microbial Diversity in Ammonia Oxidizer Communities.
  
• Topographic Influences on Nitrate and Carbon Concentrations in Snowmelt Water from a Steep Forested Slope.
  
• Modelling Variability In N2O Emissions From Fertilized Agricultural Fields.
  
• Kinetics of Nitrification in Ammonium-Saturated Clinoptilolite.
  
• Decadal Responses in Soil N Dynamics at the Bear Brook Watershed in Maine.
  
• Transformation of Dairy Manure Nitrogen Fractions to Plant Available Forms.
  
• Controls over Nitrogen Oxide Gas Emissions from Forest Soils along a Gradient in Atmospheric Nitrogen Deposition in the Northeastern U.S.
  

NITRIFICATION IN FOREST SOILS - Back to N - O or Back to All Keywords or Back to the Main Index

• Characterizing Communities of Ammonia-Oxidizing Bacteria in Forest Soils of the Cascade Mountains, Oregon.
  

NITRIFICATION INHIBITOR - Back to N - O or Back to All Keywords or Back to the Main Index

• Mitigation of Nitrous Oxide Emission from Fertilized Upland Fields: Laboratory and Field Studies.
  

NITRIFICATION-DENITRIFICATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Swine Wastewater Treatment in Constructed Wetlands.
  
• Advanced in swine manure treatment in Europe and by product utilization.
  

NITRIFIER DENITRIFICATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Importance of nitrifier denitrification for nitrous oxide production.
  

NITROAROMATICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Thermodynamic Considerations of Nitroaromatics Adsorption by Smectite Clays.
  
• Availability of Soil-Clay Surfaces for Organic Contaminant Sorption.
  

NITRO-AROMATICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Adsorption Energies for Polar Organics Interacting with Clay Minerals.
  

NITROAROMATICS-DEGRADING BACTERIA - Back to N - O or Back to All Keywords or Back to the Main Index

• Surfactants Effect On The Growth Of Nitroaromatics-Degrading Bacteria.
  

NITROGEN - Back to N - O or Back to All Keywords or Back to the Main Index

• The Partners In Nitrogen Use Efficiency Project: The Monitoring of Nutrient Flows and the Assessment of BMPs on Five Farming Operations in Southern Ontario.
  
• Synchronization of N Mineralized from Green Manure with N Uptake by Spring Wheat.
  
• The Role of Freshwater Wetlands as Nutrient Sinks in Agricultural Landscapes.
  
• Non-Destructive Evaluation of Potato Nitrogen Status with a Hand-held NDVI Meter.
  
• The Fate of Nitrogen Fertilizer in a Perennial Ryegrass Seed Field and Adjacent Grass Riparian Zone.
  
• Long-Term Influence of Douglas-fir Urea Fertilization on Forest Floor and Mineral Soil C and N?
  
• Influence of Prescribed Fire on Nitrogen Dynamics in Mid-Rotation Loblolly Pine Plantations.
  
• Nitrous oxide emissions as affected by landscape and soil properties in Alberta and Saskatchewan.
  
• Soil Nitrogen Characteristics of Native Oak Stands in Korea.
  
• Treatment Wetlands for Runoff Nitrogen Control.
  
• Modeling nitrogen transformations during a long-term incubation.
  
• Water Quality and Hydrologic Functions of Riparian Zones in Coastal Plain Watersheds.
  
• Refining Topdress Nitrogen Applications Using a Response Index.
  
• Twenty-Five Years of Nitrogen Research at ICARDA: Achievements and Challenges.
  
• Nutrient Leaching From USGA Specification Rootzones During The Grow-In Phase.
  
• Temporal Origin of Nitrogen in Rice Grain Determined by a Point-Placement Technique.
  
• Nitrogen Fertilization Effects on Yield and Simulated Nitrogen Budgets.
  
• Nitrogen Management Tools for Maintaining Yields and Protecting Water Quality.
  
• Influence of Lumbricus terrestris on Spatial Distribution of Roots and Plant Nutrients.
  
• Nutrient Management of Semi-Arid, Short Season Corn in Direct-Seed Cropping Systems.
  
• Spatial Variability of Soil Amino Sugar Nitrogen.
  
• Spring Nitrogen Use Efficiency and Yield Results from Site-Specific Nitrogen Management in Winter Wheat.
  
• Earthworms, Microbial Biomass and Nitrogen Cycling in Temperate Forest Soils.
  
• Best Management Practices to Reduce Nutrient Loadings in Surface Runoff from Agricultural Land.
  
• Water Quality Evaluation in a Small Community Watershed.
  
• The Effects of Wildfire and Post-fire N Fixation on the C and N Budgets of a Sierran Forest.
  
• Prescribed Burning in the Southern Appalachians: Management Goals and Soil Responses.
  
• Decomposition and Nitrogen Release of Turfgrass Clippings.
  
• Uncertainties Associated with Carbon Sequestration: Whole Profile Perspective in Sub-humid Prairie and Forest Soils.
  
• Soybean Response to Late Season Nitrogen Applications.
  
• Using SUM columns to measure nutrient uptake and root respiration of loblolly pine seedlings.
  
• Effect of Vertical Mowing and Nitrogen on 'TifEagle' and 'Champion' Bermudagrasses.
  
• Kinetics of Nitrification in Ammonium-Saturated Clinoptilolite.
  
• Biomass and Nitrogen Accumulation by Citrus Trees Grown on Sandy Soils in Central Florida.
  
• Functional Components in Citrus: Alteration by Mineral Elements.
  
• Source Identification and Targeting: Making Nutrient Management Work.
  
• Soil CO2 Evolution, Litter Decomposition, and Nitrogen Availability in a Thinned Japanese Larch Plantation.
  
• Bermudagrass Forage Yields as Affected by Nitrogen Fertilizer and Rainfall Time. A Southern Oklahoma Summary.
  
• Dryland Sunflower Yield and Oil Response to Residual and Fertilizer Nitrogen.
  
• Regionalizing Corn Yield Responses to Nitrogen Fertilization within Fields.
  
• Mesophilic Composting of Arctic Char Manure.
  
• Nitrogen Management Zone Delineation.
  
• Crumb Rubber Sublayer Reduces Nutrient Leaching in Sand Putting Greens.
  
• Soybean Growth Response to Varying Nitrogen Rates and Source.
  
• Nitrogen accumulation in forage crops receiving swine effluent and inorganic nitrogen.
  
• Soil Surface Property Changes Over Sixty Years in California.
  
• Nutrient Runoff From Newly Constructed Golf Course.
  
• Sequestering Manure N with Synthetic Zeolites.
  
• Nitrogen Use Efficiency as Influenced by Tillage and Method of Ammonia Application.
  
• Effect of Nitrogen Source and Rate on the Yield and Nutritive Value of Crabgrass.
  
• Bradyrhizobium Inoculation and Nitrogen Fertilization for West Texas Peanut.
  
• Effect of Winter Application of Three Manure Sources on N Availability for Corn in Minnesota.
  
• Relationship between Forage Corn Leaf Nitrogen Concentration and Chlorophyll Meter Readings in a Desert Climate.
  
• How Can we Manage Nitrogen More Efficiently?
  
• Nitrogen and Phosphorus Concentrations in Agricultural Drainage Ditches in the Central Coast Region of California.
  
• Managing Contour Hedgerows for Alley Cropping.
  
• Nitrogen Rate Effects on Root Morphology of Creeping Bentgrass and Annual Bluegrass During Summer Decline and Fall Recovery.
  
• Involvement of Abiotic and Biotic Processes in Carbon Storage.
  
• Detecting Forage Biomass and Nitrogen Concentration Using False Color Infrared Photography.
  
• A Cross-Site Synthesis of Forest Ecosystem Response to Elevated Atmospheric N Deposition.
  
• Preflood and Midseason Nitrogen Rate Effect on Nitrogen Concentration of Rice Flood Water.
  

NITROGEN ACCUMULATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Temporal change in base cation and nitrogen status of Central European forest soils.
  

NITROGEN AND PHOSPHORUS - Back to N - O or Back to All Keywords or Back to the Main Index

• Spatial variability of soil nutrients (N and P) in Piedmont soils.
  
• Nitrogen and Phosphorus Leaching as Affected by Gypsum Amendment and Exchangeable Calcium and Magnesium in a Silt Loam Soil.
  

NITROGEN AND PHOSPHORUS FERTILIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Long-term Fertilization on Methane Dynamics in a Minnesota Peatland.
  

NITROGEN AND PHOSPHORUS MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Wisconsin Water Quality Impact.
  

NITROGEN AND PHOSPHORUS REMOVAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen and Phosphorus Removal from Runoff in a Subsurface Flow Constructed Wetland.
  

NITROGEN AVAILABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Amino Acid Distribution Across a Forest Floodplain Successional Sequence in Interior Alaska.
  

NITROGEN BUDGET - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Inorganic Nitrogen Under Fertilized Bermudagrass Turf.
  

NITROGEN CYCLING - Back to N - O or Back to All Keywords or Back to the Main Index

• Prescribed fire effects on a nitrogen-saturated hardwood forest.
  
• Temporal Patterns in Nitrate Leaching in Forest Ecosystems of the Sierra Nevada.
  
• Controls over Nitrogen Oxide Gas Emissions from Forest Soils along a Gradient in Atmospheric Nitrogen Deposition in the Northeastern U.S.
  
• Plant species effects on dynamic soil properties and soil function.
  
• Nitrogen dynamics along a fire chronosequence in the Ponderosa pine/Douglas-fir forests of western Montana.
  
• Role of Carbon and Nitrogen as Ecological Drivers in Sustainable Cropping Systems.
  
• Effects of Elevated Atmospheric CO2 on Nitrogen and Carbon Cycling in a Model Longleaf Pine Community.
  

NITROGEN DEFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Deficiency Effects on Corn Photosynthesis and Hyperspectral Reflectance.
  

NITROGEN DEPOSITION - Back to N - O or Back to All Keywords or Back to the Main Index

• A Cross-Site Synthesis of Forest Ecosystem Response to Elevated Atmospheric N Deposition.
  
• Decadal Responses in Soil N Dynamics at the Bear Brook Watershed in Maine.
  
• Anthropognic Nitrate Movement into a Southern California Forest Soil.
  
• Forest Type and Treatment Effects on Soil Solution Ca at the Bear Brook Watershed in Maine (BBWM).
  
• Controls over Nitrogen Oxide Gas Emissions from Forest Soils along a Gradient in Atmospheric Nitrogen Deposition in the Northeastern U.S.
  

NITROGEN DYNAMICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Leaf Litter Nitrogen (N), Soil N Availability and Decomposition Dynamics in Two Puerto Rican Forests.
  
• Nitrogen mineralization following compaction and cultivation of hoop pine plantation soils.
  
• Nitrogen use efficiency of Modern and Old Spring Barley cultivars in Finnish growing conditions.
  

NITROGEN EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of Nitrogen Best Management Practices for Potato Production in Northeast Florida.
  

NITROGEN FATE - Back to N - O or Back to All Keywords or Back to the Main Index

• The Fate of Nitrogen Applied to a 10 Year Old Kentucky Bluegrass Stand.
  

NITROGEN FERTILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Tillage System Effects On Nitrogen Requirements For Optimum Irrigated Corn Yields.
  
• Factoring Weather Into Mid-Season Corn Fertility Decisions.
  

NITROGEN FERTILIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• John Lawes' Rothamsted Fertilizer Experiment and Liebig's Polemics.
  
• Variation of Nitrogen Fertilizer Response in Sugarbeet Production Fields.
  
• Environmental Impact of Fertilizing Cool-Season Forage Grasses at Economically Optimum Nitrogen Rates.
  
• Cover Crops and Nitrogen Fertilization Effects on Soil Aggregation and Carbon and Nitrogen Pools.
  
• Soil Chemical Changes Over 16 Years as Influenced by Nitrogen Fertilization, Tillage, and Crop Sequence.
  

NITROGEN FERTILIZER - Back to N - O or Back to All Keywords or Back to the Main Index

• Recent Nitrogen Mass Balances in the Midwest Cornbelt.
  
• Soybean response to nitrogen applications.
  
• Optimizing nitrogen fertilizer practice to improve lychee flowering and yield.
  
• Yield Goal Versus Delta Yield to Predict Nitrogen Need in Corn.
  

NITROGEN FERTILIZER PLACEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Mitigation of Nitrous Oxide Emission from Fertilized Upland Fields: Laboratory and Field Studies.
  

NITROGEN FIXATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Factors Influencing Nitrogen Losses and Fixation in Fire-Maintained Pinus palustris Ecosystems.
  
• Interseeding Falcata Alfalfa (Medicago sativa ssp. falcata) into Native Rangelands: I. Soil Carbon and Nitrogen Dynamics.
  
• Nitrogen Fixation and Partitioning in Old and New Short Season Soybean Varieties.
  
• Implications of Glyphosate Resistant Transgenic Soybeans on the Bradyrhizobium Japonicum Symbiosis.
  
• Effects of Light on Growth and Nodulation of Six Native Legumes.
  

NITROGEN FRACTIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Rumen protein degradation and nitrogen fractions in legume leaves and stems.
  

NITROGEN HETEROGENEITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Fire and Fire Surrogates in a Montana Pine Ecosystem: Spatial Heterogeneity of Nitrogen and Vegetation Diversity.
  

NITROGEN LEACHING - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen in Soil Water and Ground Water below Landscape Nursery Crops, Fallow Fields and Forests.
  
• Leaching Losses Of Nitrogen From Stockpiled Dairy Manure.
  
• Nitrate Leaching and Corn Yields on a Coastal Plain Soil as Influenced by the Timing of Poultry Litter Applications.
  
• Effects of Forest Management on Nitrogen Mobilization in a High Productivity Managed Coastal Douglas Fir Site.
  

NITROGEN LEVELS - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen levels and its correlation with the Chlorophyll content in Cotton.
  

NITROGEN MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Potato Nitrogen Management in Irrigated Pacific Northwest.
  
• Evaluating Nitrate Leaching Characteristics for various Nitrogen Management Strategies on Irrigated Corn along the Lower Arkansas River, Kansas.
  
• Nutrients and High Yields: Need for Concern?
  
• Pre-Season Nitrogen-Rich Strips and Response Index as a New Strategy for Fertilizer Management.
  
• Sunn Hemp as a Nitrogen Fertilizer for Squash.
  
• Nitrogen Management for Winter Malting Barley.
  
• Impact of Spring Nitrogen Fertilizer Timing on Soft Red Winter Wheat Grain Protein.
  
• Use of a Crop Canopy Reflectance Sensor To Assess Corn Leaf Chlorophyll Content.
  
• Linking Soil Quality, Plant Health and Animal Nutrition on Dairy Farms Through Energy and Nitrogen Balance.
  
• The Economic Feasibility Of Variable Rate N Application in Irrigated Corn.
  
• Nitrogen Timing Effects on Milling and Baking Quality of Hard Red Spring Wheat.
  
• How Can We Reduce Volatilization Losses?
  
• Managing Protein in Spring Wheat with Aerial and Satellite Imagery.
  

NITROGEN MINERALIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of the Resin Core Method of Measuring N Mineralization in Whole Farm N Budgets.
  
• Changes in Spectral Reflectance-Based Wheat Grain Yield Prediction Models due to Spring Mineralization of Organic Nitrogen.
  
• Nitrogen Mineralization Measurements on Reciprocally Transplanted Soil Cores One Year After Transplant.
  
• Determination of Nitrogen Mineralization Rates for Biosolids Applied to a Calcareous Soil.
  
• Fire, Charcoal, and Nitrogen Cyling in Swedish Boreal Forests.
  
• Nitrogen Transformations in Soils in the Presence of Trace Elements.
  
• Soil Inorganic Nitrogen Under Fertilized Bermudagrass Turf.
  
• Characterizing Forested Watershed Nitrification Potential with 24-hour Rate Measurements.
  

NITROGEN MINERALIZATION RATES - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Nitrogen Dynamics after Fire in an Alaska Boreal Forest.
  

NITROGEN MOVEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil denitrification and microbial biomass under riparian pastures, forests and cropland in NE missouri.
  

NITROGEN NUTRITION - Back to N - O or Back to All Keywords or Back to the Main Index

• Interseeding Falcata Alfalfa (Medicago sativa ssp. falcata) into Native Rangelands: II. Effects on Forage Production and Carbon Inputs.
  
• Nitrogen Source Management for No-Tillage Wheat Following Corn or Soybean.
  
• Manipulating Grain Protein in Soft Wheat: Late-Season Nutrition Management.
  

NITROGEN OPTIMIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Remote Sensing and Nitrogen Optimization for Site-Specific Management of Soft Red Winter Wheat.
  

NITROGEN OVER-ENRICHMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• The Effect of Nitrogen Over-Enrichment on some Plant-Soil Relationships and Microbial Processes in New England Salt Marshes.
  

NITROGEN PARTITIONING - Back to N - O or Back to All Keywords or Back to the Main Index

• Potato Nitrogen Management in Irrigated Pacific Northwest.
  
• Nitrogen Fixation and Partitioning in Old and New Short Season Soybean Varieties.
  

NITROGEN RATES - Back to N - O or Back to All Keywords or Back to the Main Index

• How Much Nitrogen Do We Need?
  
• Impact of Incomplete Cost Analysis of Agricultural Practices on Agronomic Recommendations - Evaluating Optimum Nitrogen Fertilizer Rates for Corn in Ohio.
  
• Effects of Nitrogen Fertilizer Rate on Maturing and Fruit Quality of White Marsh Grapefruit.
  
• Effect of Supplemental N and Planting Date on Soybean Growth and Yield.
  
• Corn Response to Nitrogen Across Landscape Positions.
  
• Bermudagrass Response to N Over the Past 50 Years and N Recommendations Based on Hay Price and Production Cost.
  
• Yield Response of Valencia Peanut with different row orientations, Nitrogen Rates and Rhizobium Inoculum.
  

NITROGEN RECIEVER - Back to N - O or Back to All Keywords or Back to the Main Index

• Using 15N Labeled Swine Effluent to Determine Nitrogen Use in Soybean.
  

NITROGEN RECOMMENDATIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• How Much Nitrogen Do We Need?
  
• Using the PSNT and Nitrogen Crediting to Improve Corn Nitrogen Recommendations.
  

NITROGEN REDUCTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Alternatives to Alum for Reducing Ammonia Volatilization from Poultry Litter.
  

NITROGEN RESPONSE - Back to N - O or Back to All Keywords or Back to the Main Index

• Spatial variability of optimum N rate for corn.
  

NITROGEN RESPONSE INDEX - Back to N - O or Back to All Keywords or Back to the Main Index

• Pre-Season Nitrogen-Rich Strips and Response Index as a New Strategy for Fertilizer Management.
  

NITROGEN RETENTION - Back to N - O or Back to All Keywords or Back to the Main Index

• The Role of Plants in Nitrogen Retention in Disturbed Forests: Carbon Providers or Nitrogen Sequestrants?
  

NITROGEN SOURCE - Back to N - O or Back to All Keywords or Back to the Main Index

• Managing Alternative Nitrogen Sources in Early and Mid-maturity Crop Varieties.
  
• Impact of Nitrogen Source and Lime on the Incidence and Severity of Gray Leaf Spot in Perennial Ryegrass.
  

NITROGEN SURPLUS - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Application Rates On Individual Crops As Determined By Allowable N Surplus Of Dutch Dairy Farms.
  

NITROGEN TEST - Back to N - O or Back to All Keywords or Back to the Main Index

• Cornstalk Sap Nitrate as a Late-Season Nitrogen Sufficiency Test.
  

NITROGEN TRANSFORMATIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Characterizing Forested Watershed Nitrification Potential with 24-hour Rate Measurements.
  

NITROGEN UPTAKE - Back to N - O or Back to All Keywords or Back to the Main Index

• Endophytic Rhizobia in Cereal and Oilseed Crops.
  

NITROGEN USE EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Nitrogen Use Efficiency Under Field Conditions to Improve Switchgrass Production in Virginia.
  
• Divergent Selection for Grain Protein Affects Nitrogen Use in Maize.
  
• Enhancing Nitrogen Use Efficiency and Stress Tolerance of Perennial Ryegrass by Concentrating Nitrate Assimilation in Roots.
  
• Pre-Season Nitrogen-Rich Strips and Response Index as a New Strategy for Fertilizer Management.
  
• Nitrogen use efficiency of Modern and Old Spring Barley cultivars in Finnish growing conditions.
  
• Role of the Cob in N Transfer into Developing Maize Kernels.
  
• Response of a Tropical Rice Hybrid and an Inbred Variety to Controlled Release and Conventional Prilled Urea in Nueva Ecija, Philippines.
  
• Spring Nitrogen Use Efficiency and Yield Results from Site-Specific Nitrogen Management in Winter Wheat.
  
• Changes in Nitrogen Use Efficiency of Winter Wheat Using In-Season Methods of Determining Topdress N Requirement.
  
• Nitrogen Use Efficiency as Influenced by Tillage and Method of Ammonia Application.
  
• Are higher yields and environmental stewardship compatible?
  
• Changing the Tillage Paradigm in South Asia: Wheat Sown on Beds.
  

NITROGEN-15 - Back to N - O or Back to All Keywords or Back to the Main Index

• Biogeochemical Responses to Fire Seasonality and Frequency in a Temperate Mixed-Grass Savanna: Storage and Dynamics of Soil Carbon and Nitrogen.
  

NITROGENOUS FERTILIZER - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Toxicity on Lettuce Grown under Greenhouse Conditions.
  

NITROSOSPIRA SPECIES - Back to N - O or Back to All Keywords or Back to the Main Index

• Characterizing Communities of Ammonia-Oxidizing Bacteria in Forest Soils of the Cascade Mountains, Oregon.
  

NITROUS OXIDE - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrous oxide concentrations in small streams of the Georgia Piedmont.
  
• Threshold Responses of Nitrous Oxide Flux to Added N in Intensively Managed Ecosystems.
  
• Greenhouse Gas Emissions from Irrigated and Dryland Corn.
  
• Importance of nitrifier denitrification for nitrous oxide production.
  
• Photoacoustic measurement of soil greenhouse gas fluxes.
  
• Establishing Standard Protocols for Tower-based Nitrous Oxide Flux Measurements.
  
• Analysis of complex soil variation in the landscape using wavelets.
  

NITROUS OXIDE EMISSIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Mitigation of Nitrous Oxide Emission from Fertilized Upland Fields: Laboratory and Field Studies.
  
• Nitrous Oxide Emissions from Silage Corn Fields Using Different Fertilizer and Manure Application Regimes.
  

NMR - Back to N - O or Back to All Keywords or Back to the Main Index

• What is litter quality and how does it influence decomposition.
  
• Characterization of black (pyrogenic) carbon in forest soil organic matter.
  
• What does P-31 NMR tell us about phosphorus in dairy manures?.
  
• Characterization of Phosphorus in Poultry Litter.
  

NO TILL - Back to N - O or Back to All Keywords or Back to the Main Index

• No Till Continuous Cropping in the High Plains.
  

NO TILLAGE - Back to N - O or Back to All Keywords or Back to the Main Index

• Concentration of Soil Carbon and Glomalin Affected by Tillage in Eastern South Dakota.
  

NOCTURNAL BOUNDARY LAYER - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimation Of Greenhouse Gas Emissions From An Agricultural Farm Using The Nocturnal Boundary Layer Method.
  

NODULATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Light on Growth and Nodulation of Six Native Legumes.
  

NON-FERTILIZER NITROGEN - Back to N - O or Back to All Keywords or Back to the Main Index

• Pre-Season Nitrogen-Rich Strips and Response Index as a New Strategy for Fertilizer Management.
  

NON-HIERCHICAL CLUSTER ANALYSIS - Back to N - O or Back to All Keywords or Back to the Main Index

• Canonical Discriminant Analysis of Phenotypic Characteristics in Field-Grown Hairy Vetch.
  

NONINVASIVE ELECTROMAGNETIC - Back to N - O or Back to All Keywords or Back to the Main Index

• Inversion of Soil Conductivity Profiles from Noninvasive Electromagnetic Induction Measurements.
  

NON-INVASIVE MONITORING - Back to N - O or Back to All Keywords or Back to the Main Index

• Analytic Element Modeling to Investigate the Spatial Sensitivity of ERT.
  

NONIONIC ORGANIC COMPOUNDS - Back to N - O or Back to All Keywords or Back to the Main Index

• Adsolubilization of Nonionic Organic Compounds into Surfactant-modified Anionic Clays.
  

NONIONIC SURFACTANT - Back to N - O or Back to All Keywords or Back to the Main Index

• Impact of Cation Saturation and the Nonionic Surfactant Brij 35 on Atrazine Sorption by Panther Creek Smectite.
  

NON-LABILE C - Back to N - O or Back to All Keywords or Back to the Main Index

• The Role Of Non-Labile Fractions in C Sequestration.
  

NON-LIMITING WATER RANGE - Back to N - O or Back to All Keywords or Back to the Main Index

• Least-Limiting Water Range Indicators for Assessing Corn Establishment in Tilled and No-Tilled Clay Loam Plots.
  

NONLINEAR SORPTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Phenanthrene Sorption in Chemically Modified Humic Acids.
  

NON-NATIVE - Back to N - O or Back to All Keywords or Back to the Main Index

• Co-existence of Veldt Grass (Ehrharta calycina)and Native Plants Along Coastal California.
  

NONNODULATING SOYBEAN - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of Nonnodulating Soybean Lines as Receiver Crops for N from Swine Lagoon Effluent.
  

NONPOINT PHOSPHORUS POLLUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Water Treatment Residuals as Soil Amendments for Agricultural Buffer Strips: Effects on Plant Growth and Phosphorus Leaching.
  

NON-POINT POLLUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Best management practices, water quality and TMDLs in two East Tennessee watersheds.
  

NON-POINT SOURCE POLLUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Updating WATERSHEDSS: A web based decision support system for Best Management Practice (BMP) selection.
  
• Challenges of an Automated and Integrated Hydrologic Monitoring and Water Quality Sample Collection System for Research in Non-point Source Pollution.
  
• Stream bank erosion along different land-use practices with an emphasis on different grazing practices.
  
• Where the Rubber Meets the Soil: Tire Wear Particles as a Source of Zinc to the Environment.
  

NONSINGULARITY - Back to N - O or Back to All Keywords or Back to the Main Index

• COMPARISON OF NAPHTHALENE DIFFUSION AND NONEQUILIBIRUM ADSORPTION-DESORPTION EXPERIMENTS.
  

NONSTRUCTURAL CARBOHYDRATES - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of Added Sugar on Preference and Intake by Sheep of Hays Cut in the Morning versus the Afternoon.
  

NON-TARGET SAFETY - Back to N - O or Back to All Keywords or Back to the Main Index

• Influence of selected plant growth regulators on herbicide efficacy for bermudagrass suppression in creeping bentgrass.
  

NON-TOXIC ENDOPHYTE TALL FESCUE - Back to N - O or Back to All Keywords or Back to the Main Index

• Forage Production and Animal Performance on Non-toxic Endophyte Tall Fescue.
  

NOOSOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• Classification of Minesoil Series as Noosols.
  

NORMAL DISTRIBUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Stochastic analysis of unsaturated flow with normal distrbution of hydraulic conductivity.
  

NORMAL-IRRIGATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Comparative Performance of Bread Wheat Cultivars under normal and Reduced Irrigations in Sudan.
  

NORMALIZED TRANSPIRATION RATIO - Back to N - O or Back to All Keywords or Back to the Main Index

• Soybean water use phenotypes - screening of exotic germplasm.
  

NORNICOTINE ACCUMULATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Nornicotine accumulation in ethylene treated tobacco leaves.
  

NORTH CAROLINA - Back to N - O or Back to All Keywords or Back to the Main Index

• Selection of Wetland Restoration Sites in Rural Watersheds to Improve Water Quality.
  

NORTH DAKOTA - Back to N - O or Back to All Keywords or Back to the Main Index

• Changes in Soil Properties Important to Erosion in Western North Dakota.
  

NORTH FLORIDA - Back to N - O or Back to All Keywords or Back to the Main Index

• Evaluation of Nitrogen Best Management Practices for Potato Production in Northeast Florida.
  

NORTHEAST MONTANA - Back to N - O or Back to All Keywords or Back to the Main Index

• Crop Sequence Comparisons of a Diverse Rotation in the Northern Plains.
  

NORTHEASTERN U.S. - Back to N - O or Back to All Keywords or Back to the Main Index

• Weed Invasion and Diversity Relationships in Pasture Communities.
  
• Geomorphic Controls of Denitrification in Riparian Wetland Soils: II. Vertical Patterns of Groundwater Denitrification.
  

NORTHERN CORN BELT - Back to N - O or Back to All Keywords or Back to the Main Index

• Corn Response to Planting Dates in the Northern Corn Belt.
  

NORTHERN GREAT PLAINS - Back to N - O or Back to All Keywords or Back to the Main Index

• Are the Number of Extreme Precipitation Events Increasing at the Northern Great Plains Research Laboratory?
  

NORTHERN HARDWOOD FOREST - Back to N - O or Back to All Keywords or Back to the Main Index

• Tracing Nitrate Sources in Surface Water in a Northern Hardwood Forest.
  

NORTHERN IRELAND - Back to N - O or Back to All Keywords or Back to the Main Index

• Development Of A Reliable Soil Test To Predict Plant Available Phosphorus On Eutric Gley Soils In Northern Ireland.
  
• Characterisation of Soil Phosphorus Forms in Eutric Gley Soils derrived from Basalt Glacial Till in Northern Ireland.
  

NORTHERN SAHARAN ECOTONE - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Evolutionary Pathways in a Mediterranean Environment.
  

NO-TILL - Back to N - O or Back to All Keywords or Back to the Main Index

• Why Resource Poor Farmers Adopt No-Till in the Rice-Wheat Areas of South Asia.
  
• Conservation Tillage and Poultry Litter Effects on Cotton and Corn.
  
• Crop Residue Production After Conversion From Perennial Vegetation to Annual Cropping.
  
• Custom-designed, Precision No-till/Conventional Headrow and Plot Drill.
  
• Differences in Soil Temperature and Soil Moisture in Conventionally and No-tilled Field Corn with Applications of Remote Sensing.
  
• No-Till and Conventional Till Comparisons of Wheat, Barley and Pea Varieties.
  
• Conservation tillage processing tomato and cotton production in California's San Joaquin Valley.
  
• Bromide Leaching under Chisel-till and No-till Measured by Lysimeters.
  
• Assessment of Soilborne Disease Pressure in Glyphosate Tolerant Wheat Production.
  
• Consevation Tillage in Oklahoma.
  
• Changes in Soil Organic Matter and Biogenic Gas Production after Plowing a Soil under Long-term No-till.
  
• Land Use and Management Impact On Infiltration rate of Soils.
  
• Using 3-D Visual Computer Software and Griding Algorithm to View Seasonal Soil Water Changes in a Hillslope.
  
• Soil Quality Changes with No-Till in Dryland Cereal Systems.
  
• What are the preferred K placement options for conservation-till soybeans?
  
• Dryland Sunflower Yield and Oil Response to Residual and Fertilizer Nitrogen.
  
• Cover Crops Effects on Soil Properties.
  

NOTILL CROP PRODUCTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Crop Production Technology Transfer into Bulgaria.
  

NO-TILL MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Crop Sequence Comparisons of a Diverse Rotation in the Northern Plains.
  
• 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.
  

NO-TILL VS. CONVENTIONAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Cropping Systems Research in the Driest Rainfed Wheat Region in the World.
  

NO-TILLAGE - Back to N - O or Back to All Keywords or Back to the Main Index

• Forty Years of Continuous No-Tillage: Summary of Results and Lessons Learned.
  
• No Sentiment for the Moldboard Plow: Grant Thomas and No-tillage.
  
• Tillage Rotation: Chisel Plow Benefits in the Corn-Soybean-Wheat/Doublecrop Soybean Rotation.
  
• Soil Moisture Retention Under No-Tillage: Influence of Poultry Litter.
  
• Nutrient Management for a No-Till Rotation in the Argentinean Pampas.
  
• Soil Water use and Grain Yield of Three Dryland Crops under Differing Tillage Systems.
  
• Prospects for zone tillage for Pennsylvania.
  

NO-TILLAGE ADOPTION - Back to N - O or Back to All Keywords or Back to the Main Index

• No Sentiment for the Moldboard Plow: Grant Thomas and No-tillage.
  

NO-TILLAGE MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Greenhouse Gas Balance for No-Tillage compared to Conventional Tillage.
  

NO-TILLAGE SYSTEM - Back to N - O or Back to All Keywords or Back to the Main Index

• No-Till System: Departure from Traditional Agricultural Systems in Semiarid Morocco.
  

NO-TILLAGE WHEAT - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Source Management for No-Tillage Wheat Following Corn or Soybean.
  

NRCS - Back to N - O or Back to All Keywords or Back to the Main Index

• Automating Indiana's Environmental Assessment Tool for Use With Nutrient Management Planning Software.
  
• The Role of Phosphorus Indexes and Conservation Practices in Nutrient Management Planning.
  
• Designing Ohio and Indiana Comprehensive Nutrient Management Plans as 'Smart' Documents.
  

NSF COMPETITIVE GRANTS - Back to N - O or Back to All Keywords or Back to the Main Index

• National Science Foundation-United States Department of Agriculture Grantsmanship Workshop.
  

NSF COMPETITIVE GRANTS WORKSHOP - Back to N - O or Back to All Keywords or Back to the Main Index

• National Science Foundation---United States Department of Agriculture Grantsmanship Workshop.
  

NTA - Back to N - O or Back to All Keywords or Back to the Main Index

• The Role of Amorphous and Organically Complexed Metals in Phosphorus Sorption of Calcareous Soils.
  

NUCLEAR AND CYTOPLASMIC - Back to N - O or Back to All Keywords or Back to the Main Index

• Nuclear and Cytoplasmic Diversity of Pacific Northwest Wheat Germplasm.
  

NUCLEAR DNA CONTENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Consistency of Intraspecific Genome Size Variation in Soybean as Detected by Flow Cytometry.
  

NUCLEAR MAGNETIC RESONANCE - Back to N - O or Back to All Keywords or Back to the Main Index

• Mineralogical Analysis by Nuclear Magnetic Resonance Spectroscopy.
  
• NMR studies of organo-mineral complexes and soil surfaces.
  
• Organic Phosphorus Composition and Potential Bioavailability in Western US Soils.
  

NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY - Back to N - O or Back to All Keywords or Back to the Main Index

• Mineral regulation of organic matter physical conformation at the soil-water interface: a new variable in organic contaminant sorption.
  

NUCLEAR-CYTOPLASMIC INTERACTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Localizing The Species Cytoplasm Specific Gene by Radiation Hybrid Mapping in Wheat.
  

NUMERICAL MODELS - Back to N - O or Back to All Keywords or Back to the Main Index

• Multicomponent Transport Model HYDRUS-PHREEQC For Variably-Saturated Porous Media: Application To the Transport Of Heavy Metals in Soils.
  
• Radon Transport in Soil and Vegetation II. Biohydrogeologic Model
  

NUMERICAL SOLUTIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• A Layered Numerical Model to Predict Convective Dispersive Solute Transport.
  

NUTRACEUTICAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Factors Effecting the Concentration of a Nutraceutical Lignan in Flaxseed.
  
• Relatives of Common Bean with Nutraceutical, Pharmaceutical, and Industrial Uses.
  

NUTRIENT ACCUMULATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Biomass and Nitrogen Accumulation by Citrus Trees Grown on Sandy Soils in Central Florida.
  

NUTRIENT AND PH OF SOIL MEDIA AND PLANTS - Back to N - O or Back to All Keywords or Back to the Main Index

• The efficient use of household solid wastes compost.
  

NUTRIENT AVAILABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Partial Cutting and Site Preparation Impacts on Nutrient Availability and Eastern White Pine Seedling Response.
  
• Tree Species Influences on Belowground Carbon Flux: Assessing the Rhizosphere Effect in Forest Trees.
  
• Productivity of Second Rotation Loblolly Pine Plantations in Response to Intensive Culture.
  
• Prescribed Burning in the Southern Appalachians: Management Goals and Soil Responses.
  
• Nutrient Availability and Changes in a Calcareous Soil Amended with Compost.
  

NUTRIENT BALANCES - Back to N - O or Back to All Keywords or Back to the Main Index

• Assessment of Environmental Effects of Manure Policy Options in The Netherlands.
  

NUTRIENT BUDGET - Back to N - O or Back to All Keywords or Back to the Main Index

• Selenium Uptake by Forage Species Grown on Phosphate Mining Waste Rock.
  

NUTRIENT CONTENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of Management Practices on Nutritional Quality of Crops.
  

NUTRIENT CYCLING - Back to N - O or Back to All Keywords or Back to the Main Index

• Linking Soil Quality, Plant Health and Animal Nutrition on Dairy Farms Through Energy and Nitrogen Balance.
  
• Interseeding Falcata Alfalfa (Medicago sativa ssp. falcata) into Native Rangelands: I. Soil Carbon and Nitrogen Dynamics.
  
• Field Evaluation of Open-Ditches for Water Quality and Water Quantity.
  
• Soil Organic Matter Stratification with Depth under Pastures in the Southern Piedmont USA.
  
• Base-cation Cycling by Individual Tree Species in Old-growth Hardwood-hemlock Forests of Sylvania Recreation Area, Upper Michigan.
  
• Land Use Impact on Plant and Sediment Nutrient Enrichment in Grazed Seasonal Wetland Ecosystems.
  
• Soil Carbon Dynamics of a Subtropical Savanna Ecosystem.
  
• Integrating People, Soils, Animals and Landscapes To Sustain Agriculture in the Central Highlands of Ethiopia.
  

NUTRIENT DYNAMICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Nutrient Dynamics of Dairy Manure Applied to Agricultural Lands in Eastern Washington.
  
• Decomposition Patterns of Managed Rye Residue and their Effects on Soil Nutrient Dynamics.
  

NUTRIENT EFFICIENCY - Back to N - O or Back to All Keywords or Back to the Main Index

• How Can We Better Manage P for the Environment.
  

NUTRIENT ENRICHMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Functional and Community Level Microbial Indicators of Nutrient Enrichment in Wetlands; a Mesocosm Scale Experiment.
  

NUTRIENT FLUX - Back to N - O or Back to All Keywords or Back to the Main Index

• Modeling Seasonal Variability of Soil and Groundwater Properties at Selected Piedmont Wetlands in Mid-Atlantic U.S.
  

NUTRIENT LEACHING - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of Urban Landscape Type on Nutrient Leaching and Runoff.
  
• Soil Properties of Sites Used for Composting Animal Manure.
  
• Leaching and Runoff of Nitrogen and Phosphorus from a Manured Field Crop Experiment.
  
• Nutrient Dynamics of Dairy Manure Applied to Agricultural Lands in Eastern Washington.
  

NUTRIENT LOADINGS - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Plant Nutrient Loading to the Chesapeake Bay.
  
• An Evaluation of Polyacrylamide and Surface Hydrologic Effects on Runoff Water Quality.
  
• Monitoring surface runoff from Sugarcane fields, Pasture lands, and Rural Residential areas in Vermilion-Teche River Basin, Louisiana.
  

NUTRIENT LOSS - Back to N - O or Back to All Keywords or Back to the Main Index

• Reducing Soil and Water Runoff in California Central Coast Vineyards.
  

NUTRIENT MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Integrated Nutrient Management Planning Software Tools.
  
• Considering Sodium in Nutrient Management Planning.
  
• Role of Ration Balancing in Dairy Farm Nutrient Management: Case Studies.
  
• Phosphorus Management Tools for Maintaining Yields and Protecting Water Quality.
  
• Nutrient Management Software for the Tropics: NuMaSS.
  
• Leaching and Runoff of Nitrogen and Phosphorus from a Manured Field Crop Experiment.
  
• A Statewide Assessment of the Impacts of P-Index Implementation in Pennsylvania.
  
• An Environmental Research Strategy for Broad-Based Planning - Lancaster County, Nebraska.
  
• Incorporating Inorganic Fertilizer into Perennial Grasslands.
  
• Developing and Implementing Science-Based Policy: Lessons from the Mid-Atlantic U.S.
  
• Managing Protein in Spring Wheat with Aerial and Satellite Imagery.
  
• Improved nutrient management: Capturing benefits from differences in water and solute movement.
  
• Evaluating Old and New Methods of Indexing Dissolved Phosphorus Loss in Pennsylvania's Phosphorus Index.
  
• Are We Managing for Higher Yields?
  
• Implementing Nutrient Management Policy with SNMP and MMP: GIS Data Acquisition and Mapping.
  
• Wisconsin Water Quality Impact.
  
• What are Some Indicators of P Loss Potential?
  
• Comparison of Matrix and Pathway Versions of the Phosphorus Site Index.
  
• Double Cropped Forages for Maximizing Phosphorus Removal in Southwest Idaho.
  
• Manure Phosphorus Concentration and Its Effects on Soil Chemical and Depth Phosphorus Distribution.
  
• Developing and Implementing a Mass Based Phosphorus Index in Virginia.
  
• Managing Insect and Disease Stress in High Yield Environments.
  
• Water quality effects of surface mine reclamation with biosolids.
  
• Remote Sensing of Available Phosphorus in Corn.
  
• Changes in Soil Attributes Following Three Years of Swine Manure Application in No-Tillage Sorghum.
  
• Sequestering Manure N with Synthetic Zeolites.
  

NUTRIENT MANAGEMENT PLANNING - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of Computer Spreadsheets and Paper-based Workbooks to Teach Comphrensive Nutrient Management Planning.
  
• Automating Indiana's Environmental Assessment Tool for Use With Nutrient Management Planning Software.
  
• How Feasible is it to Manage P using Indicators of Loss?
  
• Designing Ohio and Indiana Comprehensive Nutrient Management Plans as 'Smart' Documents.
  

NUTRIENT MANAGEMENT PLANS - Back to N - O or Back to All Keywords or Back to the Main Index

• Implementing USDA NRCS' Nutrient Management Policy.
  

NUTRIENT MANAGEMENT POLICY - Back to N - O or Back to All Keywords or Back to the Main Index

• Implementing Nutrient Management Policy with SNMP and MMP: Plan Writing and Reporting.
  

NUTRIENT MANAGEMENT PRACTICE STANDARD - Back to N - O or Back to All Keywords or Back to the Main Index

• Status of Phosphorus Management in Pennsylvania.
  

NUTRIENT MANAGEMENT ZONES - Back to N - O or Back to All Keywords or Back to the Main Index

• Comparison of Three Zone Delineation Methods and their Impacts on Water Quality.
  

NUTRIENT MANAGMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Snowmelt Runoff as a Transport Factor in a Phosphorus Site Index.
  

NUTRIENT POOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• Productivity of Second Rotation Loblolly Pine Plantations in Response to Intensive Culture.
  

NUTRIENT RECAPITALIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Phosphorus Recapitalization Strategies Using Phosphate Rocks in Western Kenya.
  

NUTRIENT RELEASE - Back to N - O or Back to All Keywords or Back to the Main Index

• Dynamics of Thinning Slash Decomposition and Nutrient Release in a Radiata Pine Plantation Forest.
  

NUTRIENT RUNOFF - Back to N - O or Back to All Keywords or Back to the Main Index

• Assessing Nutrient Runoff From Golf Course Fairways Using Multiple Vegetative Filter Strips.
  

NUTRIENT RUNOFF AND PERCOLATE - Back to N - O or Back to All Keywords or Back to the Main Index

• Nutrient Loss via Runoff and Percolate from Turfgrass.
  

NUTRIENT SOLUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Onion Growth and Composition in Hydroponic Systems.
  

NUTRIENT STRATIFICATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Soybean P Nutrition: Does Soil P Stratification Matter?
  

NUTRIENT STRESS - Back to N - O or Back to All Keywords or Back to the Main Index

• Yield and Fiber Quality of Cotton as Influenced by Nitrogen Nutrition.
  

NUTRIENT TRANSPORT - Back to N - O or Back to All Keywords or Back to the Main Index

• Submeter to Landscape Scale Spatial Variability of Soil Phosphorus: Modeling and Implications.
  

NUTRIENT UPTAKE - Back to N - O or Back to All Keywords or Back to the Main Index

• The Role of Efflux in Nutrient Uptake by Intact Tree Roots.
  
• Using SUM columns to measure nutrient uptake and root respiration of loblolly pine seedlings.
  
• Comparing Methods of Measuring Nutrient Uptake by Intact Roots of Mature Trees.
  
• Nutrient Uptake by Orchardgrass and Sudangrass Fertilized With Poultry Litter.
  
• Influence of a Herbicide Resistance Gene on Nutrient Uptake.
  
• Nutrient Uptake by Warm Season Annual Grasses and Common Bermudagrass Fertilized with Swine Waste.
  
• Phosphorus Fertilization and Previous Crop Effects on Nutrient Uptake and Grain Yield of Wheat.
  

NUTRIENTS - Back to N - O or Back to All Keywords or Back to the Main Index

• GPFARM Cycling of Crop Residues.
  
• Soil Properties and Fertility Management on Different Roots Media.
  
• Feedlot Rules and Manure Management Education in Minnesota.
  
• Water Quality Monitoring in Bayou Plaquemine Brule Watershed in Southwestern Louisiana.
  
• Phosphorous Best Management Practices in the North Bosque River Basin using APEX Manure Management Component.
  
• Vermitechnology to Sustain Upland Rice System.
  
• Nutrient Management for a No-Till Rotation in the Argentinean Pampas.
  
• Grower/Dealer View of High Yield Crop Production.
  
• Determination of Nutrients in Composted Cattle Manure using Near-Infrared Spectroscopy.
  
• Nutrient Response of Sediments in Reelfoot Lake Tennessee after Rehydration.
  
• Implementing USDA NRCS' Nutrient Management Policy.
  
• Integrated Agricultural Management Systems - Neosho River Basin Site, Kansas.
  
• Nutrient Flows in Dairy Manure Treatment Systems.
  
• Land Use Impact on Plant and Sediment Nutrient Enrichment in Grazed Seasonal Wetland Ecosystems.
  
• What Factors Are Important for Attaining Higher Yielding Corn.
  
• Analyzing Site-Specific Soil Test Data to Help Farmers Make Management Decisions.
  
• Growth Responses of Bermudagrass to Different Levels of Nutrients of the Culture Medium.
  
• Soil Phosphorus Forms in Wetland Soils from the Stormwater Treatment Areas of the Northern Everglades.
  

NUTRITIONAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Influence of Stage of Harvest on Nutritional Values and Agronomic Traits of Vegetable Soybean Genotypes.
  

NUTRITIVE VALUE - Back to N - O or Back to All Keywords or Back to the Main Index

• Production and Nutritive Value of Orchardgrass Along a Gradient From Open Pasture to Woodland.
  
• Legume Influence on Forage Production, Forage Quality and Lamb Performance of Semi-Arid Pastures.
  
• Seasonal and Cutting Interval Effects on Herbage Mass and Nutritive Value of Brachiaria spp.
  
• Effect of Harvest Date on the Yield and Nutritive Value of Corn Utilized for Grazing.
  

N-VIRO - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of Various Sources of Sulfur on Yield and Quality of Alfalfa and Soybean.
  

O HORIZONS - Back to N - O or Back to All Keywords or Back to the Main Index

• O and below: mites, worms, roots and humus forms as pedological factors.
  

OAK - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Nitrogen Characteristics of Native Oak Stands in Korea.
  

OAK WOODLANDS - Back to N - O or Back to All Keywords or Back to the Main Index

• Morphology and Mycorrhizal Ecology of a Deep Granitic Regolith Under an Oak-Woodland.
  
• Temporal Patterns in Nitrate Leaching in Forest Ecosystems of the Sierra Nevada.
  

OATS - Back to N - O or Back to All Keywords or Back to the Main Index

• Reverse Chromosome Engineering: Domestication of the Wild Tetraploid Oat Avena magna.
  
• Grain and Straw Protein Contents of Small Grains.
  
• Quantitative Trait Loci Associated with Protein and Oil Content of Cultivated Oat.
  
• Genomic Regions that Underlie Barley Yellow Dwarf Tolerance in Cultivated Oat.
  
• Long-Term Agroecological Research (LTAR) in Iowa: Certified Organic Comparisons.
  

OCHROSOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• The Main Agro-Ecological Zones and Associated Benchmark Soils of Ghana.
  

OFFSET TRADING - Back to N - O or Back to All Keywords or Back to the Main Index

• Issues in Aggregating Carbon Sequestration Accounting Across Farms.
  

OFF-TYPE BERMUDAGRASS - Back to N - O or Back to All Keywords or Back to the Main Index

• The Phenotypic Stability of Triploid Bermudagrasses When Exposed to Dinitroaniline Herbicides.
  

OIL - Back to N - O or Back to All Keywords or Back to the Main Index

• Oil and Fatty Acid Profiles of Soybeans (Maturity Groups IV, V, and VI) Grown in Oklahoma.
  
• Association Among Seed Components of Large and Small-Seeded Soybean Lines.
  
• Evaluation of Near-Isogenic lines for QTL for oil concentration in Maize.
  

OIL CONTENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Dryland Sunflower Yield and Oil Response to Residual and Fertilizer Nitrogen.
  

OIL PALM - Back to N - O or Back to All Keywords or Back to the Main Index

• Site-specific strategies for nutrient management in plantation-based oil palm: An Indonesian perspective.
  

OKLAHOMA - Back to N - O or Back to All Keywords or Back to the Main Index

• Consevation Tillage in Oklahoma.
  

OLD-GROWTH FOREST SOILS - Back to N - O or Back to All Keywords or Back to the Main Index

• How low can you go? Applying GIS to soil-landscape mapping at large scales
  

OLSEN-P - Back to N - O or Back to All Keywords or Back to the Main Index

• Development Of A Reliable Soil Test To Predict Plant Available Phosphorus On Eutric Gley Soils In Northern Ireland.
  

OM FRACTIONATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Carbon sequestering capacity and stability of organic matter in soils from humid-temperate areas in NW Spain.
  

OM STABILITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Carbon sequestering capacity and stability of organic matter in soils from humid-temperate areas in NW Spain.
  

ON FARM MANURE TREATMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Advanced in swine manure treatment in Europe and by product utilization.
  

ON-FARM - Back to N - O or Back to All Keywords or Back to the Main Index

• Corn Hybrid Agronomic and Grain Quality Assessment for Low-Input Farms.
  

ON-FARM RESEARCH - Back to N - O or Back to All Keywords or Back to the Main Index

• Transition Challenges Associated With Implementing Organic Agriculture Research.
  

ON-FARM SWINE MANURE TREATMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Development of a Total Manure Treatment System Alternative to Lagoon-Sprayfield Technology in North Carolina.
  

ON-FARM TESTING - Back to N - O or Back to All Keywords or Back to the Main Index

• AGSTATS02 - A Simple Statistical Analysis Program for On-farm Testing.
  

ON-FARM WATER MANAGEMENT - Back to N - O or Back to All Keywords or Back to the Main Index

• On-Farm Water Management in Central Asia.
  

ONIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Onion Growth and Composition in Hydroponic Systems.
  

ON-LINE EDUCATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Assessment of Interactive Computer Modules and Student Learning in Introductory Soil Science.
  

ON-LINE LESSONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Peer reviewed on-line lessons for teaching crop genetics and genetic engineering.
  

ONSITE SEWAGE DISPOSAL SYSTEM - Back to N - O or Back to All Keywords or Back to the Main Index

• Impact of Onsite Sewage Disposal Systems on surface water quality in Hospelika Creek Watershed, Alabama.
  

ON-THE-GO SENSORS - Back to N - O or Back to All Keywords or Back to the Main Index

• Algorithm for post-processing of yield monitor data.
  

OP USE - Back to N - O or Back to All Keywords or Back to the Main Index

• Dormant Season Organophosphate Use in California Almonds.
  

OPAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Light Mineral Assessment of Soils formed in Quaternary Silts in Maryland.
  

OPAL PHYTOLITHS - Back to N - O or Back to All Keywords or Back to the Main Index

• The Biogeochemistry of Silica in Terrestrial Ecosystems.
  

OPEN-DITCH - Back to N - O or Back to All Keywords or Back to the Main Index

• Field Evaluation of Open-Ditches for Water Quality and Water Quantity.
  

OPEN-FIELD BURNING - Back to N - O or Back to All Keywords or Back to the Main Index

• Residue Decomposition in Non-Thermal Kentucky Bluegrass Seed Production Systems.
  

OPEN-POLLINATED - Back to N - O or Back to All Keywords or Back to the Main Index

• Yield and Quality of Grain and Silage from Open-pollinated Corn.
  

OPTICAL MICROSCOPY - Back to N - O or Back to All Keywords or Back to the Main Index

• Petrographic Microscope Techniques.
  

OPTICAL SENSOR - Back to N - O or Back to All Keywords or Back to the Main Index

• On-Farm Trials Using a Field-Scale, One Meter Resolution Variable Nitrogen Rate Applicator.
  

OPTIMAL SCALE - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Stocks of Soil Organic Carbon at Multiple Scales.
  

OPTIMIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• PCR Optimization for Mapping Intraspecific Cross in Rice.
  

OPTIMUM FERTILIZATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen in Soil Water and Ground Water below Landscape Nursery Crops, Fallow Fields and Forests.
  

OPTIMUM N RATE - Back to N - O or Back to All Keywords or Back to the Main Index

• How Much Nitrogen Do We Need?
  

OPTIMUM YIELD - Back to N - O or Back to All Keywords or Back to the Main Index

• How Much Nitrogen Do We Need?
  

OPTIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Fertilizer Use in Pakistan's Dryland Agriculture: Requirement, Constraints and Options.
  

OPUNTIA - Back to N - O or Back to All Keywords or Back to the Main Index

• Uses, Agronomy, and Breeding of Opuntia spp..
  

ORCHARD SOILS - Back to N - O or Back to All Keywords or Back to the Main Index

• Dissolution of Cu in a Cu-Contaminated Orchard Sandy Loam as Affluenced by Dissolved Organic Matter.
  

ORCHARDGRASS - Back to N - O or Back to All Keywords or Back to the Main Index

• Estimating Dry Matter Losses in Rain-Damaged Orchardgrass and Bermudagrass Hays Using Simulated Rainfall and Internal Markers.
  
• Using Simulated Rainfall Techniques to Estimate Dry Matter Losses and Changes in Nutritive Value for Wilting Orchardgrass Forages.
  
• Nutrient Uptake by Orchardgrass and Sudangrass Fertilized With Poultry Litter.
  
• Time of Year, Botanical Composition, and Forage Quality Effects on Calibration of a Rising Plate Meter in New York Pastures.
  
• Performance and nutritive value of Elymus virginicus and E. hystrix in the Northeast USA
  

ORG. C AND FE/MN REMOVED SOIL FRACTIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Sorption of Cadmium onto Different Fractions of Biosolids and Cadmium Salt-Amended Soils.
  

ORGANIC AGRICULTURE - Back to N - O or Back to All Keywords or Back to the Main Index

• Sir Albert Howard's 'War In The Soil' And The Origins Of Organic Agiculture.
  
• Transition Challenges Associated With Implementing Organic Agriculture Research.
  
• Soil Quality, Profitability and Risk of Conventional and Organic Cropping Systems.
  
• Soil Quality Assessment in Alternative and Conventional Cropping Systems.
  

ORGANIC AMENDMENTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Compost as an organic amendment for USGA rootzones.
  
• Soil Organic Amendment and Phosphorus Mineralization in the Rhizosphere.
  
• Correcting Nutrient Deficiencies in the Corraline Soils of the Marshall Islands with Local Organic Materials.
  

ORGANIC AND INORGANIC N DISTRIBUTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Tillage and Fertilizer Placement Effects on N Distribution in Soil, Runoff, and Plants.
  

ORGANIC AND INORGANIC NITROGEN UPTAKE - Back to N - O or Back to All Keywords or Back to the Main Index

• Nitrogen Nutrition of Western Redcedar, Western Hemlock and Salal: Species-Specific Mechanisms.
  

ORGANIC AND MINERAL BY-PRODUCTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Use of Recycled Foundry Sand and other Amendments in Sports Turf Root Zones.
  

ORGANIC ANIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Phosphorus Sorption/Desorption in Brazilian Oxisols: Effects of pH and Organic Anions on P Bioavailability.
  

ORGANIC CARBON - Back to N - O or Back to All Keywords or Back to the Main Index

• Holocene Dust Aggradation as a C Sequestration Process in Great Plains Mollisols.
  
• Using an Energy Model to Describe the Contribution of Organic Carbon to Soil Water Holding Capacity.
  
• Organic C Storage and Cycling As Indicators of Ecological Condition For Military Land Management.
  
• Estimating Stocks of Soil Organic Carbon at Multiple Scales.
  
• Wettability of Soil Aggregates from Cultivated and Non-Cultivated Ustolls and Usterts.
  
• Organic Matter Determination of Calcareous Soils Using Dry Combustion Analysis.
  
• Quality of Soils Developed on Anthropogenic Substrates.
  

ORGANIC CONTAMINANT SORPTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Mineral regulation of organic matter physical conformation at the soil-water interface: a new variable in organic contaminant sorption.
  

ORGANIC CONTAMINANTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Phyto-Engineering to Remediate PAH and PCB Contaminated Dredged Material.
  

ORGANIC FARMING - Back to N - O or Back to All Keywords or Back to the Main Index

• Carbon and Nutrient Accumulation in Transitional Organic Farming Systems.
  
• Maintaining Agroecosystem Health in the Conversion to Organic Management of a Strawberry/Vegetable Rotation System.
  
• Bokashi composting with organic wastes from farms in the Humid Tropics.
  
• Influence of Irrigation and Organic Fertilizers on Nitrate Movement in Organic Broccoli Production.
  
• NOVABA Interactive Regional Learning Network in Agroecology.
  

ORGANIC FERTILIZER - Back to N - O or Back to All Keywords or Back to the Main Index

• Microbial Properties in Turfgrass Soils under Short-term Natural Organic Fertilizer Application.
  
• Bokashi composting with organic wastes from farms in the Humid Tropics.
  
• Sunn Hemp as a Nitrogen Fertilizer for Squash.
  
• Influence of Irrigation and Organic Fertilizers on Nitrate Movement in Organic Broccoli Production.
  

ORGANIC MATTER - Back to N - O or Back to All Keywords or Back to the Main Index

• Dynamics of C Storage in No-Till Spring Crop Rotations.
  
• Quality of soil organic matter under different management practices in a tropical acid soil.
  
• Use of 13-C NMR for Organic Matter Characterization in Forest Ecosystem Studies.
  
• Organic Amendment, Decomposition, Nutrient Release and Uptake by Millet in a Traditional Land Rehabilitation Technique (Zai) in the Sahel.
  
• Impact of Soil Degradation on Organic Matter and Aggregate Stability.
  
• Influence of Redox Status on the Natural Attenuation of Contaminants Emanating from a Coal Pile.
  
• Organic Matter Effects on Phase Partition of 1,3-Dichloropropene in Soil.
  
• Characterization of black (pyrogenic) carbon in forest soil organic matter.
  
• Smother Intercrops Check Weed Growth in Direct Seeded Rice.
  
• The influence of soil carbon dioxide on turfgrass performance: field observations from California and Illinois golf course greens.
  

ORGANIC MATTER ACCUMULATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Ecological Indicators of Mine Land Reclamation Success.
  

ORGANIC MATTER AND PHOSPHORUS ADDITION - Back to N - O or Back to All Keywords or Back to the Main Index

• Role of Mycorrhizal Fungi as a Biofertlizer for Wheat under Drought Condition.
  

ORGANIC MATTER CONTENT - Back to N - O or Back to All Keywords or Back to the Main Index

• Organic Matter Content and Water Repellency of Amended Sand Mixtures from Field Grown Bentgrass Putting Greens.
  

ORGANIC MATTER DECOMPOSITION - Back to N - O or Back to All Keywords or Back to the Main Index

• Decomposition of Elevated CO2-Grown Plant Material Under Varying UV-B Radiation Exposure in Shortgrass Steppe.
  

ORGANIC MATTER DESTRUCTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Impact of Selected Organic Matter Destruction Methods on Soil Particle Size Analysis.
  

ORGANIC MATTER PHYSICAL CONFORMATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Mineral regulation of organic matter physical conformation at the soil-water interface: a new variable in organic contaminant sorption.
  

ORGANIC MATTER POOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• Impact of Manure Application and Crop Rotation on the Distribution of Carbon, Nitrogen, and Phosphorous Among Soil Organic Matter Pools.
  

ORGANIC MATTER QUALITY - Back to N - O or Back to All Keywords or Back to the Main Index

• Extraction of Humic Acid Fractions Based on Binding to Soil Polyvalent Cations.
  

ORGANIC MATTER TURNOVER - Back to N - O or Back to All Keywords or Back to the Main Index

• Organic matter turnover in whole soil and light fraction from a silvo-pastoral system in semi-arid NE Brazil.
  

ORGANIC N - Back to N - O or Back to All Keywords or Back to the Main Index

• Synchronization of N Mineralized from Green Manure with N Uptake by Spring Wheat.
  
• Net Mineralization of liquid dairy manure organic N.
  

ORGANIC N CREDITING - Back to N - O or Back to All Keywords or Back to the Main Index

• Using the PSNT and Nitrogen Crediting to Improve Corn Nitrogen Recommendations.
  

ORGANIC NITROGEN - Back to N - O or Back to All Keywords or Back to the Main Index

• Transformation of Dairy Manure Nitrogen Fractions to Plant Available Forms.
  

ORGANIC P - Back to N - O or Back to All Keywords or Back to the Main Index

• Enzymatically Hydrolysable Organic Phosphorus in Sequentially Extracted Fractions of Swine Manure and Soils.
  
• Manure Phosphorus Concentration and Its Effects on Soil Chemical and Depth Phosphorus Distribution.
  

ORGANIC PHOSPHORUS - Back to N - O or Back to All Keywords or Back to the Main Index

• Organic Phosphorus Composition and Potential Bioavailability in Western US Soils.
  
• Effect of Soil Type and Temperature on Phosphorus Dynamics in Soils Treated with Broiler Litter.
  

ORGANIC SOIL AMENDMENTS - Back to N - O or Back to All Keywords or Back to the Main Index

• Stabilizing Earthen Channels Using Organic Amendments: Cost Benefit Analysis.
  

ORGANIC SOILS - Back to N - O or Back to All Keywords or Back to the Main Index

• Soil Organic Matter Oxidation Potential with Fluctuating Water Table Under Sugarcane.
  
• Organic matter processes in arboreal Histosols of the coast redwood rainforest.
  
• Evaluation of platinum electrode measurements in wetland soils.
  

ORGANIC SULFUR SPECIATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Assessment of organic sulfur species in forest soils using NEXAFS and an ion-sensitive electrode.
  

ORGANIC-C - Back to N - O or Back to All Keywords or Back to the Main Index

• Mapping soil pH buffering capacity with remote sensing.
  

ORGANICS - Back to N - O or Back to All Keywords or Back to the Main Index

• Regulating Phytoremediation of Soil and Sediments.
  

ORGANO-CLAY COMPLEXES - Back to N - O or Back to All Keywords or Back to the Main Index

• NMR studies of organo-mineral complexes and soil surfaces.
  
• Hybrid Organic-Inorganic Derivatives of LDHs and Dodecylbenzenesulfonate: Preparation and Adsorption Characteristics.
  

ORGANOCLAYS - Back to N - O or Back to All Keywords or Back to the Main Index

• Sorption-desorption of isoxaflutole and a diketonitrile degradate on organoclays.
  

ORNAMENTAL GRASSES - Back to N - O or Back to All Keywords or Back to the Main Index

• Ornamental Grass Tolerance to Clopyralid, Isoxaben, and Isoxaben plus Trifluralin.
  

ORYZA - Back to N - O or Back to All Keywords or Back to the Main Index

• Alien introgression in rice: characterization of parental genomes and homoeologous pairing through genomic in situ hybridization.
  

ORYZA SATIVA - Back to N - O or Back to All Keywords or Back to the Main Index

• Utilizing DNA Markers to Further Identify the Blast Resistance in Indica Rice and Other Oryza spp. Germplasm
  

OUT-CROSSING - Back to N - O or Back to All Keywords or Back to the Main Index

• Pollen-Mediated Gene Flow in Maize as Influenced by Time and Distance.
  

OUTREACH AWARENESS - Back to N - O or Back to All Keywords or Back to the Main Index

• Expanding Outreach and Awareness.
  

OVEN-DRYING - Back to N - O or Back to All Keywords or Back to the Main Index

• Efficient Sampling Techniques for Turfgrass Carbohydrate Analysis.
  

OVERLAND TRANSPORT - Back to N - O or Back to All Keywords or Back to the Main Index

• Field-scale Monitoring and Simulation of the Overland Transport of Bromide and Pathogens.
  

OVERSEEDING - Back to N - O or Back to All Keywords or Back to the Main Index

• Using salinity gradient irrigation to evaluate the impact of water quality, turf variety and overseeding practices on turfgrass performance.
  
• Transition Date of Axcella Annual Versus Perennial Ryegrass in a Bermudagrass Sod in Texas.
  

OXALATE OXIDASE - Back to N - O or Back to All Keywords or Back to the Main Index

• Genetic Transformation of Peanut with the Gene for Oxalate Oxidase.
  

OXIDATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Effects of Chemical Remediation on Surface Chemistry of Clay Minerals and Soils.
  

OXIDATION/REDUCTION POTENTIAL - Back to N - O or Back to All Keywords or Back to the Main Index

• Kinetics of Pyrite Oxidation in the presence of Reducing Agents.
  

OXIDATION-REDUCTION - Back to N - O or Back to All Keywords or Back to the Main Index

• Near-Surface Moisture Effects on Phosphorus Losses Under Simulated Rainfall.
  

OXISOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• BASELINE CONCENTRATION OF HEAVY METALS IN BRAZILIAN LATOSOLS.
  
• Sequential Extraction of Zn in Oxisols from Brazil.
  
• Binding Energy (BE) and Maximum Phosphorus Adsorption Capacity (MPAC) in a Toposequence of Soils Derived from Basalts South of Brazil.
  
• Elevated Phosphorus Impacts the Biological and Physical Properties of Certain Oxisols.
  

OXYANIONS - Back to N - O or Back to All Keywords or Back to the Main Index

• Oxyanion Immobilization in Soil by Reactions with Zero-Valent Iron Corrosion Products.
  

OXYGEN - Back to N - O or Back to All Keywords or Back to the Main Index

• Importance of nitrifier denitrification for nitrous oxide production.
  

OXYGEN MEASURING SYSTEM - Back to N - O or Back to All Keywords or Back to the Main Index

• In-situ Oxygen Sensors for Use in Biotreatment of Fuel Oxygenates in Groundwater.
  

OXYGEN RESPIRATION - Back to N - O or Back to All Keywords or Back to the Main Index

• Oxygen Respiration and Hydraulic Properties by Individual Soil Aggregates from Tilled and No-Tilled Agroecosystems.
  

OXYSOLS - Back to N - O or Back to All Keywords or Back to the Main Index

• The Main Agro-Ecological Zones and Associated Benchmark Soils of Ghana.
  

OZONED WATER - Back to N - O or Back to All Keywords or Back to the Main Index

• Effect of ozonated and oxygenated water on turf growth and root zone chemistry.