Sjoerd Duiker, Dept of Crop and Soil Science, Pennsylvania State Univ., Penn State University, 116 ASI Building, University Park, PA 16802-3504
Since 1978, a trial has been conducted in Central Pennsylvania comparing corn yields with moldboard plowing, chisel-disking, disking, and no-tillage. In this presentation, crop yields and soil physical properties after more than 25 years of continuous management will be presented.