Nitrogen Fertilizer: Timing, Source, and Rate for a Winter Cereal Cover Crop

Conservation tillage is one component utilized throughout the United States to maintain a minimum of 30 % residue on the soil surface. This residue, typically from previous crops, helps reduce soil erosion from water and wind, decrease labor and energy inputs, increase soil water availability for subsequent crops, and enhance soil quality (Kern and Johnson, 1993; Reeves