A cover crop rotations study was conducted to determine if Coastal Plains soils could meet the challenge of cash cropping most seasons while also advancing soil organic matter and cation exchange capacity.
The rotations were Sudex-Rye-Soybean-Rye-Corn-Rye-Soybean-Wheat-Corn-Rye-Sudex-Wheat–Alfalfa. Soil organic matter remained unchanged the first three years but started to rise in year four. By year seven, soil organic matter had increased by 40 percent. Soil cation exchange capacity increased by 50 percent during the study period.
USDA NE-SARE Cover Crop Rotations Study Results
