tillage, no-till, nitrogen placement, corn, wheat, soybean
In 2018, adding nitrogen (N) greatly improved average wheat yields with about a 10% increase with knife compared to broadcast application methods. Even though tillage did not affect wheat yields, soybean yield was about 10% greater with no-till.
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Sweeney, D. W. and Ruiz-Diaz, D.
"Tillage and Nitrogen Placement Effects on Yields in a Short-Season Corn/Wheat/Double-Crop Soybean Rotation,"
Kansas Agricultural Experiment Station Research Reports: