Conventional tillage resulted in greater corn yield in 2015 than with reduced tillage or no-till. A tillage × N fertilizer treatment interaction showed that N placement did not affect corn yield in conventional or reduced tillage systems, but subsurface knife N placement in no-till resulted in greater yield than when N was surface-applied.
Sweeney, D. W.
"Tillage and Nitrogen Placement Effects on Yields in a Short-Season Corn/Wheat/Double-Crop Soybean Rotation,"
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