Reducing Row Widths to Increase Yield: Why It Does Not Always Work

C. D. Lee

February 2006

Review

Numerous studies have been conducted to determine if decreasing row widths will increase yields of corn and soybean. Full-season corn yields typically do not increase as row widths decrease south of 43°N latitude in the United States. Soybean yields follow a similar but less consistent trend. Wide rows for full-season corn and soybean in the central and southern United States are usually sufficient for maximum yields.

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