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Farm Progress Reports

Article Title

Corn Row Spacing

Number

RFR A1535

Farm

Northwest and Allee Research and Demonstration Farms

Department

Agronomy

Fields

Crops and Soils

Areas

Corn

Abstract

Corn plant populations have increased at approximately 400 plants/acre per year over the last two decades. Seeding rates are now commonly in the 32,000 to 38,000 seeds/acre range. Additionally, grain yields are increasing at 1.8 bushels/acre per year since 1996. Because corn plant populations and grain yields are increasing, there has been a renewed interest in looking at corn row spacing, seeding rate, and nitrogen rate interactions.

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