Northwest and Allee Research and Demonstration Farms

Corn Hybrid, Seeding Rate, and Row Spacing Trial

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Corn plant populations have increased at approximately 400 plants/acre per year over the last two decades. Seeding rates now are 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 and seeding rate.


How to Cite: Tuttle, T. & Licht, M. A. (2020) “Corn Hybrid, Seeding Rate, and Row Spacing Trial”, Iowa State University Research and Demonstration Farms Progress Reports. 2019(1).