Optimal Corn and Soybean Seeding Rates Based on Economic Factors

Feb 09, 2026

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This research investigates optimal seeding rates for corn and soybeans in Illinois and Iowa by analyzing the relationship between seed prices and commodity selling prices. The study focuses on evaluating economic soybean seeding rates and utilizes data from the U of I Monmouth Research Center. Key findings include estimates of seed prices for 2009 and recommendations for achieving final stands with efficient seeding strategies. Insights into how planting population affects net returns are also presented.

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Optimal Corn and Soybean Seeding Rates Based on Economic Factors

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Corn and Soybean Seeding Rates • Research from IL and IA investigating optimal corn and soybean seeding rates based upon price of seed and selling price of commodity
Soybean Economic Seeding Rates Eric Adee, U of I Monmouth Research Center RR soys, pre emerge herbicide, f/b post gly
Economic Soybean Seeding RatesFinal Stand
Soybean Economic Seeding Rates15” rows, (Using 85% Seeding Efficiency) 2006-08 U of I Monmouth Research Center
Seed Price Estimates for 2009 Adapted from Paul Kassel, Iowa State Univeristy
Seed Price Effects on Net Returns at Different Plant Populations. Price= $3.25/bu; Yield= 200 bu/acre. R. W. Elmore & L. J Abendroth. Iowa State University, 2008.