The purpose of this study is to evaluate different methodologies for developing variable rate seeding prescriptions in corn. Three prescription methods will be evaluated on yield and economics compared to a farmer chosen uniform rate. The three variable rate methods are normalized yield, topographic wetness index, and Corn Suitability Rating. This will be conducted in central Iowa in 2018 and 2019.
The quality and moisture content of the seeds at harvest can significantly influence profitability.
The overall goal of this project is to identify management practices to increase soybean yield potential and close gaps in Iowa.