Stand Reduction: National Crop Insurance Services (NCIS) has conducted research for hail adjusting loss instructions for corn that include assessing losses from stand reduction/loss, defoliation, direct damage to stems and ears, etc. Past stand reduction research has led to the development of two loss tables for stand reduction/losses. One applies to stand reduction up through the 10th leaf stage (approx.
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. We collect corn and soybean seeds from field experiments to develop models to improve our ability to predict moisture content at harvest for new corn hybrids and soybean varieties.