Global Maize Project in the United States: West Lafayette, Indiana

The experimental area is located on a Mollisol with cultivation of maize/soybean system. The site is divided into two areas that are planted to maize in alternate years after soybean. Compared to farmer practice (FP), ecological intensification (EI) utilized a 25% higher plant population, a nitrification inhibitor, an additional N application at growth stage V6, and a 37% higher N rate. Grain yields in 2013 for both management practices were not significantly different: 12,697 kg dry matter (DM)/ha for EI and 12,612 kg DM/ha for FP. Total uptakes of N, P and K were also not significantly different.