Michael Castellano shares his research findings that soybean crops reduce field emissions of nitrous oxide, a greenhouse gas.

Castellano is an assistant professor of agronomy at Iowa State University and a principal investigator for the USDA-NIFA Sustainable Corn Project.

This resource is part of the USDA-NIFA funded project for climate and agriculture that gathered data from 35 field sites and thousands of farmers in 9 Midwestern states, with the goal of creating a suite of practices for corn-based systems.