High stocking density cattle (IMAGE) American Society of Agronomy Caption The high stocking density treatment had 24 cattle grazing corn fields for 15 days. This treatment increased future soybean yields slightly, perhaps because removing the corn residue warmed the soil. Credit Morgan Grabau Usage Restrictions For use with this story only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.