Two Men Looking at Field (IMAGE) American Society of Agronomy Caption Nathan Mueller (left), a Nebraska extension educator, and Ryan Siefken (right), a Nebraska farmer, assess an on-farm research study in east central Nebraska looking at soybean planting population. Credit Laura Thompson Usage Restrictions For use only with this story 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.