</i>Agricultural & Environment Letters</i> Cover (IMAGE) American Society of Agronomy Caption Agricultural & Environment Letters promotes rapid scientific communication. Credit ASA, CSSA, SSSA Usage Restrictions With story only, please 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.