Researcher in Turf Field (IMAGE) American Society of Agronomy Caption Matthew Koch, a graduate student, mixing up salt solution to apply to the perennial ryegrass plants in the background. Credit Courtesy of Stacy Bonos Usage Restrictions For use with 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.