Researcher in Turf Field (image) American Society of Agronomy Share Print E-Mail 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. Share Print E-Mail 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.