Grassland Test Plot (IMAGE) American Society of Agronomy Caption This is a view of the experimental layout after initiation of warming and precipitation treatments, just prior to the first plant harvest at the site in June 2009. Credit Photo credit Jim Nelson. Usage Restrictions Please 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.