Crop Diversity (IMAGE) Kansas State University Caption A study by Kansas State University, the US Department of Agriculture and North Dakota State University examined crop diversity data from Farm Resource Regions developed by the USDA Economic Research Service. Credit K-State Research and Extension Usage Restrictions None 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.