From Iowa State University Extension and Outreach - Soil survey and digital soil data: soil suitability and interpretations. In addition, an overview of Corn Suitability Rating (CSR) in Iowa is provided to give further understanding. Resources MapsWeighted Average Corn Suitability Ratings, State Maps Understanding CSRProvides tools and resources to calculate corn suitability rating Introduction of CRS and CRS2 Categories Data and GISGuidebooks or Reports/MemosIowaRuralAgriculture, Land Use, and EnvironmentKeywords: AgriculturalRural