- Missouri Association of Soil and Water Conservation Districts(link is external)
- Soil and Water Conservation Program
- Missouri Department of Natural Resources (DNR)
- National Association of Conservation Districts(link is external)
- Missouri Department of Conservation
- Natural Resources Conservation Service (NRCS)(link is external)
- United States Department of Agriculture (USDA)(link is external)
- Farm Service Agency (FSA)(link is external)
- University of Missouri Extension(link is external)
- University of Missouri Extension-Linn County(link is external)
- University of Missouri Extension-Custom Rates(link is external)PDF Document
- University of Missouri Extension-Soil and Plant Testing(link is external)
- University of Missouri-CARES(link is external)
- NRCS- Web Soil Survey(link is external)
- NRCS-Plant Database(link is external)