Soil Web Resources
- Building Soils for Better Crops Ecological Management for Healthy Soils4th edition, by Fred Magdoff & Harold Van Es, Handbook series book 10 (Sustainable Agriculture Research and Education)
- Farmbytes: soil sampling and nutrient guidelinesUniversity of Minnesota Extension
- Soil, Crop and More InformationBilly E. Warrick, Ph.D., former employee of the Cooperative Extension Service in Texas
- Soil and Water Conservation: An Annotated BibliographyMoorberg, Colby J., "Soil and Water Conservation: An Annotated Bibliography" (2019).
- SOIL ATLAS Facts and figures about earth, land and fields 2015The SOIL ATLAS 2015 is jointly published by the Heinrich Böll Foundation, Berlin, Germany, and the Institute for Advanced Sustainability Studies, Potsdam, Germany
- Soil Quality InformationPenn State Extension
- Soils Laboratory Manual: K-State EditionMoorberg, Colby J. and Crouse, David A., "Soils Laboratory Manual: K-State Edition, Version 2.0" (2021)
- Understanding Western Soils
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A series of videos and animations from the New Mexico State University College of Agricultural, Consumer, and Environmental Sciences
- Field Book for Describing and Sampling SoilsVersion 3.0, 9/2012, National Soil Survey Center, Natural Resources Conservation Service,U.S. Department of Agriculture
- Keys to Soil TaxonomySoil Survey Staff. 2014. Keys to Soil Taxonomy, 12th ed. USDA-Natural Resources Conservation Service, Washington, DC
- Web Soil SurveyA Natural Resource Conservation Service, U.S. Dept. of Agriculture resource
- Best Management Practices for Nitrogen Fertilizer in MissouriUniversity of Missouri Extension, Peter Scharf, John Lory
- Menfro : Missouri State SoilSoil Science Society of America
- Missouri NRCS Soils ProgramUSDA Natural Resources Conservation Service Missouri
- Missouri Ozark Forest Soils: Perspectives and RealitiesMOFEP, R. David Hammer
- Soil and Plant Testing LaboratoryUniversity of Missouri Extension
- Soil and Water ConservationMissouri Dept. of Natural Resources
- Soil Health Assessment CenterCollege of Agriculture, Food & Natural Resources, Univ. of Missouri