United States Department of Agriculture
Natural Resources Conservation Service
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Agronomy, Wind and Water Erosion

Check out our series Estimating Random Roughness in the Field, a collection of photographs taken from USDA Agriculture Handbook 703 "Predicting Soil Erosion by Water:  A Guide to Conservation Planning with the Revised Universal Soil Loss Equation (RUSLE).

Check out the Wind and Water Erosion Pictures, 1935-1975, a collection of photographs taken by USDA Natural Resources Conservation Service staff across the USA between 1935 and 1975.

These documents require Adobe Acrobat, Microsoft Word or Microsoft Excel.

Adobe Acrobat DocumentCORE 4 (9.4 MB) - Conservation Practices:  The Common Sense Approach to Natural Resource Conservation
Microsoft Word DocumentWind Erosion Equation (WEQ) Guidance Document (82KB) - Use of Microsoft Excel Spreadsheet Model
Microsoft Excel SpreadsheetAgronomy Directory (59KB) - Complete listing of all NRCS Agronomy experts across the United States


CORE 4 Conservation
The Common Sense Approach to Natural Resource Conservation

National Certified Crop Adviser Program - This site contains several useful areas of information that will be of interest.  Topics of interest include Weed Biology.  The end of this section contains links to excellent identification slides for various weed species.  Other sections that should be of interest include Herbicide Mode of Action, Management of Plant Diseases, Management of Insects, and IPM Principles.

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