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U.S. DEPARTMENT OF AGRICULTURE • AGE 4 OF 4 <br />NATURAL RESOURCES COIISERVATION SERVICE - 04/26/00 <br />PHYSICAL PROPERTIES OF SOILS <br />Endnote -- PHYSICAL PROPERTIES OF SOILS--Continued <br />5. Noncalcareous looms and silt loans that are less than 20 <br />percent clay and sandy clay looms, sandy clays, and heroic <br />soil material. These soils are slightly erodible. Crops <br />can be grown if measures to control wind erosion are used. <br />6. Noncalcareous looms and silt loans that are more than 20 <br />percent clay and noncalcareous clay looms that are less than <br />35 percent clay. these soils are very slightly erodible. <br />Crops can be grown if ordinary measures to control wind <br />erosion are used. <br />1. Silts, noncalcareous silty clay ]dams [hat are less than <br />35 percent clay, and fibric soil material. these soils are <br />very slightly erodible. Crops can be grown if ordinary <br />measures tm control wind erosion are used. <br />8. Soils that are not subject to wind erosion because of <br />coarse fragments on the surface or because of surface <br />wetness. <br />the WIND ERODIBILITY INDEN is used in the wind erosion equation (WEB). the index number indicates the <br />amount of soil lost in tons per acre per year. The range of wind erodibility index numbers is 0 to 300. <br />