Soil rebuilding at the Red Plains Erosion Station
1933
Phillips, S.W.
The investigations fall under three major groups, as follows: (1) Fundamental studies of erosion and run-off rates, fertility losses, and the processes involved, under various condition of slope and cropping and tillage practice; (2) experimentation with various vegetative and artificial means of erosion control; and (3) soil rebuilding after depletion by erosion. Under the first head the effects of such factors as length of slope, crop rotations, sod and forest covers, bare surface condition, absence of topsoil, fall and winter plowing, and burning off of woodlands are being quantitatively measured in terms of run-off, wash-off, plant food losses, and crop yields. Along with these measurements are determined also the precise effect of crops, rotations, tillage methods, and terracing on moisture conservation. Under the second heading the effectiveness and cost of strip cropping, contour cultivation, and various other adaptions of cropping and tillage methods, subsoiling, terracing, and the building of dams as implements of erosion control are being worked out.
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