6803
9812
Soil erosion and crop productivity
Madison, Wis., U.S.A.
American Society of Agronomy
1985
xxiv, 533p.: ill
Includes bibliographies and index
editors, R. F. Follett and B. A. Stewart
، Soil erosion
، Soil conservation
، Crops and soils
، Crop yields
United States ، Soil erosion
United States ، Soil conservation
United States ، Crop yields
S
623
.
S5737
1985
TI
AU Follett, Ronald F. 1939-
AU Stewart, Bobby Alton 1932-
CL
CL
