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Soil-Depleting, Soil-Conserving, and Soil-Building Crops.
Discusses soil conservation in a clear and concise manner. Discusses soil building, soil conserving, and soil depleting crops as well as the minerals to be found in soil.
Date:
September 1938
Creator:
United States. Bureau of Plant Industry.
System:
The UNT Digital Library
Legumes in Soil Conservation Practices.
Describes measures for preventing soil erosion through the planting of legumes.
Date:
1938
Creator:
Pieters, A. J.
System:
The UNT Digital Library