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During the second session of the 74th Congress, the U.S. Congressional session amended the Soil Conservation Act of 1935 by passing Pub. L. 74–461 and renaming the legislation the Soil Conservation and Domestic Allotment Act with the express purpose of encouraging the use of soil resources in such a manner as to preserve and improve fertility ...
The rows formed slow surface water run-off during rainstorms to prevent soil erosion and allow the water time to infiltrate into the soil. Soil conservation is the prevention of loss of the topmost layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination
Soil management is the application of operations, practices, and treatments to protect soil and enhance its performance (such as soil fertility or soil mechanics). It includes soil conservation , soil amendment , and optimal soil health .
This may cause in an increase of fertilizer use. [9] Soil biodiversity is also influenced by reduced soil aeration. Severe soil compaction may cause reduced microbial biomass. [30] Soil compaction may not influence the quantity, but the distribution of macro fauna that is vital for soil structure including earthworms due to reduction in large ...
The runoff curve number is based on the area's hydrologic soil group, land use, treatment and hydrologic condition. References, such as from USDA [1] indicate the runoff curve numbers for characteristic land cover descriptions and a hydrologic soil group. The runoff equation is:
The Soil Conservation Service worked with state governments and universities with established agriculture programs, such as the University of Nebraska, to promote the method to farmers. By 1938, the introduction of new agricultural techniques, such as contour plowing, had reduced soil loss by 65% despite the continuation of the drought.
Tilling can create a flat seed bed or one that has formed areas, such as rows or raised beds, to enhance the growth of desired plants. It is an ancient technique with clear evidence of its use since at least 3000 B.C. [8] No-till farming is not equivalent to conservation tillage or strip tillage. Conservation tillage is a group of practices ...
The Soil and Water Conservation Act (RCA) is a 1977 law (P.L. 95-192) that requires the United States Department of Agriculture (USDA) to periodically prepare a national plan for soil and water conservation on private lands based on an inventory and appraisal of existing resource conditions and trends. [1]