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Soil-conservation farming involves no-till farming, "green manures" and other soil-enhancing practices which make it hard for the soils to be equalized. Such farming methods attempt to mimic the biology of barren lands. They can revive damaged soil, minimize erosion, encourage plant growth, eliminate the use of nitrogen fertilizer or fungicide ...
Tilling the soil, or tillage, is the breaking of soil, such as with a plough or harrow, to prepare the soil for new seeds. Tillage systems vary in intensity and disturbance. Conventional tillage is the most intense tillage system and disturbs the deepest level of soils. At least 30% of plant residue remains on the soil surface in conservation ...
No-till farming is a soil conservation practice used in the United States, with adoption increasing due to its potential to reduce costs and improve soil health. By minimizing soil disturbance, no-till farming reduces the number of passes required with machinery, leading to lower fuel and labor expenses.
The formation of soil aggregates is important for erosion control, as they are better able to resist raindrop impact, and water erosion. Soil aggregates also reduce wind erosion, because they are larger particles, and are more resistant to abrasion through tillage practices. [34] The effect of crop rotation on erosion control varies by climate.
Minimum tillage is a soil conservation system like strip-till with the goal of minimum soil manipulation necessary for a successful crop production.It is a tillage method that does not turn the soil over, in contrast to intensive tillage, which changes the soil structure using ploughs.
Strip-till – Narrow strips are tilled where seeds will be planted, leaving the soil in between the rows untilled. [11] Mulch-till - Soil is covered with mulch to conserve heat and moisture. 100% soil disturbance. Rotational tillage – Tilling the soil every two years or less often (every other year, or every third year, etc.). [11]
Soil conservation techniques which are employed include changes of land use (such as replacing erosion-prone crops with grass or other soil-binding plants), changes to the timing or type of agricultural operations, terrace building, use of erosion-suppressing cover materials (including cover crops and other plants), limiting disturbance during ...
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.
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