In which practice at least 30% of soil surface should remain covered with crop residue before and after planting the next crop to reduce soil erosion?
Conservation tillage, or minimum tillage, is a broadly defined practice that includes no-till, strip till, ridge till, and mulch till systems. These techniques maintain plant residues on at least 30% of the soil surface after tillage activities. Conservation tillage has been defined as any tillage system that leaves at least 30% of residue on the soil surface. It includes a number of tillage systems such as no-till, minimum tillage, mulch tillage, strip tillage, vertical tillage, and ridge tillage. Another modern farming practice is reduced tillage or no-till farming, where crop residues are left on the surface and planting is carried out without soil tillage. Crop residue management and conservation tillage are on the positive side of the balance. When adequate residues are available and conservation tillage is used, soil erosion is greatly reduced and water conservation is enhanced. Crop residue management through conservation agriculture can improve soil productivity and crop production by maintaining SOM levels. Two significant advantages of surface-residue management are increased OM near the soil surface and enhanced nutrient cycling and retention. Conservation tillage is a method of soil cultivation where leaves of the previous year's crop residue are left on the soil or field before & after planting the next crop to reduce soil erosion & runoff , as well as other benefits such as carbon sequestration.
Soil conservation practices are tools the farmer can use to prevent soil degradation and build organic matter. These practices include crop rotation, reduced tillage, mulching, cover cropping, and cross-slope farming. Mulching is the practice of planting trees, shrubs, grasses, etc. or covering plain or recently planted soils with wood, gravel, hay, straw, etc. to prevent soil erosion. Soil moisture retains soil density as well as increases its stickiness which will prevent it from eroding away.Conservation tillage means any minimal tillage system that leaves sufficient crop residue to cover the soil surface by at least 30%. No-till farming, in which the soil is left undisturbed by tillage and the residue is left on the soil surface, is the most effective soil conservation system. Conservation tillage has been defined as any tillage system that leaves at least 30% of residue on the soil surface. It includes a number of tillage systems such as no-till, minimum tillage, mulch tillage, strip tillage, vertical tillage, and ridge tillage. Mulch tillage is a system in which crop residues are left on the surface, and subsurface tillage leaves them relatively undisturbed. In dry land areas, a maximum amount of mulch is left on the surface; in more humid regions. Conservation tillage is any method of soil cultivation that leaves the previous year's crop residue on fields before and after planting the next crop to reduce soil erosion and runoff, as well as other benefits such as carbon sequestration.Crop residue absorbs raindrop impact and keeps the wind off the soil surface. This reduces soil particle detachment, reducing erosion from the forces of water and wind. By protecting the soil surface, surface crusting is also reduced, improving infiltration and decreasing runoff.Cover crops are a great tool that farmers can use to minimize soil movement off of field. Active roots in the soil hold the soil from water erosion while above ground growth shields soil movement from wind erosion.
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