Which soil preparation practice can be used to prevent erosion?

Conservation tillage is an effective soil preparation practice designed specifically to minimize soil erosion. This method reduces the amount of soil disturbance and leaves crop residues on the surface, which acts as a protective barrier against wind and water erosion. By maintaining a cover of organic matter, conservation tillage improves soil structure, enhances moisture retention, and promotes the health of soil ecosystems. The residues left on the surface also contribute to reducing runoff, which is a significant factor in soil erosion.

In contrast, practices such as subsoiling, puddling, and deep plowing involve significant soil disturbance that can increase erosion risk. Subsoiling is aimed at breaking hardpan layers in the soil which may improve drainage but can expose soil to erosion. Puddling is commonly used in rice cultivation to create a water-retaining layer, but it can lead to soil compaction and increased erosion in other contexts. Deep plowing buries crop residues and can disrupt natural soil structures, making the soil more prone to erosion.