Leaving a basal plant stub during harvesting to mitigate wind and water erosion is known as:
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Answer: B. Mulching
Explanation
Leaving basal plant stubs and crop residue on soil surfaces protects against erosive forces. This protective surface cover intercepts falling raindrops and reduces surface runoff velocity significantly. Mulching effectively conserves soil moisture and prevents wind and water erosion on agricultural lands. Agricultural conservation tillage leaves organic residues intact rather than turning the soil completely. Stubble mulching is widely practiced in dryland farming regions to prevent severe wind erosion. Organic surface covers moderate soil temperatures and suppress weed growth between planting seasons.
Farmers adopt mulching techniques to preserve long-term soil fertility and reduce synthetic fertilizer needs. Soil conservation programs subsidize residue management practices to combat global desertification trends. Watershed protection projects rely on surface mulching to minimize sediment runoff into streams. Ley farming involves rotating cereal crops with grass pastures to restore degraded soil structure. Basin listing creates small earthen dams across slopes to trap runoff rather than leaving plant stubs. Strip cropping alternates strips of different crops across slopes to slow down surface water runoff.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
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