By which causes top soil reduced its fertility? Discuss in brief.
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2
Answer:
Soil as such does not lose fertility just by growing crops but it lose its fertility due to accumulation of unwanted and depletion of wanted inorganic salts from the soil by improper irrigation and acid rain water (quantity and quality of water).
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1
Answer:
Effects. Organic matter plays a key role in maintaining soil fertility. It holds nitrogen and sulfur in organic forms and other essential nutrients such as potassium and calcium. ... Off-site losses of nutrients can also occur through soil erosion, run off, leaching and burning of crop residues.
Explanation:
For all the fertility losses there are various causes in the different regions of the country, in totality the major causes to soil fertility decline is a land degradation which is caused through the different agents such as soil erosion, deforestation, overgrazing, sedimentation, continuous farming and pollution
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