Question

Mulching, an agronomic measure of soil conservation, is very effective because:
1. It protects soil from gully erosion.
2. It protects soil from sheetwash and wind erosion.
3. It helps the soil to retain moisture and nutrients.
Select the correct answer using the code given below.

• A. 2 and 3 only
• B. 1, 2 and 3
• C. 1 only
• D. 1 and 2 only

Answer 1

Answer: (B)

Crop rotation, contour cultivation, stubbles mulching are some methods which are effectively used to control soil erosion. It is an agronomic measure of soil conservation. It minimizes evaporation and increases the retention of moisture and nutrients. It also improves the physical condition of soil. It protects soil from wind and water erosion.

Thus, the correct answer is '1, 2 and 3.'