Question

Write two effects of drainage on soil.

Hint:

Drainage is essential in heavy clay soils and irrigated areas to maintain crop productivity.

Answer 1

Step 1: Understand soil drainage.
Drainage refers to the removal of excess surface or groundwater from the soil to maintain optimum moisture for plant growth.
Step 2: Effects of drainage.
1. Improves aeration: Excess water is removed, which increases oxygen availability in the root zone. This helps root respiration and nutrient uptake.
2. Prevents waterlogging: Prevents soil saturation and anaerobic conditions that can cause root diseases and yield losses.
Step 3: Conclusion.
Thus, the two major effects are better aeration and prevention of waterlogging.