Which of the following statements regarding the drainage system are correct ?
A. It maintains favourable salt and air environments in the crop root zone
B. It does not promote beneficial soil bacteria activity
C. It allows for timelier field operations
D. Crop yields are increased because of improved water management and uptake of plant nutrients
E. There is more surface runoff and soil erosion on drained land
Choose the correct answer from the options given below:
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A simple way to analyze drainage benefits:
Drainage replaces excess water with air.
More air in the soil promotes beneficial aerobic bacteria and healthy root growth, which directly increases crop yields.