One of the following crops is the most effective in controlling soil erosion:
Correct answer: D. Pigeon pea
- A. Cotton
- B. Maize
- C. Green gram
- D. Pigeon pea
Explanation
Pigeon pea develops a substantial root system and provides relatively good ground cover, helping bind soil and reduce runoff erosion. Cotton and maize are more widely spaced, while green gram generally provides less persistent cover.
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