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JAMB Biology 1993 Question 43

Question 43

Soil

Soil fertility can be conserved and renewed by

  1. A.yearly monocropping
  2. B.crop rotation and cover crops
  3. C.bush burning to remove unwanted debris
  4. D.avoiding artificial manures.
Show the answer and explanation

Answer: B (crop rotation and cover crops)

Explanation

Rotating crops (including legumes) and keeping a cover crop restores nutrients and protects the soil from erosion.