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JAMB Biology 2005 Question 41

Question 41

Soil

The importance of practising crop rotation in agriculture is to

  1. A.maintain soil fertility
  2. B.improve the nutritional value of crops
  3. C.control soil erosion
  4. D.ensure the growth of crops
Show the answer and explanation

Answer: A (maintain soil fertility)

Explanation

Different crops use different nutrients, and legumes add nitrogen. Rotating crops stops one set of nutrients from being used up, keeping the soil fertile.