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WAEC Agricultural Science 1993 Question 5

Question 5

Farming Systems

Which of the following statements about crop rotation is not correct?

  1. A.It involves alternating legumes with non-legumes
  2. B.The use of legumes in rotation helps to maintain soil fertility
  3. C.It encourages the build up of pests and diseases of crops
  4. D.A good rotation system minimizes exposure of soil to erosion
  5. E.It reduces infestation of land on rotation by weeds.
Show the answer and explanation

Answer: C (It encourages the build up of pests and diseases of crops)

Explanation

Rotation breaks pest and disease cycles; it does not encourage them.