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WAEC Agricultural Science 2012 Question 16

Question 16

Land Preparation and Cultural Practices

Which of the following statements are advantages of mulching? It
I. controls weeds.
II. conserves soil moisture.
III. increases soil temperature.
IV. reduces soil pH.

  1. A.I and II only
  2. B.I and III only
  3. C.II and IV only
  4. D.III and IV only
Show the answer and explanation

Answer: A (I and II only)

Explanation

Mulch smothers weeds and cuts evaporation; it keeps soil cooler, not hotter.