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WAEC Agricultural Science 2013 Question 12

Question 12

Soil Fertility and Plant Nutrition

Soils can become acidic as a result of the continuous application of

  1. A.single superphosphate.
  2. B.sulphate of ammonia.
  3. C.muriate of potash.
  4. D.NPK 15:15:15.
Show the answer and explanation

Answer: B (sulphate of ammonia.)

Explanation

Ammonium in sulphate of ammonia is converted to nitrate, releasing acid into the soil.