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GCE Agricultural Science 1989 Question 10

Question 10

Soil Fertility and Plant Nutrition

Nitrogen is made available to plants in the form of nitrates through the process of

  1. A.deamination and nitrification
  2. B.ammonification and denitrification
  3. C.deamination and ammonification
  4. D.nitrification and denitrification
  5. E.nitrification and ammonification.
Show the answer and explanation

Answer: E (nitrification and ammonification.)

Explanation

Organic nitrogen is first changed to ammonium (ammonification), then to nitrites and nitrates (nitrification).