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WAEC Agricultural Science 2009 Question 25

Question 25

Soil Fertility and Plant Nutrition

A bag of fertilizer had a ratio of 0:10:0 written on it. This means that the fertilizer contains

  1. A.0 kg of nitrogen, 10 kg of potash and 0 kg of phosphate
  2. B.0 kg of phosphate, 10 kg of nitrogen and 0 kg of potash
  3. C.0 kg of nitrogen, 10 kg of phosphate and 0 kg of potash
  4. D.0 kg of potash, 10 kg of phosphate and 0 kg of nitrogen
Show the answer and explanation

Answer: C (0 kg of nitrogen, 10 kg of phosphate and 0 kg of potash)

Explanation

The figures are always in the order N : P : K, so 0:10:0 means only phosphate (10 kg per 100 kg).