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WAEC Agricultural Science 2004 Question 26

Question 26

Soil Fertility and Plant Nutrition

In cassava farming, rapid growth is promoted at the expense of tuber formation by the application of

  1. A.potassium fertilizer
  2. B.nitrogen fertilizer
  3. C.complete fertilizer
  4. D.phosphate fertilizer
Show the answer and explanation

Answer: B (nitrogen fertilizer)

Explanation

Too much nitrogen gives leafy growth and fewer, smaller tubers.