______________ is the most suitable fertiliser for paddy?
Correct answer: B. Ammonium sulphate
- A. Urea
- B. Ammonium sulphate
- C. Superphosphate
- D. Potassium nitrate
Explanation
Ammonium sulphate is well suited to paddy because it supplies both nitrogen and sulphur and has an acidifying effect that is useful in many flooded rice soils. Urea supplies more nitrogen per unit mass but lacks sulphur.
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