Which is the best fertiliser for paddy ?
Correct answer: B. Ammonium sulphate
- A. Nitro-phosphate
- B. Ammonium sulphate
- C. Superphosphate
- D. Potassium nitrate
Explanation
Ammonium sulphate is traditionally considered suitable for paddy because it supplies readily available ammoniacal nitrogen and sulphur, while its acidifying effect can benefit many flooded alkaline soils. The other choices are mainly phosphate or potassium sources and do not provide the same primary nitrogen benefit.
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