A Potassic fertiliser contains 50% K2O. It could be _________________?
Correct answer: A. Potassium sulphate
- A. Potassium sulphate
- B. Potassium chloride
- C. A mixture of NaCl + KCl
- D. None of these
Explanation
Commercial potassium sulphate is commonly graded at about 50% K2O equivalent, whereas potassium chloride is normally about 60% K2O equivalent. Therefore the stated potassic fertiliser corresponds to potassium sulphate.
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