DAP fertilizer available in Pakistan contains__________________________?
Correct answer: B. 18% N & 46% P2O5
- A. 46%N & 18%P2O3
- B. 18% N & 46% P2O5
- C. 100%P2O3
- D. 50%P2O3
Explanation
Commercial DAP is conventionally graded 18-46-0, meaning 18% nitrogen and 46% phosphorus expressed as P₂O₅. The phosphorus figure is not elemental phosphorus and should not be written as P₂O₃.
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