NPK means a ______________ fertiliser?
Correct answer: D. Mixed
- A. Solid
- B. Potassic
- C. Liquid
- D. Mixed
Explanation
NPK denotes a fertiliser supplying nitrogen, phosphorus and potassium, generally made as a mixed or compound fertiliser. “Potassic” refers only to potassium-containing fertilisers, not the complete NPK group.
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