Which one of the following is a mixed fertilizer?
Reviewed by Dalvoy
UPSC Civil Services preparation
- ACAM
- BUrea
- CAmmonium Sulphate
- DNPKCorrect
Explanation
NPK is the correct answer because it is a mixed fertilizer containing three primary plant nutrients: Nitrogen (N), Phosphorus (P), and Potassium (K).
In contrast, the other options are straight fertilizers because they provide only a single primary nutrient. Urea and Ammonium Sulphate provide only Nitrogen, while CAM (Calcium Ammonium Nitrate) is also a nitrogenous fertilizer. Mixed fertilizers like NPK are produced by physically or chemically mixing two or more straight fertilizers to provide a balanced nutrient profile for crops in a single application.
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