Which one of the following nutrients is not available in fertilizers?
Iron
The correct option is C.
The explanation for the Correct option:
The explanation for the Incorrect option:
Option A:
Nitrogen fertilizers contain nitrogen, which is essential for crop development.
Option B:
Phosphorus is the most important nutrient in phosphorus fertilizers and the amount of effective phosphorus in a fertilizer determines its efficiency.
Option D:
Potassium, as a component of fertilizer, aids in the resistance of plants to disease.
Final answer: Iron is not available in fertilizers.