Fertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers.
Which one of the following nutrients is usually not available in fertilizers?

Question

Fertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers. Which one of the following nutrients is usually not available in fertilizers?

Accepted Answer

(A) Iron

Answer

(B) Potassium

Answer

(C) Nitrogen

Answer

(D) Phosphorus