Q. Which of the following is/are primary fertilizer/s?
1.Sulfur
2.Urea
3.Di-Ammonium Phosphate
How many of the statements given above are correct?
Answer: B
Notes:
Explanation: Fertilizers are classified as Primary, Secondary and Micronutrients.
- Primary fertilizers are further classified on the type of nutrients they supply to soil such as nitrogenous (urea), phosphate (Di-Ammonium Phosphate (DAP)) and potassic (muriate of potash (MOP)) fertilizers.
- Secondary fertilizer includes calcium, magnesium, and Sulphur while micronutrients include iron, zinc, boron, chloride etc.
Source: FORUMIAS
