Question

Which of the following are primary nutrients for plants?

(a) Calcium	(b) Phosphorus
(c) Sulphur	(d) Potassium
(e) Nitrogen	(f) Magnesium

• A. (b), (d) and (e)
• B. (a), (c) and (e)
• C. (b) and (e) only
• D. (4) (a) and (f) only

Answer 1

The correct option is A (b), (d) and (e)

The elements that are required by plants in large quantities are called macronutrients. These include nitrogen, phosphorus, sulphur, potassium, calcium and magnesium. Nitrogen, phosphorus and potassium are called primary nutrients as they are required by plants in higher amounts for growth as compared to other macronutrients.