Question

Which of the following is a macro nutrient in plant

• A. iron
• B. nitrogen
• C. manganese
• D. zinc

Answer 1

The correct option is B

nitrogen

The correct option is B.

Explanation of the correct option:

1. The nutrients that are required by the plant in greater amounts are known as macro-nutrients.
2. Nitrogen, phosphorous, potassium, sulphur, calcium and magnesium.

Explanation of the incorrect options:

Option A,C,D:

1. The nutrients that are essential for the plant in lesser amounts are known as micro-nutrients.
2. Boron, manganese, chlorine, iron, zinc ,copper, nickel and molybdenum.

Final answer: Nitrogen is the macro nutrient.