Mineral Nutrition Question 4
4. In which of the following, all three are macronutrients?
[2016]
(a) Boron, zinc, manganese
(b) Iron, copper, molybdenum
(c) Molybdenum, magnesium, manganese
(d) Nitrogen, calcium, phosphorus
Show Answer
Answer : d
Hints & Solution
(d) Nitrogen, phosphorus, potassium, calcium, sulfur and magnesium are the macronutrients. The essential elements can be divided into macronutrients and micronutrients. Nutrients that plants require in larger amounts are called macronutrients. About half of the essential elements are considered macronutrients: carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Macronutrients are essential for plant growth and a good overall state of the plant. The primary macronutrients are Nitrogen (N), Phosphorus $(P)$, and Potassium (K). Nitrogen is essential for plant development, since it plays a fundamental role in energy metabolism and protein synthesis.
