Question

Minerals required by a plant in small quantity are called as

• A. Macronutrients
• B. Micronutrients
• C. Manures
• D. Fertilizers

Answer 1

The correct option is B Micronutrients

Macronutrients are minerals which are required in large quantity and its concentration is 0.2% to 4% of dry weight. Micronutrients are minerals which are required in small quantity, requiring less than 0.02% of dry weight.

Macronutrients include nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg). Micronutrients include boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni).

Manure is an organic matter which is used in fertilizing the land. It is mainly composed of animal waste product.

Fertilizers are substances that are applied to the soil to supply one or more nutrients to plants.

Thus, the correct answer is option B.