Question

Very short answer type.
Name any two macronutrients and state their importance in plant nutrition.

Answer 1

(i) Nitrogen : an integral part of amino acids, proteins, vitamins, coenzymes, nucleotides, alkaloids and chlorophyll.
(ii) Magnesium : a constituent of chlorophyll molecule; an activator for many enzymes like ATPase, helps in photosynthesis and carbohydrate metabolism.