Botany - Mineral Nutrition Question with Solution | TestHub

Nitrogen is the essential nutrient element required by plants in the greatest amount. It is absorbed mainly as NO₃^–, though some are also taken up as NO₂^– or NH₄⁺. Nitrogen is required by all parts of a plant, particularly the meristematic tissues and the metabolically active cells. Nitrogen is one of the major constituents of proteins, nucleic acids, vitamins and hormones.