Is nitrogen is important plant nutrients

Nitrogen is an important plant nutrient which is assimilated by most of the plants as nitrate and ammonium ions. Organic matter is the store house of all nitrogen in the soil. Regardless of the form of nitrogen absorbed by plants, it is reduced to the  -N=, NH- , -NH₂ forms and then forms more complex compounds and ultimately leads to formation of proteins. In addition, nitrogen is present in many biomolecules such as chlorophyll, nucleotides, phosphatides (phospholipids) and alkaloids, as well as many enzymes, hormones and vitamins. These biomolecules are of great physiological importance in metabolism