NITROGEN is the most important nutrient for plant development, as it is the main element of vital biomolecules such as proteins and chlorophyll. Therefore, Nitrogen is a necessary element in all the phenological states of the plant, especially in the development of leaves and buds where there is more chlorophyll.
In the plant, Nitrogen is divided into 3 groups:
More than 50% in compounds with high molecular weight (proteins and nucleic acids); the rest as soluble organic Nitrogen (amino acids, amides, amines …) and inorganic Nitrogen (mainly nitrate and ammonium ions). Its content in the total dry weight of the plant ranges between 1.5 and 5%.