Component of a large number of enzymes essential to plant development. It is also involved in chlorophyll biosynthesis and the amount of chloroplasts.
It is also required for N metabolism, both for biological N2 fixation and for nitrate reduction.
Deficiency – The affected leaves present interveinal chlorosis that spreads along the entire length of the leaf blade and reaches the central vein. As the plant grows, several stages of yellowing appear.