It has several functions throughout the plant cycle: it acts on respiration and energy production, on cell division, intensifying it; it enters the composition of some reserve substances, such as albuminoids and starch; provides strength and rigidity to cereal stems; facilitates flowering; increases fruiting; speeds up maturation; intensifies the resistance of plants to diseases; contributes to the development of the root system and the general health of the plant.
Deficiency – Young leaflets with a dull, bluish-green color and older leaflets with a lighter green color. The leaflets of older leaves may have chlorotic interveinal areas, with small dark punctuations. Stems shorter and thinner than normal, less plant development. Symptoms develop from bottom to top of the plant.