The importance of magnesium (Mg): it is essential for photosynthesis; It is a component of chlorophyll, a green pigment, an active participant in the photosynthetic process and helps the absorption of phosphorus.
Increases BNF (Biological Nitrogen Fixation). Increases N-protein and decreases N-mineral in the plant.
Magnesium (Mg) deficiency initially causes a pale green color at the edges, then passes to marginal chlorosis in older leaves, and progresses to between the veins. Yellowing begins with the lower leaves and progresses to the young leaves. This is because magnesium (Mg) is mobile in the plant.