The presence of magnesium facilitates the synthesis of amino acids and cellular proteins and is essential in the production of chlorophyll.
As for the vitamin C, it increases the efficiency of the photosynthesis and allows the plants to better resist to stress, such as heat and intense light.
The vitamin B stimulates the root development, formation of buds, flowering and fructification by improving the growth system of plant.
NPK: 1-5-4