Hydro Cal Mg is a liquid product with a high concentration of free amino acids, calcium and magnesium, whose organic fraction helps improving the assimilation of the mineral component by plants. Amino acids, in fact, besides their main biostimulant action, are essential for the process of transmission of the mineral fraction into the cells and the utilization sites, helping it in overcoming the chemical-physical barriers of leaf cuticle, cell wall and lymphatic system. Hydro Cal Mg has been conceived to contrast the main plant diseases caused by calcium deficiencies (apical rot in tomatoes, dried leaves in melons, tip burn in lettuce) or magnesium deficiencies (dryness of grape rachis, chlorosis of basal leaves in horticulture and fruit cultivation).