is a mineral fertilizer able to offer plants nitrogen, the essential nutritional element for the growth of plants and fruits, and calcium a macro-element that enters the composition of vegetable proteins and whose deficiency determines important alterations of fruits, such as apical rot of tomatoes, bitter pit of apples, drop of fruit. it also carries out a collateral action against the main parasites (insects, fungal diseases, weeds) that could attack plants, compromising their production.