Petro 443 CaO/MgO is an organic fertilizer that gives nutrients to plants in a balanced and constant manner over time. The premium raw materials are carefully selected to determine a programmed release of the nutrients, since they are characterized by different net rates of mineralization. Calcium, and Sulphur, together with the humic fractions of Petro 443 CaO/MgO, have a structuring effect on the soil and a “desalinating” and “unlocking” effect towards the nutrients, while the presence of Magnesium improves the crop’s photosynthetic efficiency. Furthermore, Petro 443 CaO/MgO is enhanced by the presence of RyZea, an exclusive technology that enriches the product with phytostimulating molecules which improves productivity of the crops.