NITROSPID is a formulation based on mycorrhizae and rhizosphere bacteria (Azospirillum brasilense and Azotobacter salinestris). It enhances the plant’s nitrogen-fixing capacity by supplying additional colonies of nitrogen-fixing bacteria that initiate the nitrogenase process, converting atmospheric molecular nitrogen into ammoniacal nitrogen, which is then made available to the plant through nitrification and nitrate formation. Furthermore, the use of VS technology ensures greater product persistence by providing a plant-based substrate that adheres effectively to the leaf and creates an optimal biotope for the proliferation of nitrogen-fixing bacteria.