DERMAFERT NPK 8-8-12 is an organo-mineral NPK fertiliser, obtained from a reaction between mineral components and organic-protein matrices, combining a high level of nitrogen (in the organic, ammoniacal and ureic forms) and a significant content of P from sulphate and K. The mineral elements are fully available and stabilized by organic matrices, which protect them against insolubilisation processes and improves their persistence and mobility in the soil. The product is suitable for the autumn and spring basal fertilisation, as well as for maintenance fertilisation of orchards, vineyards, walnut, hazelnut and for the main vegetable crops, ensuring a modulated release and a prolonged availability of the nutrients.