FERTIFIELD NPK 8-5-6 BIO is an organo-mineral NPK fertiliser with low chlorine content, obtained through a reaction process between organic matrices and mineral components, designed to increase the agronomic efficiency of organic nitrogen with higher levels and the availability of phosphates and microelements. FERTIFIELD NPK 8-5-6 BIO is a formulation characterised by a high content of organic nitrogen with slow natural release, derived from selected protein matrices (meat and bone meal, hydrolysed leather and hides), which ensure a gradual and prolonged release of nutrients, a balanced presence of highly assimilable phosphates, a potassium source from sulphate with low chlorine content and a high content of organic matter of protein origin (>50%). FERTIFIELD NPK 8-5-6 BIO is particularly suitable for autumn and spring basal fertilisation and can also be used in grassy vineyards thanks to its highly efficient agronomic formulation. This formulation makes the product suitable for use on high value crops that are sensitive to chlorides.