NPK has the unique ability to enrich the soil with Nitrogen, Phosphorus and Potash. It efficiently fixes atmospheric nitrogen, solubilizes insoluble and chemically fixed phosphates and has the ability to mobilize and solubilize soil potash and insoluble potash compounds thus making all three of these essential nutrients available to the plant in a ready, available form. It also enhances the availability of Mn, Mg, Fe, Mo, Bo, Zn and Cu, among others, in the soil. NPK provides the major nutrients to the soil which results in higher yield. NPK produces certain growth promoting substances such as Thiamine, Indol and Acetic Acid which help impart resistance to the plant from plant pathogens such as Alternaria and Fusarium. It produces organic acids like Citric, Tartaric, Malic which increase the availability of phosphates in the rhizosphere.