Agricultural Effects It is a highly concentrated solution made from phosphorus and potassium. The phosphite ion induces the synthesis of phytoalexins that confers to the plant a greater resistance against possible diseases caused by fungi ( Phytophthora spp.) and bacteria. It strengthens the stem and the roots, so the da mages caused by pathogens are lower. It also prevents the rotting in high humidity conditions. Potassium intervenes in the water regulation mechanis ms of the plant, in th e formation of proteins and in the synthesis of carbohydrates (starch and cellulose). It serves as an activator in the processes of cellular respiration and enables the active formation of many enzymes involved in metabolic processes. Moreover, it also regulates the transportation of products derived from the photosynthesis by phloem. It enhances the resi stance of the plant to drought, frosts and fungal diseases by increasing the mechanical resistance of the stems and by strengthening the root system. It also participates in the deve lopment and ripening process of the fruits. It is a fertilizer that promotes the natural defenses of the plant which strengthens its resistance against diseases.