PROTHOS is a formula based on manganese and zinc. totally bioavailable. and capable of exercising a marked biological activity. Applied during the vegetative phases. improves translocation within the plant. allowing a strengthening of plant tissues. stimulating fruit setting and also promoting the development of the root system. Applied during fruit development, it increases their quality, caliber and appearance. Thanks to its particular formulation, it makes the treated plants more resistant not only to adverse climatic conditions and parasitic attacks. but also to poor water availability.