POLYDREEN is a vegetable biopromoter. with a high content of organic nitrogen, amino acids, peptides, chelated manganese, boron and enriched with L-Tryptophan, an amino acid which favors the biosynthesis of auxins and proteins. POLYDREEN has a positive effect on the physiological activities of the plants as well as enhances the metabolism of the treated crops, POLYDREEN makes the plants more vigorous and resistant to stress of various kinds, and is recommended in the phases of growth, fruit setting, fruit enlargement and rooting having multiple qualities that contribute to favoring an excellent quantitative yield.