Ledamino and Ledamino Zn two potent amino acids of high range, very assimilable by plants and in the case of the product with Zn a powerful tool with marked effect of rooting through the production of tryptophan required in the metabolic pathway of auxins so necessary for the proliferation of fruit roots and vines. Correcting symptoms of Zinc deficiency quickly and effectively, as is the case of short internodes and zigzag growth.