This research was done under field conditions, from December 2012 through February 2013. The objective was to evaluate the yield response of soy bean (Glycine max [L.] Merrill), variety “INCASOY-24”, to the application of different doses of FitoMás-E, in a randomized block experimental design with 4 treatments: T1 (control), T2 (1 L.ha-1), T3 (1.5 L.ha-1) and T4 (2 L.ha-1), and 4 replications. The bioestimulant was applied to foliage early in the morning from the 10th day after germination. The data were analyzed statistically with Statistica, ver. 8.0 software. When the indicators used showed significant differences, the Duncan’s Multiple Range Test was applied to p < 0.05. The results of each evaluated variable showed a significant effect of FitoMás-E on the cultivar. The best results were achieved where the application dose was 1 L.ha-1 (T2).