The application of new management techniques with the objective of implementing in agriculture, such as the use of growth-promoting and/or plant-protecting microorganisms and micronutrients, appears as an alternative. Thus, the aim of the study was to evaluate the potential of Trichoderma atroviride in association with doses of B, analyzing the effects on nutritional contents, yield components and productivity. The study was carried out in the field, in a randomized block design in a 4 × 5 factorial scheme, whose treatments were combined, consisting of foliar application of T. atroviride in three phenological stages (V5, R1 and R5) and no application (SEM), and five doses of B (0, 500, 1000, 1500 and 2000 g ha -1 ). The data obtained were submitted to ANOVA and, when significant, the study of polynomial regression and Tukey's test was carried out, followed by Pearson's linear correlation analysis (p < 0.05). The use of the microorganism and doses of B did not result in a significant increase in the growth and productive yield of soybean (Glycine max (L.) Merr.), but the application of the micronutrient significantly increased the number of pods per plant and the foliar content of B. Positive correlations were observed between plant height and pod insertion height (r = 0.51***), pod with branches (r = 0.68***), grains with branches and pod (r = 0.69*** and 0.95*** respectively), as well as a negative correlation between 100grain mass and plant height (r = -0.24*), and a non-correlation for yield and leaf content of B.

The objective of this work was to verify the effect of humic acid application in association with the growth-promoting bacteria Azospirilum brasilense and Bacillus subtilis on seed germination and on the initial development of white sesame seedlings. The research was carried out in the Laboratory of Seed Technology and Matology (LaSeM), at the University of the State of Mato Grosso – Campus de Alta Floresta. The treatments were composed by the combination of doses of 0, 100, 200, 300, 400 and 500 mL 100 kg-1 of commercial product containing humic acid, composed of 18% of humic acid, in addition to treatment with the bacteria Azospirillum brasilense and Bacillus subtilis, in the same doses as humic acid. The variables analyzed were germination percentage, aerial and root length, fresh and dry mass of the roots. Humic acid showed promise in the cultivation of white sesame.

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