Evaluation of productivity through the application by foliar application of azospirillum brasilense in corn culture

Abstract

In view of the need to obtain alternative techniques to increase productivity of economically viable maize, the use of Azospirillum brasilense has shown to be a sustainable and promising alternative, so in the present study, the objective was to determine the best dose of Azospirillum brasilense bye foliar application, productivity and cost of production ratio. For this, treatments with different dosages of Azospirillum brasilense and complementary mineral fertilization were carried out, where the experimental design consisted of 5 blocks with 4 treatments. With the results, it was possible to observe that with the increase of doses, an increase in productivity in relation to the control also occurred, and it was possible to conclude that the optimum application rate was 114.75 mL ha-1. The cost-productivity ratio from the 107 ml ha -1 dose tended to stabilize, thus resulting in the conclusion that any dosage above this is within the same cost range. Thus, the optimal dosage of 114.75 mL is recommended to be used both for the increase of productivity as well as for the profitability of the rural producer. The use of the bacterium proved to be a technically feasible, sustainable technology capable of minimizing damages to the environment, besides providing cost reduction to the rural producer with chemical inputs.