EFEITO DO FÓSFORO E CEPAS DE BACILLUS SUBTILIS (CNPMS B2084) E BACILLUS MEGATERIUM (CNPMS B119) NA PRODUTIVIDADE E VIABILIDADE DE SOJA

Abstract

Soybean (Glycine max) is one of the most important crops for the Brazilian economy, being the largest producer and exporter in the world. Phosphorus is an essential nutrient that, added through phosphate fertilizers, contributes to increasing crop productivity. This study evaluated the effect of different doses of phosphorus associated with the solubilizer BiomaPhos® (Bacillus subtilis and Bacillus megaterium) on soybean production. The experiment was conducted in randomized blocks with eight treatments, including phosphorus doses (60, 120 and 180 kg ha-1 of P2O5), combined or not with BiomaPhos®, as well as a control. Variables such as first pod insertion height, stem diameter, plant population and grain yield were analyzed. The results showed that the treatment with 180 kg ha-1 of P2O5 obtained the highest absolute yield (4,262.01 kg ha-1), while the intermediate doses of phosphorus associated with BiomaPhos® stood out for their profitability. The dose of 60 kg ha-1 + BiomaPhos® showed the best economic performance. It can be concluded that BiomaPhos® can optimize the use of phosphate fertilizers, contributing to a more sustainable agricultural production by reducing dependence on chemical inputs.