Inoculant Bacillus subtilis UFMT-Pant001 promote plant growth and increase of soybean production

Abstract

Many strains of Bacillus subtilis are plant growth-promoting rhizobacteria (PGPR) because they have the ability to colonize the rhizosphere and promote plant growth, are essential for nutrient recycling and have potential as biofertilizers to increase productivity. This study aimed to demonstrate the efficiency of a liquid formulation of Bacillus subtilis UFMT-Pant001 as an inoculant to promote plant growth and soybean yield. Three field experiments were conducted in the municipalities of Alta Floresta (Mato Grosso), Ilha Solteira (São Paulo) and Selvíria (Mato Grosso do Sul) during the 2017 and 2017/2018 harvests. The biomass and productivity of soybean cultivars inoculated with different doses of B. subtilis UFMT-Pant001 were evaluated. The inoculation of B. subtilis UFMT-Pant001 positively influenced soybean biomass and productivity under field conditions in Alta Floresta, Ilha Solteira and Selvíria. Among the different field experiments and doses tested, positive results were observed in the treatments with doses of 200 mL per 50 kg of seed. Thus, a dose of 200 to 300 mL of inoculant with Bacillus subtilis UFMT-Pant001 at a concentration of 1 x 109 CFU mL-1 is recommended.