| Popis: |
The use of microorganisms as a plant growth promoter such as Bacillus subtilis is an alternative that may provide benefits to soybean cultivation, improved development, and productivity. The objective of this work was to evaluate the biomass and productivity of soybean inoculated by Bacillus subtilis Bs10 cultivated in field, in Gurupi, Tocantins, in the 2015/2016 and 2016/2017 seasons. Four treatments inoculated with liquid formulation based on Bacillus subtilis Bs10 were carried out in different doses (100, 200, 300 and 400 ml for 50 kg of seeds) and compared to a commercial product based on B. subtilis (positive control) and a non-inoculated treatment (absolute control). Inoculation by B. subtilis Bs10 positively influenced biomass, stand maintenance and yield of soybean under field conditions in both harvests. These yields were 26.6% (200 mL) and 31.8% (300 mL) higher than the absolute control treatment for a 2015/2016 seasons and between 10.8 and 15.43% for a 2016/2017 seasons. Thus, there were significant results from the dose tested 200 mL of inoculant per 50 kg of seed. The strain of B. subtilis Bs10 can be recommended as plant growth promoting inoculant in soybean. |
