ASSOCIAÇÃO DE REMINERALIZADOR COM BACTÉRIAS EFICIENTES NA GERMINAÇÃO E CRESCIMENTO INICIAL DA SOJA

Abstract

The use of efficient microorganisms associated with soil remineralizers has emerged as a promising strategy to promote early crop development. This study evaluated the effects of a mica schist–based remineralizer, applied alone or in combination with Bacillus subtilis and Bacillus aryabhattai, on the germination and early growth of the conventional soybean cultivar MÍTICA CE. Two greenhouse experiments were conducted at IF Goiano – Campus Cristalina, with the remineralizer applied 45 days before sowing (ADP) and on the day of sowing (NDP). The experimental design was completely randomized, with seven treatments and four replications. Germination, plant height, stem diameter, number of leaves, shoot dry mass, and root length were evaluated. In the ADP experiment, significant differences were observed among treatments, with B. aryabhattai and B. subtilis promoting higher germination, shoot biomass, and better vegetative development. In the NDP experiment, although no statistical differences were detected for most variables, the microbial associations showed a consistent trend toward improved plant performance. The remineralizer, regardless of application timing, did not impair germination or root development. The results indicate that the interaction between efficient microorganisms and remineralizers positively contributes to early soybean growth and has potential for adoption in sustainable production systems.