Rhizobacteria and bokashi-type biofertilizer interaction in common bean crop1

ABSTRACT Common bean has the potential to interact with nitrogen-fixing bacteria, especially of the Rhizobium genus. This study aimed to evaluate the effect of the interaction between two rhizobia endogenous isolates with bokashi-type biofertilizer, in order to promote biological nitrogen fixation in common bean crop. The experiment was conducted in a greenhouse, using a completely randomized design with the factors fertilization (mineral and organic) and inoculation (RBZ14 and RBZ15 isolates and CIAT899 strain). The microbial composition of the biofertilizer was also determined by sequencing. The RBZ14 isolate increased the fresh and dry root mass accumulation, when compared to the CIAT899 strain, as well as yield, if compared to the control and CIAT899 inoculation, when combined with the bokashi-type biofertilizer, indicating its capacity to stimulate the common bean growth and suggesting its potential use as an inoculant, especially when associated with the biofertilizer.