Characterization and agronomical evaluation of three biofertilizers: Bokashi, Supermagro and Native Efficient Microorganisms

Abstract

The excessive use of agrochemicals deteriorates the ecosystems and the health of people. The biofertilizers (BP) are an alternative that allow the entry of organic matter, nutrients and microorganisms into the soil. In the present work three BP were characterized: bokashi, supermagro and native efficient microorganisms, and their effect on the microbial community of the soil and the yield of the lettuce were evaluated. It was observed that the microbial community composition of the different BP was variable. The soil abundance of microbial groups of interest was greater in the treatments that received bokashi and lower when chemical fertilizers were applied. The dry weights of the aerial part and the root of the lettuces were greater in the treatment with bokashi than in the control. It is concluded that the addition of bokashi increased the amount of beneficial microorganisms in the soil and had positive effects on the yield of the lettuce crop.