USO DE BACTÉRIAS SOLUBILIZADORAS DE FOSFATS NA CULTURA DA SOJA

Abstract

The aim of this work was to evaluate the inoculation of seeds with phosphorus solubilizing bacteria in soybean crop. The work was carried out at the Córrego do Oriente Farm located in Nova Glória, GO. The experimental design used was a randomized blocks in a 2x5 factorial scheme, two soybean cultivars NS 6906 IPRO and NEO 710 IPRO and five doses of the inoculant Biomaphos in seed 0, 1, 2, 4 and 6 mL kg-1 of seed, with four repetitions. Data were subjected to analysis of variance and compared by Tukey test at 5% significance. The variables plant height and height of the first pod differed between cultivars, and did not differ between doses. For the variables total number of pods per plant (3,99 mL kg-1) and yield the dose 3,83 mL kg-1 presented better statistical results. A statistically significant result was verified for the dose 3,83 mL kg-1 that reached an average of 4765,24 kg ha-1, corresponding to 1151,16 kg ha-1 or 19,18 sc ha-1 more than dose 0 mL kg-1. Under the conditions studied, a dose of 3,83 mL kg-1 of the BiomaPhos product is indicated, aiming at a greater number of pods per plant and, consequently, greater productivity.