PRODUÇÃO DE SILAGEM, COMPOSIÇÃO BROMATOLÓGICA E VIABILIDADE ECONÔMICA DE MILHOS VARIEDADE INOCULADOS COM Azospirillum brasilense

Abstract

In the West Goiano region there is a predominance of family farmers. These have livestock as one of the main income generating activities, periodically growing corn for silage production. Considering the high cost of hybrid seeds and nitrogen fertilization, technologies that contribute to the reduction of production costs are required. In this sense, the objective was to evaluate the response of maize genetic materials (Feroz Hybrid VIP3 and varieties SCS 156 and SCS 154), regarding silage production, bromatological composition and economic viability when inoculated with Azospirillum brasilense. The experiment was carried out in strips using a completely randomized design with four replications. Genetic materials responded differently to inoculation. For the Feroz hybrid and SCS 156 variety, the use of Azospirillum provided increases of 13,1% and 42,1% in fresh shoot production and 11,2 and 30,3% in silage nitrogen content, influencing the nutritional composition of the bulky food produced. For the SCS 154 variety, there was no response to inoculation. As for the economic viability, the use of inoculated SCS 156 variety presenting better rate of profitability and profitability, proving to be more economically attractive and viable for farmers.