BIOLOGICAL EVALUATION IN THE TREATMENT OF SEEDS IN SOYBEAN CROP (GLYCINE MAX)

Abstract

Soybeans have been commercially produced in Brazil for more than a century, making us the world's largest producer with 147.35 million tons of grain. The GDP of agribusiness has shown growth, with an increase of 4.48% in the fourth quarter of 2024. The crop is a highlight for various sectors and has attractive production alternatives. However, due to large-scale production, soybeans are affected by various phytopathogenic agents during their cycle, so sustainable and economically viable alternatives are increasingly being prioritized, such as the use of biological management. The aim of this study was therefore to assess the influence of using different biological microorganisms in seed treatment on soybean crops. The experiment was carried out in the city of Sarandi/RS, with an experimental design - DBC - for each treatment in a completely randomized manner by drawing lots, with four replications, using the cultivar LG 62612 IPRO, cycle 6.1. The treatments used were V; V + AT + TN; V + ACM; V+ AT +TN +ACM; V + T; the study evaluated the following variables: number of nodules per plant; height; DM; legumes; grain per plant; grain per legume; PMS; productivity. The data was submitted to analysis of variance (ANOVA) and the means were compared using the Tukey test (p< 0.05), using the Sisvar system. The results obtained in this study showed that for most of the variables analyzed, the best results were obtained with V associated with the other treatments with bacteria Bacillus subtilis + Bacillus amyloliquefaciens and the fungus Beauveria bassiana.