Modos e doses de aplicação de inoculante na soja, em Sinop-MT

Abstract

Inoculation is considered one of the most important practices in soybean cultivation. The objective of the study was to verify the effect of different levels (control 0mL kg-1, four times the recommended 8mL kg-1, 8 times the recommended 16mL kg-1 and 12 times the recommended 24mL kg-1), and modes direct application to seed, foliar application and applied directly to the soil) of inoculant application (Bradyrhizobium japonicum), in cultivar LG 60174 IPRO. The experimental design was a complete randomized complete block (DBC) with 4 replicates, 16 treatments, 64 plots with 2 pots for each plot and 128 pots in total. The variables analyzed were plant height, stem diameter, number of leaves, leaf area, shoot dry mass, root dry mass, number of nodules and dry mass of nodules. The treatments with bovine gelatine were the ones that obtained the best results in plant height, stem diameter, number of leaves, leaf area, chlorophyll content, and shoot dry mass. Presenting the highest averages in the vegetative growth of the plants. Regarding nodulation of plants, seed inoculation was the one that obtained the highest averages in the number of nodules and in the dry mass of nodules.