Nutritional management in soybean crop for high yields using organomineral fertilizers

Abstract

The objective of this work was to evaluate the performance of soybean cultivars as a function of the application of organomineral fertilizer via foliar, to obtain high yields. The study was conducted at the municipality of Mineiros-GO, Brazil. The soil is classified as neosol quartzeneic ortic typical, with medium texture. The experimental design was a 5x3 factorial, totaling 15 treatments, corresponding to five doses of Potamol Plus® (0, 0.25, 0.5, 0.75 and 1 L ha-1) and 3 cultivars of (M7739, M8372 and TMG7062) in 4 replications. The data obtained was submitted to the assumptions of the statistical model, verifying the normality and homogeneity of the residual variances, as well as the additivity of the model, for these were performed single and multivariate analyzes. The analysis of variance showed that the cultivar factor was significant for all variables. Significance was also observed in the dose factor for APR, LUG, LQG, REN, LDG, GTP and GCP. Interaction between factors (C x D) occurred in APR, LUG, LDG, LQG, LTG, GTP and GCP. Potamol Plus® organomineral fertilizer applied foliar at 30 (50%) and 45 (50%) days after sowing did not increase the productive performance of soybean cultivars M7739, M8372 and TMG7062. The cultivars M7739 and TMG7062 presented high yields (yield ≥ 70 bag ha-1).

Research Article Nitrogen supplementation improves yield and quality of soybean seeds

“…Bagateli et al (2022) reported that the application of N to wheat did not change the physiological quality of the seeds, but it promoted an 11% increase in grain yield. Ferreira et al (2022) observed that the application of foliar nitrogen fertilizers did not influence the yield performance of soybean. For the number of nodes per plant, the different management of N resulted in a positive effect with an increase in the number of nodes compared to the treatment without N in coverage, except for the total application of N in R2 (120R2/0R5), which showed no difference.…”

“…Several studies have evaluated the effects of nitrogen fertilization, both base and in coverage, and of biological nitrogen fixation (BNF) in the soybean culture (Hardarson et al, 1984;Barbosa et al, 2021;Chiluwal et al, 2021;Ferreira et al, 2022). For some researchers, the nitrogen demand is completely met by BNF, and no significant yield gains are observed with the use of nitrogen fertilizers, which, in some situations, are even negative to the BNF process and negatively affect grain yield, in addition to burdening production costs (Barbosa et al, 2021).…”