https://repositorio.ufms.br/handle/123456789/3937 Wed, 15 Apr 2026 03:53:42 GMT 2026-04-15T03:53:42Z https://repositorio.ufms.br/handle/123456789/14275 Título: Fertilizantes organominerais como alternativa a adubação convencional na soja Abstract: In soybean fertilization management, traditionally only mineral fertilizers are used. However, this has been changing with the inclusion of pure organic fertilizers or mixtures with minerals. By combining mineral fertilization with organic matter, it is possible to increase crop growth and productivity in the long term. Mineral fertilizers, although showing positive results in plant production, have a high cost, and for this reason, there is an interest in studying different sources of inputs, aiming at a more efficient and sustainable management of agricultural production, and in this context, organomineral fertilizers show promise. Thus, the objective of this work was to evaluate the efficiency of organomineral fertilizers replacing conventional soybean fertilization. The experiment was installed in the field, in the 2023/2024 growing season, in the experimental area of Chapadão do Sul, MS. The experimental design used was a randomized block design with ten treatments and four replications. The treatments consisted of the use of pure mineral fertilizer or its mixture with organic compounds, in different proportions: control; mineral 50% (M50); 70% (M70) and 100% (M100); supergan 50% (S50); 70% (S70) and 100% (S100); supergan plus 50% (SP50), 70% (SP70) and 100% (SP100). For the mineral fertilizer, the 11-52-00 formulation was used, at doses of 45, 63 and 90 kg ha-1 of P2O5, respectively for 50, 70 and 100% of the doses. For the organomineral fertilizer, the 06-22-01 formulation was used, which provides the same 45, 63, and 90 kg ha-1 of P2O5, respectively for 50, 70, and 100% of the doses. The organomineral fertilizers (Supergan and Supergan Plus) are formulated with mineral fertilizer enriched with manure based on chicken litter and 10 additional bacteria. The total plant height, leaf chlorophyll content, grain weight per plant, thousand-grain weight, and grain yield were evaluated. For plant height, all treatments, except M50 and S50, exceeded the control, promoting average gains of 16% for this variable. The highest chlorophyll value was obtained with the SP70 treatment, promoting gains of 26.5% and 14.5% when compared to the control and the use of mineral fertilizers, respectively. The grain weight per plant obtained with the organic fertilization S70 and SP70 was 16.3% higher than the fertilization of plants with mineral fertilizers, while the thousand-grain weight obtained in the organomineral treatment SP70 exceeded by 9.8% the result achieved with mineral fertilization. The use of organomineral fertilizer increased soybean grain yield in all treatments, except S50 and S100, when compared to mineral fertilization alone. The highest values were obtained with the SP70 treatment, which surpassed the control by 45.1% and mineral fertilizers by 17.3%, resulting in an increase of 12.9 sacks per hectare. It was concluded that the use of organomineral fertilizers promotes an increase in chlorophyll content, components of soybean production and grain productivity, compared to the use of mineral fertilizers alone. Tipo: Trabalho de Conclusão de Curso Wed, 01 Jan 2025 00:00:00 GMT https://repositorio.ufms.br/handle/123456789/14275 2025-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/14207 Título: ESTOQUE DE CARBONO NO SOLO EM SISTEMA DE CONSÓRCIO DE MILHO EM SUCESSÃO A CANA-DE-AÇÚCAR SUBMETIDOS A DISTINTAS DOSES DE AZOSPIRILLUM BRASILENSE E FONTES DE NITROGENIO Abstract: Assessing carbon stocks at different depths is particularly important, since deeper layers tend to store more stable and persistent forms of carbon. Despite these advances, research analyzing the interaction between nitrogen sources and doses of microbial inoculant on carbon stocks in different soil layers is still scarce, especially in integrated systems such as corn and sugarcane. Thus, this study aimed to evaluate the effect of applying doses of Azospirillum brasilense associated with nitrogen sources (nitrate and urea) on organic carbon stocks at three depths in soil cultivated with corn intercropped with sugarcane. The experiment was conducted in Chapadão do Céu – GO. The experimental design was a randomized complete block design in a factorial scheme, with four replications. The treatments consisted of doses of Azospirillum brasilense (A1 = 0, A2 = 100, A3 = 200, A4 = 300 mL ha⁻¹; strains AbV5 and AbV6; 2 × 10⁸ CFU mL⁻¹) applied during seed inoculation, and two N sources (ammonium nitrate and urea). The plots were composed of nine rows of corn (10 m long), with the three central rows considered the useful area. sixty days after germination, soil samples were collected at three depths: 0–10 cm (C1), 10–20 cm (C2), and 20–40 cm (C3). The results indicate that the use of nitrate as a nitrogen source associated with higher doses of inoculant favors the accumulation of carbon in the soil, especially in subsurface layers. urea, on the other hand, showed the opposite behavior, with a reduction in stocks as inoculant doses increased, possibly due to losses from volatilization and lower efficiency in utilization. These findings reinforce the importance of choosing the appropriate nitrogen source and inoculant dose to maximize biological fixation, root growth, and consequently, carbon input to the soil. Tipo: Trabalho de Conclusão de Curso Wed, 01 Jan 2025 00:00:00 GMT https://repositorio.ufms.br/handle/123456789/14207 2025-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/14080 Título: Aplicação fracionada de nitrogênio sobre o desempenho produtivo e fisiológico do sorghum bicolor l. Abstract: This study aimed to evaluate the effect of nitrogen fractionation on foliar N content, photosynthetic pigments, and grain yield in grain sorghum (Sorghum bicolor L.). The experiment was conducted at the Federal University of Mato Grosso do Sul campus in Chapadão do Sul (MS), during the second growing season of 2024, in a dystrophic Red Latosol with clayey texture. The experimental design was a randomized complete block design (RCBD) with six treatments: control (T1), a single fertilization at planting (T2), fertilization at planting + 1 topdressing (T3), fertilization at planting + 2 topdressings (T4), 1 topdressing (T5), 2 topdressings (T6), and four replications, totaling 24 plots. The nitrogen dose (urea) was applied in full at planting or fractionated into one and two topdressings. The variables analyzed included grain yield, leaf nitrogen content, total chlorophyll, and carotenoids. Analysis of variance, followed by Tukey's test at 5%, indicated significant differences between treatments, highlighting the higher yields in the split-dose fertilization management. Canonical discriminant and principal component (PCA) multivariate analyses showed a strong association between yield, leaf nitrogen, and total chlorophyll in the treatments with multiple topdressings, while the control showed greater carotenoid accumulation, indicating a photoprotective response. The heat map confirmed these patterns, showing a positive correlation between leaf nitrogen and yield and an inverse relationship with carotenoids. Splitting nitrogen fertilization increased nutrient use efficiency and favored the physiological balance of plants, resulting in higher grain sorghum yield performance under Cerrado conditions. Tipo: Trabalho de Conclusão de Curso Wed, 01 Jan 2025 00:00:00 GMT https://repositorio.ufms.br/handle/123456789/14080 2025-01-01T00:00:00Z https://repositorio.ufms.br/handle/123456789/13934 Título: APLICAÇÃO FOLIAR DE SILÍCIO E COBRE SOBRE DESEMPENHO FISIOLÓGICO E PRODUTIVO DA SOJA Abstract: The search for nutritional strategies that improve the physiological and productive performance of soybean has gained prominence due to the need to maximize the metabolic efficiency of the crop. This study aimed to evaluate the effects of isolated and combined foliar application of silicon (Si) and copper (Cu) on the physiological and productive performance of soybean (Glycine max L.). The experiment was conducted in the experimental area of the Federal University of Mato Grosso do Sul (UFMS), Chapadão do Sul Campus, during the 2024/2025 growing season. The experimental design used was a Randomized Complete Block Design (RCBD), with six treatments and four replications, including different combinations of silicon and copper doses: T1 (absolute control), T2 (Si 0.60 g L-1 and Cu 0.0 g ha-1), T3 (Si 0.0 g L-1 and Cu 164 g ha 1), T4 (Si 0.60 g L-1 and Cu 164 g ha-1), T5 (Si 0.0 g L-1 and Cu 328 g ha-1) and T6 (Si 0.60 g L-1 and Cu 328 g ha-1), with potassium silicate and copper chelate as sources. Foliar applications were carried out at three reproductive stages of soybean: R3, R5.1 and R6. Foliar copper, silicon, and proline levels were evaluated, as well as grain yield and canonical discriminant analysis of nutritional and productive variables. Normality and homogeneity tests were applied, followed by ANOVA with Scott-Knott (5%). Canonical discriminant analysis assessed the combined behavior of the variables. The results indicated that the combined application of Cu and Si (Si 0.60 g L-1 and Cu 164 g ha-1) provided better physiological balance and higher productivity, demonstrating a synergistic effect between the elements. The treatment with the highest dose of copper (328 g ha-1) increased foliar levels of the nutrient, but without significant productive gains, while isolated silicon contributed to the metabolic stability of the plants. Thus, the association between Cu and Si proved to be a promising strategy for the nutritional management of soybeans, enhancing the physiological and productive performance of the crop. Keywords: micronutrient, beneficial element, foliar fertilization, proline, (Glycine max L.). Tipo: Trabalho de Conclusão de Curso Wed, 01 Jan 2025 00:00:00 GMT https://repositorio.ufms.br/handle/123456789/13934 2025-01-01T00:00:00Z