https://www.alice.cnptia.embrapa.br/alice/handle/item/340 Artigo em periódico indexado (CNPSO) Fri, 24 Apr 2026 05:47:58 GMT 2026-04-24T05:47:58Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1183785 Título: Soybean yield potencial in petric plinthosols: climate and economic interactions. Autoria: CAMPOS, L. J. M.; HEINEMANN, A. B.; MATTA, D. H.; COSTA, R. V. da; EVARISTO, A. B.; VIOTTO, G. S.; JUSTINO, L. F.; FELICIANO, J. D. C.; ALMEIDA, R. E. M. de Conteúdo: ABSTRACT: Soybean production in central Brazil predominantly occurs on ferralsols. However, increasing global demand has driven expansion into marginal areas with less suitable soils, particularly petric plinthosols. These soils present significant agronomic challenges, especially their heightened vulnerability to climatic variability. Nevertheless, some regions with petric plinthosols, such as parts of Tocantins state, have achieved surprisingly high soybean yields. Despite this production potential, research on soybean cultivation in petric plinthosols are still limited. Our study addresses this knowledge gap by evaluating how environmental conditions and management practices, particularly sowing dates, affect soybean yields in petric plinthosols compared to ferralsols. We also developed economic indicators to support sustainable production decisions. The results demonstrated that while high yields are achievable in petric plinthosols, these soils exhibit greater climate sensitivity than ferralsols. Environmental factor such as air humidity, mainly in the reproductive phase, is a limiting factor for higher yields. Notably, our economic analysis revealed that cost management impacts profitability more substantially than yield improvements, even under unfavourable conditions. This finding suggests that strategic farm management could make petric plinthosol cultivation economically viable despite their agronomic constraints. Thu, 01 Jan 2026 00:00:00 GMT https://www.alice.cnptia.embrapa.br/alice/handle/doc/1183785 2026-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1172066 Título: Molybdenum and nickel foliar application on soybean yield and oil and protein contents. Autoria: MOREIRA, A.; CARDOSO, B. M.; DAMETO, L. S.; DELFIM, J.; MORAES, L. A. C.; LAZARINI, E. Conteúdo: ABSTRACT - The objective of this work was to evaluate the effect of the foliar application of molybdenum (Mo) and nickel (Ni) on the grain yield, yield components, and oil and protein contents in the grains of soybean cultivated under two edaphoclimatic conditions in Brazil. The following soybean genotypes were evaluated at the beginning of the R1–R2 growth stage: 'Brasmax Desafio RR', in the municipality of Londrina, in the state of Paraná; and 'TMG 7063 IPRO' and 'Brasmax Desafio RR', in the municipality of Selvíria, in the state of Mato Grosso do Sul. The treatments consisted in the application of four Mo rates (0, 400, 800, and 1,600 g ha-¹) and three Ni rates (0, 60, and 120 g ha-¹). The soybean genotypes exhibited varying responses to the two edaphoclimatic conditions. The foliar application of Mo is an effective strategy to increase the grain yield and protein content of 'TMG 7063 IPRO' e 'Brasmax Desafio RR'. However, with the application of 120 g ha-¹ Ni, both genotypes show the worst performance for yield components and oil and protein contents. The 'Brasmax Desafio RR' genotype presents varied responses across different soil and climate conditions. RESUMO - O objetivo deste trabalho foi avaliar o efeito da aplicação foliar de molibdênio (Mo) e níquel (Ni) sobre o rendimento de grãos, os componentes de produção e os teores de óleo e proteína nos grãos de soja cultivada sob duas condições edafoclimáticas no Brasil. Os seguintes genótipos de soja foram avaliados no início do estádio de crescimento reprodutivo R1–R2: 'Brasmax Desafio RR', no município de Londrina, no estado do Paraná; e 'TMG 7063 IPRO' e 'Brasmax Desafio RR', no município de Selvíria, no estado de Mato Grosso do Sul. Os tratamentos consistiram na aplicação de quatro doses de Mo (0, 400, 800 e 1.600 g ha-¹) e três doses de Ni (0, 60 e 120 g ha-¹). Os genótipos de soja apresentaram respostas distintas às duas condições edafoclimáticas. A aplicação foliar de Mo é uma estratégia eficaz para aumentar o rendimento de grãos e o teor de proteína em 'TMG 7063 IPRO' e 'Brasmax Desafio RR'. No entanto, com a aplicação de 120 g ha-¹ de Ni, ambos os genótipos apresentam o pior desempenho quanto aos componentes de rendimento e aos teores de óleo e proteína. O genótipo 'Brasmax Desafio RR' apresenta respostas variadas em diferentes condições de solo e clima. Mon, 01 Jan 2024 00:00:00 GMT https://www.alice.cnptia.embrapa.br/alice/handle/doc/1172066 2024-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1172084 Título: External microstructure of eggs from major owlet moth pests (Lepidoptera: Noctuoidea) associated with Brazilian soybean crops. Autoria: SÓSA-GOMEZ, D. R.; SPECHT, A.; MURÚA, M. G.; ANDRADE, C. G. T. de J. Mon, 01 Jan 2024 00:00:00 GMT https://www.alice.cnptia.embrapa.br/alice/handle/doc/1172084 2024-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1168393 Título: Comparação entre índices de vegetação obtidos por VANT na avaliação de plantas de soja infectadas por ferrugem-asiática Autoria: SILVA, B. M. da; CRUSIOL, L. G. T.; SIBALDELLI, R. N. R.; GODOY, C. V.; FLAUSINO, A. M.; SILVA, M. A. de A. e; FARIAS, J. R. B. Mon, 01 Jan 2024 00:00:00 GMT https://www.alice.cnptia.embrapa.br/alice/handle/doc/1168393 2024-01-01T00:00:00Z