Aplicação de molibdênio e cobalto na semente para cultivo da soja

Marcondes, José Alfredo Prestes; Caires, Eduardo Fávero

doi:10.1590/s0006-87052005000400019

Cited by 14 publications

(14 citation statements)

References 13 publications

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“…Sfredo and Oliveira (2010) pointed out that Mo absorption by soybean plants occurs predominantly as MoO 4 2− when soil pH is equal to or higher than 5.0. It was confirmed by Marcondes and Caires (2005), who observed no influence of Mo applied to seeds on nodulation, N content in leaves and grains, and productivity in a soil with a pH of 5.2. Therefore, this result is in accordance with these studies, which showed that an increased soybean productivity was observed when soils had a pH lower than 5.0, proving that Mo application via seed or leaf supply soybean plants when there is no availability of soil Mo, which did not occur in the present study.…”

Section: Resultsmentioning

confidence: 66%

Enrichment, quality, and productivity of soybean seeds with cobalt and molybdenum applications

et al. 2019

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Cobalt (Co) and molybdenum (Mo) are vital nutrients for biological fixation and nitrogen assimilation by soybean. This study aimed to evaluate the increase of Co and Mo contents in soybean seeds by leaf applications. The experiment was carried out in a seed production field in a 3 × 3 factorial scheme with three Co and Mo doses and three treatments (times). Each treatment consisted of two application times: R3+R5.1 (T1), R3+R5.4 (T2), and R5.1+R5.4 (T3). Doses were 0, 400, and 600 g.ha−1 of Mo and 0, 40, and 60 g.ha−1 of Co. No difference was observed for productivity, one thousand-seed weight, and germination. An interaction was observed between dose and application time in the Mo content. The application of 400 g ha−1 of Mo in T1 (R3+R5.1) provided a higher Mo content in the seeds (13.5 g.kg−1), which is 1350% higher when compared to the control. For Co, there was a difference only for doses, and the application of 40 or 60 g.ha−1 of Co increased seed nutrient content by 30%. Therefore, a higher enrichment of Co and Mo was observed in seeds with applications of 40 and 400 g.ha−1, respectively, applied in R3+R5.1.

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Section: Resultsmentioning

confidence: 66%

Enrichment, quality, and productivity of soybean seeds with cobalt and molybdenum applications

et al. 2019

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“…Pesquisa desenvolvida por Marcondes & Caíres (2005) concluíram que a aplicação de cobalto e molibdênio nas sementes de soja não influenciou no número de vagens por planta, nos teores de nitrogênio nos grãos, altura de planta, e na produtividade. O cobalto influenciou negativamente na altura de planta e na produtividade de grãos, em razão da fitotoxidez deste elemento.…”

Section: Resultsunclassified

Teor de proteína e de óleo nos grãos de soja em função do tratamento de sementes e aplicação de micronutrientes

Souza

Zanon²,

Pedroso

et al. 2009

Ciênc. agrotec.

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RESUMOConduziu-se este trabalho, com o objetivo de verificar o efeito do uso de inoculante, fungicida, e micronutrientes na produtividade e na composição química dos grãos de soja. Na safra de 2005/2006, foi realizado um estudo com diferentes tratamentos de sementes e aplicação foliar de micronutrientes. Avaliaram-se características agronômicas e a produtividade, assim como o teor de óleo, de proteína e de outros nutrientes das folhas e dos grãos de soja. Altura de planta foi influenciada significativamente pelos tratamentos aplicados, sendo que a menor média de altura de planta foi observada na testemunha, 89,75 cm. O diâmetro de caules, o número de vagens por planta e a massa de 100 sementes não foram influenciados pelos tratamentos. Nas condições que o experimento foi desenvolvido, em solos de boa fertilidade, os tratamentos adotados não influenciaram significativamente na produtividade e nos teores de proteína e de óleo dos grãos, assim como na composição química foliar e dos grãos de soja. Termos para indexação:Glycine max; composição das sementes; produtividade. ABSTRACTThe objective of this work was to verify the effect of the use of inoculant, fungicide, and micronutrients on yield, and on the chemical composition of soybean grains. In the 2005/2006 crop, a study with different seed treatments and leaf applications of micronutrients was done. Agronomic characteristics and yield were evaluated, as well as, oil, protein, and nutritional contents of soybean leaves and grains. Plant height was influenced significantly by the applied treatments, with the smallest average of plant height being observed in control ( 89.75 cm). Stem diameter, number of beans per plant, and bio mass of 100 seeds were not influenced by treatments. Under the conditions in which the experiments were carried out, in soil with good fertility, the adopted treatments did not significantly influence yield, nor protein and oil content of grains, nor chemical composition of soybean leaves and grains.

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“…Segundo Marcondes;Caires (2005), o tratamento das sementes de soja com Co reduz linearmente a altura de plantas, devido a fitotoxicidade do elemento para a cultura da soja.…”

Section: Teores Foliares De N Co E Mounclassified

Interação herbicida pós-emergente Lactofen e micronutrientes Co e Mo aplicados via foliar na cultura da soja

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Aplicação de molibdênio e cobalto na semente para cultivo da soja

Cited by 14 publications

References 13 publications

Enrichment, quality, and productivity of soybean seeds with cobalt and molybdenum applications

Enrichment, quality, and productivity of soybean seeds with cobalt and molybdenum applications

Teor de proteína e de óleo nos grãos de soja em função do tratamento de sementes e aplicação de micronutrientes

Interação herbicida pós-emergente Lactofen e micronutrientes Co e Mo aplicados via foliar na cultura da soja

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