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| Oliveira,Dâmiany Pádua; Soares,Bruno Lima; Martins,Fábio Aurélio Dias; Franceschini,Leandro Alex; Cardillo,Bruno Ewerton da Silveira; Rufini,Márcia; Morais,Augusto Ramalho de; Moreira,Fatima Maria de Souza; Andrade,Messias José Bastos de. |
| Abstract: The objective of this work was to evaluate the viability of liquid medium inoculation of Rhizobium etli in the planting furrow and to certify the efficiency of its strain UFLA 02-100 as a potential inoculant for common bean (Phaseolus vulgaris). The treatments consisted of three application rates of liquid inoculant applied in the planting furrows or in common bean seed, besides two controls without inoculation. The inoculant contained 109 cells of Rhizobium etli mL-1. Regardless of the application method, the yield obtained with the inoculation was equivalent to that of N from urea; however, the application in the furrows, at 0.6 L ha-1, is more advantageous due to the operational practicality and reduced costs. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Biological N2 fixation; Biotechnology. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300394 |
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| Neves,Orlando Sílvio Caires; Carvalho,Janice Guedes de; Martins,Fábio Aurélio Dias; Pádua,Tullio Raphael Pereira de; Pinho,Paulo Jorge de. |
| A aplicação do medidor indireto de clorofila SPAD-502 tem sido estudada para diversas culturas e com resultados satisfatórios, para predição do estado nutricional de nitrogênio. O objetivo deste trabalho foi avaliar o emprego do SPAD-502 na avaliação dos teores foliares de clorofila, N, S, Fe e Mn, em algodão herbáceo, cultivado em casa de vegetação. Foram instalados quatro experimentos, e foram estudadas doses de N (1,5, 7,5, 15 e 22,5 mM L-1), S (0,2, 1, 2 e 3 mM L-1), Fe (10, 50, 100 e 150 µmol L-1) e Mn (10, 50, 100 e 150 µmol L-1), equivalentes em todos os casos a 0,1, 0,5, 1,0 e 1,5 vez a concentração normal da solução Hoagland & Arnon, respectivamente. A clorofila a se relaciona mais fortemente com as leituras SPAD do que as clorofilas b. As... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clorofilômetro; Medida indireta de clorofila; Solução nutritiva. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000500014 |
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| Soares,Bruno Lima; Ferreira,Paulo Ademar Avelar; Rufini,Márcia; Martins,Fábio Aurélio Dias; Oliveira,Dâmiany Pádua; Reis,Ricardo Pereira; Andrade,Messias José Bastos de; Moreira,Fatima Maria de Souza. |
| ABSTRACT Management of biological nitrogen fixation in common bean still requires improvement. The objective of this study was to verify the compatibility of nitrogen fertilization with biological N2 fixation to increase common bean yield and profitability. Four field experiments were performed in four municipalities of Minas Gerais, Brazil, during the 2009 and 2010 winter crop season. The 2009 crop experiments were set up under a no-till system and the 2010 crop was conducted using conventional tillage. A randomized block experimental design was used with four replications and seven treatments combining application rates of mineral N (at sowing and/or topdressing) and seed inoculation with Rhizobium tropici strain CIAT899. Inoculation with 20 kg ha-1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Nitrogen fixation; No-till; Conventional tillage. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100416 |
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