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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
22/03/2021 |
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Data da última atualização: |
05/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, W.; OLIVEIRA, R. P.; PEREIRA, A.; SOUZA, J. S.; NIVALDO, S.; URQUIAGA, S.; REIS, V. M. |
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Afiliação: |
WILLIAM PEREIRA, UFRRJ; UFRRJ; ALISSON PEREIRA, UFRRJ; JAILSON SILVA SOUSA, UFV; NIVALDO SCHULTZ, UFRRJ; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; VERONICA MASSENA REIS, CNPAB. |
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Título: |
Nitrogen acquisition and 15N-fertiliser recovery efficiency of sugarcane cultivar RB92579 inoculated with five diazotrophs. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 119, p.37-50, 2021. |
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ISSN: |
1385-1314 |
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Idioma: |
Inglês |
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Conteúdo: |
We aimed to evaluate N acquisition and 15N-fertiliser recovery efficiency of sugarcane as a function of N fertilisation and inoculation with plant growth-promoting diazotrophic bacteria (PGPDB) during the first crop season. A field experiment was performed with a randomized complete block design consisting of four replications and four treatments: control without N and without inoculation; control without N but with inoculation of a mixture of five strains of diazotrophic bacteria; N treatment (50 kg ha−1 N-urea) without inoculation; and N treatment with inoculation. Over seven harvests, we evaluated crop growth, biomass accumulation, N content, and N recovery using 15N-urea (excess of 1.5% atoms 15N). In addition, the contribution of biological N fixation (BNF) was measured using the 15N natural abundance technique in the plots without N fertiliser application. Inoculation with the mixture of five PGPDB strains increased the yield by 15% and N content in the shoots by 18% over the cycle. The average contribution of N fertiliser in plant N nutrition was 13%; other sources accounted for a large part of N in the shoots. Plants received N via BNF in 31% (average) of the treatments during the plant cycle; however, inoculation did not interfere with this process. The recovery efficiency of 15N-fertiliser was 50% in this first cycle with no differences among inoculation treatments. Nitrogen fertiliser applied to sugarcane resulted in a low impact on N accumulation, and a single application of an inoculant improved plant growth by mechanisms other than BNF. MenosWe aimed to evaluate N acquisition and 15N-fertiliser recovery efficiency of sugarcane as a function of N fertilisation and inoculation with plant growth-promoting diazotrophic bacteria (PGPDB) during the first crop season. A field experiment was performed with a randomized complete block design consisting of four replications and four treatments: control without N and without inoculation; control without N but with inoculation of a mixture of five strains of diazotrophic bacteria; N treatment (50 kg ha−1 N-urea) without inoculation; and N treatment with inoculation. Over seven harvests, we evaluated crop growth, biomass accumulation, N content, and N recovery using 15N-urea (excess of 1.5% atoms 15N). In addition, the contribution of biological N fixation (BNF) was measured using the 15N natural abundance technique in the plots without N fertiliser application. Inoculation with the mixture of five PGPDB strains increased the yield by 15% and N content in the shoots by 18% over the cycle. The average contribution of N fertiliser in plant N nutrition was 13%; other sources accounted for a large part of N in the shoots. Plants received N via BNF in 31% (average) of the treatments during the plant cycle; however, inoculation did not interfere with this process. The recovery efficiency of 15N-fertiliser was 50% in this first cycle with no differences among inoculation treatments. Nitrogen fertiliser applied to sugarcane resulted in a low impact on N accumulation, and a sin... Mostrar Tudo |
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Palavras-Chave: |
15N fertiliser; Diazotrophic bacteria. |
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Thesaurus Nal: |
Isotopes; Sugarcane. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02328naa a2200253 a 4500
001 2130846
005 2021-10-05
008 2021 bl uuuu u00u1 u #d
022 $a1385-1314
100 1 $aPEREIRA, W.
245 $aNitrogen acquisition and 15N-fertiliser recovery efficiency of sugarcane cultivar RB92579 inoculated with five diazotrophs.$h[electronic resource]
260 $c2021
520 $aWe aimed to evaluate N acquisition and 15N-fertiliser recovery efficiency of sugarcane as a function of N fertilisation and inoculation with plant growth-promoting diazotrophic bacteria (PGPDB) during the first crop season. A field experiment was performed with a randomized complete block design consisting of four replications and four treatments: control without N and without inoculation; control without N but with inoculation of a mixture of five strains of diazotrophic bacteria; N treatment (50 kg ha−1 N-urea) without inoculation; and N treatment with inoculation. Over seven harvests, we evaluated crop growth, biomass accumulation, N content, and N recovery using 15N-urea (excess of 1.5% atoms 15N). In addition, the contribution of biological N fixation (BNF) was measured using the 15N natural abundance technique in the plots without N fertiliser application. Inoculation with the mixture of five PGPDB strains increased the yield by 15% and N content in the shoots by 18% over the cycle. The average contribution of N fertiliser in plant N nutrition was 13%; other sources accounted for a large part of N in the shoots. Plants received N via BNF in 31% (average) of the treatments during the plant cycle; however, inoculation did not interfere with this process. The recovery efficiency of 15N-fertiliser was 50% in this first cycle with no differences among inoculation treatments. Nitrogen fertiliser applied to sugarcane resulted in a low impact on N accumulation, and a single application of an inoculant improved plant growth by mechanisms other than BNF.
650 $aIsotopes
650 $aSugarcane
653 $a15N fertiliser
653 $aDiazotrophic bacteria
700 1 $aOLIVEIRA, R. P.
700 1 $aPEREIRA, A.
700 1 $aSOUZA, J. S.
700 1 $aNIVALDO, S.
700 1 $aURQUIAGA, S.
700 1 $aREIS, V. M.
773 $tNutrient Cycling in Agroecosystems$gv. 119, p.37-50, 2021.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 2 | |
| 1. |  | COSTA, J. G. C. da; MELO, L. C.; PEREIRA, H. S.; DEL PELOSO, M. J.; FARIA, L. C. de; CABRERA DIAZ, J. L.; WENDLAND, A.; RAVA, C. A.; CARVALHO, H. W. L. de; COSTA, A. F. da; ALMEIDA, V. M. de; MELO, C. L. P. de; VIEIRA JÚNIOR, J. R.; FARIA, J. C. de; SOUZA, J. F.; MARANGON, M. A.; CARGNIN, A.; ABREU, Â. de F. B.; MOREIRA, J. A. A.; PEREIRA FILHO, I. A.; GUIMARÃES, C. M.; BASSINELLO, P. Z.; BRONDANI, R. P. V.; MAGALDI, M. C. de S. BRS Esplendor: cultivar de feijoeiro comum de grão tipo comercial preto, com arquitetura de planta ereta, alto potencial produtivo e tolerância a doenças. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2009. 4 p. (Embrapa Arroz e Feijão. Comunicado técnico, 185).| Tipo: Comunicado Técnico/Recomendações Técnicas |
| Biblioteca(s): Embrapa Agropecuária Oeste; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Milho e Sorgo; Embrapa Rondônia; Embrapa Tabuleiros Costeiros. |
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| 2. | | MELO, L. C.; DEL PELOSO, M. J.; PEREIRA, H. S.; FARIA, L. C. de; COSTA, J. G. C. da; CABRERA DIAZ, J. L.; RAVA, C. A.; WENDLAND, A.; CARVALHO, H. W. L. de; COSTA, A. F. da; ALMEIDA, V. M. de; MELO, C. L. P. de; VIEIRA JÚNIOR, J. R.; FARIA, J. C. de; SOUZA, J. F.; MARANGON, M. A.; CARGNIN, A.; ABREU, Â. de F. B.; MOREIRA, J. A. A.; PEREIRA FILHO, I. A.; GUIMARÃES, C. M.; BASSINELLO, P. Z.; BRONDANI, R. P. V.; MAGALDI, M. C. de S. BRS Estilo: cultivar de grão tipo comercial carioca, com arquitetura de planta ereta associada com alto potencial produtivo. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2009. 4 p. (Embrapa Arroz e Feijão. Comunicado técnico, 186).| Tipo: Comunicado Técnico/Recomendações Técnicas |
| Biblioteca(s): Embrapa Agropecuária Oeste; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Milho e Sorgo; Embrapa Rondônia. |
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| Registros recuperados : 2 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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