| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agrobiologia. |
|
Data corrente: |
22/03/2021 |
|
Data da última atualização: |
05/10/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PEREIRA, W.; OLIVEIRA, R. P.; PEREIRA, A.; SOUZA, J. S.; NIVALDO, S.; URQUIAGA, S.; REIS, V. M. |
|
Afiliação: |
WILLIAM PEREIRA, UFRRJ; UFRRJ; ALISSON PEREIRA, UFRRJ; JAILSON SILVA SOUSA, UFV; NIVALDO SCHULTZ, UFRRJ; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; VERONICA MASSENA REIS, CNPAB. |
|
Título: |
Nitrogen acquisition and 15N-fertiliser recovery efficiency of sugarcane cultivar RB92579 inoculated with five diazotrophs. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 119, p.37-50, 2021. |
|
ISSN: |
1385-1314 |
|
Idioma: |
Inglês |
|
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 |
|
Palavras-Chave: |
15N fertiliser; Diazotrophic bacteria. |
|
Thesaurus Nal: |
Isotopes; Sugarcane. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 2 | |
| 1. |  | MORAIS, L. K. de; GODOY, I. J. de; OLIVEIRA, E. J. de; MORAES, A. R. A. de; MARTINS, A. L. M.; BOLONHEZI, D.; FREITAS, R. S. de. O uso do genótipo suplementar na análise AMMI para estudo da estabilidade e adaptabilidade em genótipos de amendoim. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 4., 2007, São Lourenço. São Lourenço:[s.n.], 2007. Rogério Soares de Freitas, APTA| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
|    |
| 2. | | GODOY, I. J. de; CARVALHO, C. L. de; MARTINS, A. L. M.; BOLONHEZI, D.; FREITAS, R. S. de; KASAI, F. S.; TICELLI, M.; SANTOS, J. F. dos; OLIVEIRA, E. J. de; MORAIS, L. K. de. IAC 503 e IAC 505: cultivares de amendoim com característica "alto oleico". In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
| |
| Registros recuperados : 2 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
