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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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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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| Acesso ao texto completo restrito à biblioteca da Embrapa Territorial. Para informações adicionais entre em contato com cnpm.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
22/05/2015 |
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Data da última atualização: |
24/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
BATISTELLA, M. |
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Afiliação: |
MATEUS BATISTELLA, CNPM. |
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Título: |
Eucalipto não é floresta? |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Opiniões, v. 12, n. 39, mar./maio 2015. |
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Páginas: |
p. 26-28 |
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Idioma: |
Português |
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Conteúdo: |
o que se observa na região do Vale do Paraíba paulista, onde os plantios florestais de eucalipto desenvolveram majoritariamente para a produção de celulose foi o maior aumento de vegetação nativa e suas áreas de influência. |
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Palavras-Chave: |
Geoinformação; Geotecnologia. |
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Thesagro: |
Silvicultura. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 00662naa a2200169 a 4500
001 2016028
005 2017-05-24
008 2015 bl uuuu u00u1 u #d
100 1 $aBATISTELLA, M.
245 $aEucalipto não é floresta?$h[electronic resource]
260 $c2015
300 $ap. 26-28
520 $ao que se observa na região do Vale do Paraíba paulista, onde os plantios florestais de eucalipto desenvolveram majoritariamente para a produção de celulose foi o maior aumento de vegetação nativa e suas áreas de influência.
650 $aSilvicultura
653 $aGeoinformação
653 $aGeotecnologia
773 $tOpiniões$gv. 12, n. 39, mar./maio 2015.
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