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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
08/09/2017 |
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Data da última atualização: |
10/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SATURNO, D. F.; CEREZINI, P.; SILVA FILHO, P. M. da; OLIVEIRA, A. B. de; OLIVEIRA, M. C. N. de; HUNGRIA, M.; NOGUEIRA, M. A. |
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Afiliação: |
DIOGO FERNANDO SATURNO, UEL; PAULA CEREZIN, UEL; PEDRO MOREIRA DA SILVA FILHO, CNPSO; ARNOLD BARBOSA DE OLIVEIRA, CNPSO; MARIA CRISTINA NEVES DE OLIVEIRA, CNPSO; MARIANGELA HUNGRIA DA CUNHA, CNPSO; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Mineral nitrogen impairs the biological nitrogen fixation in soybean of determinate and indeterminate growth types. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 40, n. 12, p. 1690-1701, 2017. |
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ISSN: |
1532-4087 |
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DOI: |
http://dx.doi.org/10.1080/01904167.2017.1310890 |
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Idioma: |
Inglês |
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Conteúdo: |
Soybean (Glycine max Merrill) crop production in Brazil relies mainly on biological nitrogen fixation (BNF) for nitrogen (N) supply. Recent adoption of indeterminate growth-type genotypes has raised doubts on the need for supplemental mineral N that might negatively affect the BNF. We assessed the effects of mineral N on BNF attributes of soybean genotypes grown in central and southern Brazil. Genotypes were inoculated with Bradyrhizobium sp. and/or received mineral N in three sets of experiments. In the first set, two genotypes received increasing rates of mineral N in nutrient solution, which consistently reduced the BNF. In the second set, mineral N applied at sowing and/or topdressing reduced nodulation and ureides-N in determinate and indeterminate growth-type genotypes. In the third set, mineral N applied at R5.3 stage, foliar or as topdressing, did not increase grain yield in four field experiments. Mineral N impaired BNF irrespective of the growth type and had on effect on grain yield. |
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Palavras-Chave: |
Fixação biológica de nitrogênio. |
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Categoria do assunto: |
-- |
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Marc: |
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022 $a1532-4087
024 7 $ahttp://dx.doi.org/10.1080/01904167.2017.1310890$2DOI
100 1 $aSATURNO, D. F.
245 $aMineral nitrogen impairs the biological nitrogen fixation in soybean of determinate and indeterminate growth types.$h[electronic resource]
260 $c2017
520 $aSoybean (Glycine max Merrill) crop production in Brazil relies mainly on biological nitrogen fixation (BNF) for nitrogen (N) supply. Recent adoption of indeterminate growth-type genotypes has raised doubts on the need for supplemental mineral N that might negatively affect the BNF. We assessed the effects of mineral N on BNF attributes of soybean genotypes grown in central and southern Brazil. Genotypes were inoculated with Bradyrhizobium sp. and/or received mineral N in three sets of experiments. In the first set, two genotypes received increasing rates of mineral N in nutrient solution, which consistently reduced the BNF. In the second set, mineral N applied at sowing and/or topdressing reduced nodulation and ureides-N in determinate and indeterminate growth-type genotypes. In the third set, mineral N applied at R5.3 stage, foliar or as topdressing, did not increase grain yield in four field experiments. Mineral N impaired BNF irrespective of the growth type and had on effect on grain yield.
653 $aFixação biológica de nitrogênio
700 1 $aCEREZINI, P.
700 1 $aSILVA FILHO, P. M. da
700 1 $aOLIVEIRA, A. B. de
700 1 $aOLIVEIRA, M. C. N. de
700 1 $aHUNGRIA, M.
700 1 $aNOGUEIRA, M. A.
773 $tJournal of Plant Nutrition$gv. 40, n. 12, p. 1690-1701, 2017.
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Registro original: |
Embrapa Soja (CNPSO) |
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