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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
19/12/2018 |
Data da última atualização: |
19/12/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
WERNER, F.; AGUIAR e SILVA, M. A. de; FERREIRA, A. S.; NEUMAIER, N.; BALBINOT JUNIOR, A. A. |
Afiliação: |
UEL; UEL; UEL; NORMAN NEUMAIER, CNPSO; ALVADI ANTONIO BALBINOT JUNIOR, CNPSO. |
Título: |
Dinâmica da cobertura do solo por plantas e NDVI de cultivares de soja em diferentes arranjos espaciais de plantas. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Colloquium agrariae, v. 14, n. 2, p. 183-190, abr./jun. 2018. |
DOI: |
10.5747/ca.2018.v14.n2.a220 |
Idioma: |
Português |
Notas: |
Título em inglês: Dynamics of soil coverage by plants and NDVI of soybean cultivars in different plant arrangements. |
Thesagro: |
Crescimento; Densidade de Semeadura; Soja. |
Thesaurus Nal: |
Indeterminate growth; Row spacing; Soybeans. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188976/1/Werner-183.pdf
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Marc: |
LEADER 00907naa a2200253 a 4500 001 2102115 005 2018-12-19 008 2018 bl uuuu u00u1 u #d 024 7 $a10.5747/ca.2018.v14.n2.a220$2DOI 100 1 $aWERNER, F. 245 $aDinâmica da cobertura do solo por plantas e NDVI de cultivares de soja em diferentes arranjos espaciais de plantas.$h[electronic resource] 260 $c2018 500 $aTítulo em inglês: Dynamics of soil coverage by plants and NDVI of soybean cultivars in different plant arrangements. 650 $aIndeterminate growth 650 $aRow spacing 650 $aSoybeans 650 $aCrescimento 650 $aDensidade de Semeadura 650 $aSoja 700 1 $aAGUIAR e SILVA, M. A. de 700 1 $aFERREIRA, A. S. 700 1 $aNEUMAIER, N. 700 1 $aBALBINOT JUNIOR, A. A. 773 $tColloquium agrariae$gv. 14, n. 2, p. 183-190, abr./jun. 2018.
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Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
25/08/2021 |
Data da última atualização: |
30/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
ZOFFOLI, B. C.; BRITO, L. F.; STRALIOTTO, R.; ARAÚJO, A. P. de. |
Afiliação: |
BÁRBARA CAVALHEIRO ZOFFOLI, UFRRJ; LUCIANA FERNANDES BRITO, NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY; ROSANGELA STRALIOTTO, CNPS; ADELSON PAULO DE ARAÚJO, UFRRJ. |
Título: |
Early nitrogen supplementation stimulates the nodulation and growth of common bean plants inoculated with rhizobium. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 43, n. 1, e55105, 2021. |
DOI: |
https://doi.org/10.4025/actasciagron.v43i1.55105 |
Idioma: |
Inglês |
Conteúdo: |
The initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growth of common beans and some supplemental N is necessary. This N should be added in the beginning of growth cycle to stimulate plant growth without inhibiting further nodulation and N fixation. MenosThe initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growt... Mostrar Tudo |
Palavras-Chave: |
Rhizobia. |
Thesagro: |
Fertilizante Nitrogenado; Fixação de Nitrogênio; Inoculação; Phaseolus Vulgaris. |
Thesaurus NAL: |
Nitrogen fertilizers; Nitrogen fixation; Seed inoculation. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225483/1/Early-nitrogen-supplementation-stimulates-2021.pdf
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Marc: |
LEADER 02547naa a2200265 a 4500 001 2133859 005 2021-08-30 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.4025/actasciagron.v43i1.55105$2DOI 100 1 $aZOFFOLI, B. C. 245 $aEarly nitrogen supplementation stimulates the nodulation and growth of common bean plants inoculated with rhizobium.$h[electronic resource] 260 $c2021 520 $aThe initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growth of common beans and some supplemental N is necessary. This N should be added in the beginning of growth cycle to stimulate plant growth without inhibiting further nodulation and N fixation. 650 $aNitrogen fertilizers 650 $aNitrogen fixation 650 $aSeed inoculation 650 $aFertilizante Nitrogenado 650 $aFixação de Nitrogênio 650 $aInoculação 650 $aPhaseolus Vulgaris 653 $aRhizobia 700 1 $aBRITO, L. F. 700 1 $aSTRALIOTTO, R. 700 1 $aARAÚJO, A. P. de 773 $tActa Scientiarum. Agronomy$gv. 43, n. 1, e55105, 2021.
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