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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
05/05/2008 |
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Data da última atualização: |
12/12/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
OLIVEIRA, L. C. de; VALENTIM, N. W.; FIGUEIREDO, E. O.; FRANKE, I. L. |
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Afiliação: |
LUIS CLAUDIO DE OLIVEIRA, CPAF-AC; NÁDIA WALESKA VALENTIM; EVANDRO ORFANO FIGUEIREDO, CPAF-AC; IDESIO LUIS FRANKE, CPAF-AC. |
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Título: |
Impactos antrópicos de la fragmentación forestal: explotación selectiva de madera. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: CONGRESO FORESTAL LATINOAMERICANO, 2., 2002, Guatemala. Bienes y servicios del bosque fuente de desarrollo sostenible: anales. Guatemala: ITTO: INAB: PAFG, 2002. |
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Páginas: |
9 p. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Espanhol |
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Conteúdo: |
El aumento contínuo de pressiones socioconómicas sobre las forestas tropicales húmedas, especialmente por la expansion de la frontera agrícola, han resultado en deforestación al rededor del eje rodoviario, y un mosaico de fragmentos aislado. El estudio prueba la hipotesi de que hay impactos de gran significancia en terminos de biomasa viva, arriba del nivel del suelo entre las areas en proceso de fragmentacion. |
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Palavras-Chave: |
Exploração vegetal. |
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Thesagro: |
Madeira. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/508879/1/17392.pdf
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Marc: |
LEADER 01113nam a2200193 a 4500
001 1508879
005 2023-12-12
008 2002 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, L. C. de
245 $aImpactos antrópicos de la fragmentación forestal$bexplotación selectiva de madera.$h[electronic resource]
260 $aIn: CONGRESO FORESTAL LATINOAMERICANO, 2., 2002, Guatemala. Bienes y servicios del bosque fuente de desarrollo sostenible: anales. Guatemala: ITTO: INAB: PAFG$c2002
300 $a9 p.$c1 CD-ROM.
520 $aEl aumento contínuo de pressiones socioconómicas sobre las forestas tropicales húmedas, especialmente por la expansion de la frontera agrícola, han resultado en deforestación al rededor del eje rodoviario, y un mosaico de fragmentos aislado. El estudio prueba la hipotesi de que hay impactos de gran significancia en terminos de biomasa viva, arriba del nivel del suelo entre las areas en proceso de fragmentacion.
650 $aAmazonia
650 $aMadeira
653 $aExploração vegetal
700 1 $aVALENTIM, N. W.
700 1 $aFIGUEIREDO, E. O.
700 1 $aFRANKE, I. L.
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Embrapa Acre (CPAF-AC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Cerrados; Embrapa Milho e Sorgo. |
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Data corrente: |
22/03/2021 |
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Data da última atualização: |
22/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ALVES, G. C.; SANTOS, C. L. R. dos; ZILLI, J. E.; REIS JUNIOR, F. B. dos; MARRIEL, I. E.; BREDA, F. A. da F.; BODDEY, R. M.; REIS, V. M. |
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Afiliação: |
GABRIELA C. ALVES, UFRRJ; CARLOS L. R. DOS SANTOS, UFMS; JERRI EDSON ZILLI, CNPAB; FABIO BUENO DOS REIS JUNIOR, CPAC; IVANILDO EVODIO MARRIEL, CNPMS; FARLEY A. DA F. BREDA, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; VERONICA MASSENA REIS, CNPAB. |
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Título: |
Agronomic evaluation of Herbaspirillum seropedicae strain ZAE94 as an inoculant to improve maize yield in Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Pedosphere, v. 31, n. 4, p. 583-595, 2021. |
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ISSN: |
1002-0160 |
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DOI: |
10.1016/S1002-0160(21)60004-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Diazotrophic bacteria applied as a seed inoculant can improve the grain yield of several crops including maize. The current study aimed to test the agronomic efficiency and contribution of biological nitrogen fixation (BNF) of the endophytic diazotroph Herbaspirillum seropedicae strain ZAE94 to maize under field conditions. Eighteen field assays were conducted in four different locations during consecutive years on two hybrids and two varieties of maize in a random block design with four replicates using a peat-based inoculant. The inoculant containing the ZAE94 strain was applied without nitrogen (N) fertilization or with 40 kg N ha−1 and was compared to the application of 40 and 80 kg N ha−1 without inoculation. Crop productivity and N accumulation in the grain were evaluated in addition to 15N natural abundance (δ 15N) to evaluate BNF in the treatments without N fertilization. Fertilization at 40 kg N ha−1 plus bacterial inoculation produced crop yields similar to the treatment with 80 kg N ha−1 and increased grain N content, especially in the off-season with 40 kg N ha−1 . The inoculation treatments showed lower δ 15N values than the non-inoculated treatments, which was most evident in the off-season. The BNF contributed about 30% of N accumulated in plants inoculated with ZAE94. On average, 64% of the N fertilized plots showed an increase of the parameters evaluated in the inoculated treatments, compared with the control. Inoculation also increased root length, root volume, and leaf area, and these parameters were positively correlated with plant weight using a hydroponic assay. This study revealed that the application of H. seropedicae inoculant increased the amount of N in plants owing to BNF, and there is a better chance of yield response to inoculation under low N fertilizer application in the off-season. MenosDiazotrophic bacteria applied as a seed inoculant can improve the grain yield of several crops including maize. The current study aimed to test the agronomic efficiency and contribution of biological nitrogen fixation (BNF) of the endophytic diazotroph Herbaspirillum seropedicae strain ZAE94 to maize under field conditions. Eighteen field assays were conducted in four different locations during consecutive years on two hybrids and two varieties of maize in a random block design with four replicates using a peat-based inoculant. The inoculant containing the ZAE94 strain was applied without nitrogen (N) fertilization or with 40 kg N ha−1 and was compared to the application of 40 and 80 kg N ha−1 without inoculation. Crop productivity and N accumulation in the grain were evaluated in addition to 15N natural abundance (δ 15N) to evaluate BNF in the treatments without N fertilization. Fertilization at 40 kg N ha−1 plus bacterial inoculation produced crop yields similar to the treatment with 80 kg N ha−1 and increased grain N content, especially in the off-season with 40 kg N ha−1 . The inoculation treatments showed lower δ 15N values than the non-inoculated treatments, which was most evident in the off-season. The BNF contributed about 30% of N accumulated in plants inoculated with ZAE94. On average, 64% of the N fertilized plots showed an increase of the parameters evaluated in the inoculated treatments, compared with the control. Inoculat... Mostrar Tudo |
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Palavras-Chave: |
15N natural abundance; Agronomic efficiency; Biological nitrogen fixation; Endophytic diazotroph; Inoculation. |
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Thesagro: |
Fixação de Nitrogênio; Inoculação. |
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Thesaurus NAL: |
Nitrogen fixation; Plant growth; Plant growth-promoting rhizobacteria; Seed inoculation. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02997naa a2200361 a 4500
001 2130845
005 2021-03-22
008 2021 bl uuuu u00u1 u #d
022 $a1002-0160
024 7 $a10.1016/S1002-0160(21)60004-8$2DOI
100 1 $aALVES, G. C.
245 $aAgronomic evaluation of Herbaspirillum seropedicae strain ZAE94 as an inoculant to improve maize yield in Brazil.$h[electronic resource]
260 $c2021
520 $aDiazotrophic bacteria applied as a seed inoculant can improve the grain yield of several crops including maize. The current study aimed to test the agronomic efficiency and contribution of biological nitrogen fixation (BNF) of the endophytic diazotroph Herbaspirillum seropedicae strain ZAE94 to maize under field conditions. Eighteen field assays were conducted in four different locations during consecutive years on two hybrids and two varieties of maize in a random block design with four replicates using a peat-based inoculant. The inoculant containing the ZAE94 strain was applied without nitrogen (N) fertilization or with 40 kg N ha−1 and was compared to the application of 40 and 80 kg N ha−1 without inoculation. Crop productivity and N accumulation in the grain were evaluated in addition to 15N natural abundance (δ 15N) to evaluate BNF in the treatments without N fertilization. Fertilization at 40 kg N ha−1 plus bacterial inoculation produced crop yields similar to the treatment with 80 kg N ha−1 and increased grain N content, especially in the off-season with 40 kg N ha−1 . The inoculation treatments showed lower δ 15N values than the non-inoculated treatments, which was most evident in the off-season. The BNF contributed about 30% of N accumulated in plants inoculated with ZAE94. On average, 64% of the N fertilized plots showed an increase of the parameters evaluated in the inoculated treatments, compared with the control. Inoculation also increased root length, root volume, and leaf area, and these parameters were positively correlated with plant weight using a hydroponic assay. This study revealed that the application of H. seropedicae inoculant increased the amount of N in plants owing to BNF, and there is a better chance of yield response to inoculation under low N fertilizer application in the off-season.
650 $aNitrogen fixation
650 $aPlant growth
650 $aPlant growth-promoting rhizobacteria
650 $aSeed inoculation
650 $aFixação de Nitrogênio
650 $aInoculação
653 $a15N natural abundance
653 $aAgronomic efficiency
653 $aBiological nitrogen fixation
653 $aEndophytic diazotroph
653 $aInoculation
700 1 $aSANTOS, C. L. R. dos
700 1 $aZILLI, J. E.
700 1 $aREIS JUNIOR, F. B. dos
700 1 $aMARRIEL, I. E.
700 1 $aBREDA, F. A. da F.
700 1 $aBODDEY, R. M.
700 1 $aREIS, V. M.
773 $tPedosphere$gv. 31, n. 4, p. 583-595, 2021.
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