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| 130. |  | URQUIAGA, S.; ALVES, B. J. R.; JANTALIA, C. P.; SOARES, L. H. B.; BODDEY, R. M. Mudanças ambientais: seqüestro de carbono, gases de efeito estufa e educação ambiental. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais. Rio de Janeiro: SBCS: Embrapa Solos: Embrapa Agrobiologia, 2008. 6 p. 1 CD-ROM. (Embrapa Solos. Documentos, 101).| Biblioteca(s): Embrapa Agrobiologia. |
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| 132. | | SCHUNKE, R. M.; KIEHL, J. C.; PAULINO, V. T.; URQUIAGA, S.; BODDEY, R. M. Nitrogen dynamics from decomposing Lltter of Panicum maximum with diifferent nitrogen and phosphorus content in Brazilian alfissol. In: INTERNATIONAL GRASSLAND CONGRESS, 24., INTERNATIONAL RANGELAND CONGRESS, 11., 2020, Kenya. Sustainable use of grassland and rangeland resources for improved livelihoods. Proceedings... Kenya: Kenya Agricultural and Livestock Research Organization, 2021.| Biblioteca(s): Embrapa Agrobiologia. |
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| 133. | | OKITO, A.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Nitrogen fixation by groundnut and velvet bean and residual benefit to a subsequent maize crop. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 12, p. 1183-1190, dezembro 2004 Título em português: Fixação de nitrogênio por amendoim e mucuna e benefício residual para uma cultura de milho.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 134. | | OKITO, A.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Nitrogen fixation by groundnut and velvet bean and residual benefit to a subsequent maize crop. Pesquisa Agropecuária Brasileira, Brasília, v. 39, n. 12, p. 1183-1190, dez, 2004. Fixação de nitrogênio por amendoim e mucuna e benefíco residual para uma cultura de milho.| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 724 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
26/01/2015 |
|
Data da última atualização: |
05/02/2024 |
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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: |
XAVIER, D. F.; LEDO, F. J. da S.; PACIULLO, D. S. C.; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M. |
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Afiliação: |
DEISE FERREIRA XAVIER, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROBERT MICHAEL BODDEY, CNPAB. |
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Título: |
Nitrogen cycling in a Brachiaria-based silvopastoral system in the atlantic forest region of Minas Gerais, Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystem, v. 99, p. 45-62, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
In the south-eastern region of Brazil there are millions of hectares of deforested, almost-treeless hillsides with sparse ground-cover of grasses of African origin. For the establishment of more productive pastures in these areas, silvopastoral systems (SPSs) have been recommended, and the objective of this study was to quantify the N fluxes in the soil/plant/ animal systems as a means compare the sustainability of a SPS planted with legume trees (Acacia mangium and Mimosa artemisiana) and eucalyptus, compared to that of a grass-alone Brachiaria decumbens (BDH) pasture. The annual live weight gain of Zebu 9 Friesian heifers, assessed 5 years after pasture establishment, was significantly higher on the SPS than on the grass-alone pasture, at 205 and 177 kg head-1 year-1 respectively. The N deposited as animal excreta (38?49 kg ha-1 for BDH and SPS, respectively), especially urine, is considered to be much more susceptible to loss than N derived from decomposing plant litter, and was found to be much less than the N recycled though the grass litter (107 and 114 kg ha-1, respectively) in both systems. The extra N recycled in tree-leaf and grass litter increased this by 34 kg N ha-1 in the SPS and we conclude that this would contribute to sustain forage productivity. The added advantage of trees in the provision of shade for the animals and protection from soil erosion should further contribute to the long term sustainable productivity of this SPS. |
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Palavras-Chave: |
Animal intake; Legume trees; Litter deposition; Live weight gain. |
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Thesaurus NAL: |
forage quality; stable isotopes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02235naa a2200253 a 4500
001 2006743
005 2024-02-05
008 2014 bl uuuu u00u1 u #d
100 1 $aXAVIER, D. F.
245 $aNitrogen cycling in a Brachiaria-based silvopastoral system in the atlantic forest region of Minas Gerais, Brazil.$h[electronic resource]
260 $c2014
520 $aIn the south-eastern region of Brazil there are millions of hectares of deforested, almost-treeless hillsides with sparse ground-cover of grasses of African origin. For the establishment of more productive pastures in these areas, silvopastoral systems (SPSs) have been recommended, and the objective of this study was to quantify the N fluxes in the soil/plant/ animal systems as a means compare the sustainability of a SPS planted with legume trees (Acacia mangium and Mimosa artemisiana) and eucalyptus, compared to that of a grass-alone Brachiaria decumbens (BDH) pasture. The annual live weight gain of Zebu 9 Friesian heifers, assessed 5 years after pasture establishment, was significantly higher on the SPS than on the grass-alone pasture, at 205 and 177 kg head-1 year-1 respectively. The N deposited as animal excreta (38?49 kg ha-1 for BDH and SPS, respectively), especially urine, is considered to be much more susceptible to loss than N derived from decomposing plant litter, and was found to be much less than the N recycled though the grass litter (107 and 114 kg ha-1, respectively) in both systems. The extra N recycled in tree-leaf and grass litter increased this by 34 kg N ha-1 in the SPS and we conclude that this would contribute to sustain forage productivity. The added advantage of trees in the provision of shade for the animals and protection from soil erosion should further contribute to the long term sustainable productivity of this SPS.
650 $aforage quality
650 $astable isotopes
653 $aAnimal intake
653 $aLegume trees
653 $aLitter deposition
653 $aLive weight gain
700 1 $aLEDO, F. J. da S.
700 1 $aPACIULLO, D. S. C.
700 1 $aURQUIAGA, S.
700 1 $aALVES, B. J. R.
700 1 $aBODDEY, R. M.
773 $tNutrient Cycling in Agroecosystem$gv. 99, p. 45-62, 2014.
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