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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Pecuária Sudeste. |
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Data corrente: |
17/03/2020 |
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Data da última atualização: |
29/09/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
GOMES, F. J.; PEDREIRA, B. C. e; SANTOS, P. M.; BOSI, C.; LULU, J.; PEDREIRA, C. G. S. |
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Afiliação: |
FAGNER JUNIOR GOMES, USP; BRUNO CARNEIRO E PEDREIRA, CPAMT; PATRICIA MENEZES SANTOS, CPPSE; CRISTIAM BOSI, USP; JORGE LULU, CPAMT; CARLOS GUILHERME SILVEIRA PEDREIRA, USP. |
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Título: |
Microclimate effects on canopy characteristics of shaded palisadegrass pastures in a silvopastoral system in the Amazon biome of central Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
European Journal of Agronomy, v. 115, 126029, 2020. |
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DOI: |
https://doi.org/10.1016/j.eja.2020.126029 |
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Idioma: |
Inglês |
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Conteúdo: |
Forage grass canopies may be affected by the shaded microclimate in silvopastoral (SP) systems throughout the year. This in turn may affect forage plant characteristics. Our objective was to assess microclimate effects on the responses of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf.]} under continuous stocking in an SP system with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S. T. Blake). Trees were planted in triple rows (grove), with three groves per 2-ha silvopasture experimental unit (11° 51? S, 55° 35? W). The spacing between groves was 30 m, and tree density was 135 ha?1, in East-West orientation. Microclimate and forage plant variables were evaluated from December 2016 to March 2018 in the treatments consisting of ?full sun? (FS) grass monoculture pasture and at three distances from the grove: 7.5 m North (7.5 N), 15 m (15), and 7.5 m South (7.5S). Photosynthetically active radiation (PAR) was greatly affected and positively associated with most of the responses of Marandu palisadegrass. On average, PAR reduction in relation to FS was 8, 24, and 40 % for 15, 7.5 N, and 7.5S, respectively. The greatest maximum temperatures (35.8 °C) and the least minimum temperatures (15.8 °C) were registered during the Winter. Both forage accumulation rate (? 45 kg ha?1 d-1) and leaf accumulation rate (? 19 kg ha-1 d-1) were similar between FS and 7.5S (most shaded distance). Shade tolerance mechanisms of palisadegrass under grazing were associated with increases in specific leaf area and leaf proportion, allowing shaded pastures to sustain productivity at levels equivalent to those of pastures without shade. MenosForage grass canopies may be affected by the shaded microclimate in silvopastoral (SP) systems throughout the year. This in turn may affect forage plant characteristics. Our objective was to assess microclimate effects on the responses of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf.]} under continuous stocking in an SP system with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S. T. Blake). Trees were planted in triple rows (grove), with three groves per 2-ha silvopasture experimental unit (11° 51? S, 55° 35? W). The spacing between groves was 30 m, and tree density was 135 ha?1, in East-West orientation. Microclimate and forage plant variables were evaluated from December 2016 to March 2018 in the treatments consisting of ?full sun? (FS) grass monoculture pasture and at three distances from the grove: 7.5 m North (7.5 N), 15 m (15), and 7.5 m South (7.5S). Photosynthetically active radiation (PAR) was greatly affected and positively associated with most of the responses of Marandu palisadegrass. On average, PAR reduction in relation to FS was 8, 24, and 40 % for 15, 7.5 N, and 7.5S, respectively. The greatest maximum temperatures (35.8 °C) and the least minimum temperatures (15.8 °C) were registered during the Winter. Both forage accumulation rate (? 45 kg ha?1 d-1) and leaf accumulation rate (? 19 kg ha-1 d-1) were similar between FS and ... Mostrar Tudo |
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Palavras-Chave: |
Integração pecuária-floresta; IPF; Mato Grosso; Shaded pastures; Silvipastoril; Silvopastoral; Silvopasture; Sinop-MT; Sistemas Integrados; Sustainable systems. |
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Thesagro: |
Microclima; Sistema de Produção. |
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Thesaurus NAL: |
Forage; Light. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02846naa a2200361 a 4500
001 2123632
005 2020-09-29
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.eja.2020.126029$2DOI
100 1 $aGOMES, F. J.
245 $aMicroclimate effects on canopy characteristics of shaded palisadegrass pastures in a silvopastoral system in the Amazon biome of central Brazil.$h[electronic resource]
260 $c2020
520 $aForage grass canopies may be affected by the shaded microclimate in silvopastoral (SP) systems throughout the year. This in turn may affect forage plant characteristics. Our objective was to assess microclimate effects on the responses of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf.]} under continuous stocking in an SP system with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S. T. Blake). Trees were planted in triple rows (grove), with three groves per 2-ha silvopasture experimental unit (11° 51? S, 55° 35? W). The spacing between groves was 30 m, and tree density was 135 ha?1, in East-West orientation. Microclimate and forage plant variables were evaluated from December 2016 to March 2018 in the treatments consisting of ?full sun? (FS) grass monoculture pasture and at three distances from the grove: 7.5 m North (7.5 N), 15 m (15), and 7.5 m South (7.5S). Photosynthetically active radiation (PAR) was greatly affected and positively associated with most of the responses of Marandu palisadegrass. On average, PAR reduction in relation to FS was 8, 24, and 40 % for 15, 7.5 N, and 7.5S, respectively. The greatest maximum temperatures (35.8 °C) and the least minimum temperatures (15.8 °C) were registered during the Winter. Both forage accumulation rate (? 45 kg ha?1 d-1) and leaf accumulation rate (? 19 kg ha-1 d-1) were similar between FS and 7.5S (most shaded distance). Shade tolerance mechanisms of palisadegrass under grazing were associated with increases in specific leaf area and leaf proportion, allowing shaded pastures to sustain productivity at levels equivalent to those of pastures without shade.
650 $aForage
650 $aLight
650 $aMicroclima
650 $aSistema de Produção
653 $aIntegração pecuária-floresta
653 $aIPF
653 $aMato Grosso
653 $aShaded pastures
653 $aSilvipastoril
653 $aSilvopastoral
653 $aSilvopasture
653 $aSinop-MT
653 $aSistemas Integrados
653 $aSustainable systems
700 1 $aPEDREIRA, B. C. e
700 1 $aSANTOS, P. M.
700 1 $aBOSI, C.
700 1 $aLULU, J.
700 1 $aPEDREIRA, C. G. S.
773 $tEuropean Journal of Agronomy$gv. 115, 126029, 2020.
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Embrapa Agrossilvipastoril (CPAMT) |
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