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| Registros recuperados : 5 | |
| 1. |  | MARTINS, J. P. R.; SANTOS, B. R.; BARBOSA, S.; MÁXIMO, W. P. F.; BEIJO, L. A.; PAIVA, R. Crescimento e aspectos sintomatológicos na aclimatização de ipê-roxo. Cerne, Lavras, v. 17, n. 4, p. 435-442, out./dez. 2011.| Biblioteca(s): Embrapa Florestas. |
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| 3. | | GUERA, K. C. S.; BALDISSERA, T. C.; GIOSTRI, A. F.; MICHETTI, M.; PORTO, C. G. M.; SANTOS, B. R. C. dos; PONTES, L. da S. Composição morfológica de seis forrageiras perenes tropicais em sistema arborizado com Eucaliptus dunni e ao sol pleno. In: SIMPÓSIO INTERNACIONAL DE ARBORIZAÇÃO DE PASTAGENS EM REGIOES SUBTROPICAIS, 1., 2013, Colombo. Anais. Colombo: Embrapa Florestas, 2014. p. 150-156. (Embrapa Florestas. Documentos, 268).| Biblioteca(s): Embrapa Florestas. |
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| 4. | | PONTES, L. da S.; BALDISSERA, T. C.; BARRO, R. S.; GIOSTRI, A. F.; STAFIN, G.; SANTOS, B. R. C.; PORFIRIO-DA-SILVA, V.; CARVALHO, P. C. de F. Interactive N supply and cutting intensity effect on canopy height at 95% light interception. In: GENERAL MEETING OF THE EUROPEAN GRASSLAND FEDERATION, 25., 2014, Aberystwyth, Wales. EGF at 50: the future of European grasslands: proceedings. Zurich: EGF, 2014. p. 353-355. Disponível online. (Grassland science in Europe, v. 19).| Biblioteca(s): Embrapa Florestas. |
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| 5. | | DOMBROSKI, J. L. D.; PAIVA, R.; ALVES, J. M. C.; SANTOS, B. R.; NOGUEIRA, R. C.; PAIVA, P. D. de O.; BARBOSA, S. Métodos para a superação da dormência fisiológica de Caryocar brasiliense Camb. Cerne, Lavras, v. 16, n. 2, p. 131-135, abr./jun. 2010.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 5 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
29/03/2017 |
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Data da última atualização: |
28/12/2017 |
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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: |
PONTES, L. da S.; CARPINELLI, S.; STAFIN, G.; PORFIRIO-DA-SILVA, V.; SANTOS, B. R. C. dos. |
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Afiliação: |
Laíse da S. Pontes, IAPAR; Sandoval Carpinelli, IAPAR; Giliardi Stafin, IAPAR; VANDERLEY PORFIRIO DA SILVA, CNPF; Betina R. C. dos Santos, IAPAR. |
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Título: |
Relationship between sward height and herbage mass for integrated crop-livestock systems with trees. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Grassland Science, v. 63, n. 1, p. 29-35, Jan. 2017. |
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DOI: |
10.1111/grs.12147 |
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Idioma: |
Inglês |
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Conteúdo: |
Sward height (SH) is an important management variable for both continuous and intermittent stocking, since it is easily measured and highly correlated to herbage mass (HM). However, in systems with trees, tree shading can alter the relationship between SH and HM by changes in the sward structure. Understanding these relationships under shading could help identify and design management practices for swards in association with trees. The aim of this study was to investigate the SH and HM relationship for a continuously stocked mixed black oat (Avena strigosa Schreb.) + annual ryegrass (Lolium multiflorum Lam.) pasture in two systems, i.e. with and without trees, with two levels of nitrogen (N) (90 vs. 180 kg N ha−1), three replicates and over 2 years (2014/2015). Comparison of regression lines was performed between SH (x-variable) and HM (y-variable), showing mainly a system effect. Shading altered the relationship between SH and HM in order of magnitude (i.e. different intercepts), but not in the rate of change (i.e. equal slopes). Regardless the SH, oat + ryegrass mixture under trees produced 698 kg of dry matter (DM) ha−1 less than those without trees. Therefore, a target SH used at full sun systems as an index for management (e.g. 20 cm) might not apply under trees with >50% shade, since HM may be limiting to ensure intake of grazing animals (e.g. <1200 kg DM ha−1). The shade level must be controlled to optimize the yield of these forage species and to maintain the necessary HM to ensure the sustainability of no-till silvopastoral systems. MenosSward height (SH) is an important management variable for both continuous and intermittent stocking, since it is easily measured and highly correlated to herbage mass (HM). However, in systems with trees, tree shading can alter the relationship between SH and HM by changes in the sward structure. Understanding these relationships under shading could help identify and design management practices for swards in association with trees. The aim of this study was to investigate the SH and HM relationship for a continuously stocked mixed black oat (Avena strigosa Schreb.) + annual ryegrass (Lolium multiflorum Lam.) pasture in two systems, i.e. with and without trees, with two levels of nitrogen (N) (90 vs. 180 kg N ha−1), three replicates and over 2 years (2014/2015). Comparison of regression lines was performed between SH (x-variable) and HM (y-variable), showing mainly a system effect. Shading altered the relationship between SH and HM in order of magnitude (i.e. different intercepts), but not in the rate of change (i.e. equal slopes). Regardless the SH, oat + ryegrass mixture under trees produced 698 kg of dry matter (DM) ha−1 less than those without trees. Therefore, a target SH used at full sun systems as an index for management (e.g. 20 cm) might not apply under trees with >50% shade, since HM may be limiting to ensure intake of grazing animals (e.g. <1200 kg DM ha−1). The shade level must be controlled to optimize the yield of these forage species and to ma... Mostrar Tudo |
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Palavras-Chave: |
Black oat; Eucalyptus dunnii; Sistema silvipastoril; Sombramento. |
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Thesagro: |
Eucalipto. |
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Thesaurus NAL: |
Lolium; Shade agroforestry systems; Silvopastoral systems. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02419naa a2200277 a 4500
001 2067805
005 2017-12-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1111/grs.12147$2DOI
100 1 $aPONTES, L. da S.
245 $aRelationship between sward height and herbage mass for integrated crop-livestock systems with trees.$h[electronic resource]
260 $c2017
520 $aSward height (SH) is an important management variable for both continuous and intermittent stocking, since it is easily measured and highly correlated to herbage mass (HM). However, in systems with trees, tree shading can alter the relationship between SH and HM by changes in the sward structure. Understanding these relationships under shading could help identify and design management practices for swards in association with trees. The aim of this study was to investigate the SH and HM relationship for a continuously stocked mixed black oat (Avena strigosa Schreb.) + annual ryegrass (Lolium multiflorum Lam.) pasture in two systems, i.e. with and without trees, with two levels of nitrogen (N) (90 vs. 180 kg N ha−1), three replicates and over 2 years (2014/2015). Comparison of regression lines was performed between SH (x-variable) and HM (y-variable), showing mainly a system effect. Shading altered the relationship between SH and HM in order of magnitude (i.e. different intercepts), but not in the rate of change (i.e. equal slopes). Regardless the SH, oat + ryegrass mixture under trees produced 698 kg of dry matter (DM) ha−1 less than those without trees. Therefore, a target SH used at full sun systems as an index for management (e.g. 20 cm) might not apply under trees with >50% shade, since HM may be limiting to ensure intake of grazing animals (e.g. <1200 kg DM ha−1). The shade level must be controlled to optimize the yield of these forage species and to maintain the necessary HM to ensure the sustainability of no-till silvopastoral systems.
650 $aLolium
650 $aShade agroforestry systems
650 $aSilvopastoral systems
650 $aEucalipto
653 $aBlack oat
653 $aEucalyptus dunnii
653 $aSistema silvipastoril
653 $aSombramento
700 1 $aCARPINELLI, S.
700 1 $aSTAFIN, G.
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aSANTOS, B. R. C. dos
773 $tGrassland Science$gv. 63, n. 1, p. 29-35, Jan. 2017.
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