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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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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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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 84 | |
| 6. |  | FAVORETO, M. G.; DERESZ, F.; FERNANDES, A. M.; VIEIRA, R. A. M.; FONTES, C. A. A. Avaliação nutricional da grama-estrela cv. Africana para vacas leiteiras em condições de pastejo. Revista Brasileira de Zootecnia, Viçosa, MG, v. 37, n. 2, p. 319-327, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | SORATTO, R. P.; FERNANDES, A. M.; CRUSCIOL, C. A. C.; SOUZA-SCHLICK, G.D. de. Produtividade, qualidade de tubérculos e incidência de doenças em batata, influenciados pela aplicação foliar de silício. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 7, p. 1000-1006, jul. 2012. Título em inglês: Yield, tuber quality, and disease incidence on potato crop as affected by silicon leaf application.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | JORDÃO, A. R.; DERESZ, F.; MORENZ, M. J. F.; FERNANDES, A. M.; BALDI, D. G. Perdas de forragem em pastagens de capim-Tanzânia (Panicum maximum Jacq cv. Tanzania-1) submetidas a pastejo rotativo com intervalo entre desfolhas fixo ou flexível. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | FERNANDES, A. M. S.; NASCIMENTO, A. S. do; BARBOSA, C. de J.; ABREU, E. F. M. Estudos de transmissão das principais espécies de cigarrinhas vetoras de Xylella fastidiosa no estado da Bahia. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro : [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 13. | | FERNANDES, A. M. S.; ABREU, E. F. M.; NASCIMENTO, A. S. do; BARBOSA, C. de J. Estudos de transmissão das principais espécies de cigarrinhas vetoras de Xylella fatidiosa, no Estado da Bahia e Sergipe. In: SEMINÁRIO SOBRE INTENSIFICAÇÃO ECOLÓGICA DA FRUTICULTURA, 3; REUNIÃO COMITÊ GESTOR DO PROJETO SISTEMA ECOLOGICAMENTE INTENSIVO DE PRODUÇÃO DE FRUTAS. 3., 2014,Brasília, DF; Aracaju, SE. Seifrut: [anais..]. Aracaju, SE: Embrapa Tabuleiros Costeiros, 2014. p.121. Editores Técnicos: Carlos Roberto Martins, Embrapa Clima Temperado; Francisco Alisson Xavier, Embrapa Mandioca; Antônio Souza do Nascimento, Embrapa Mandioca e Fruticultura.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 18. | | FERNANDES, A. M.; SORATTO, R. P. S.; SILVA, B. L.; SOUZA-SCHLICK, G. D. de. Crescimento, acúmulo e distribuição de matéria seca em cultivares de batata na safra de inverno. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 8, p. 826-835, ago. 2010 Título em inglês: Growth and dry matter accumulation and distribution in potato cultivars during the winter crop season.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 84 | |
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