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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
26/01/2018 |
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Data da última atualização: |
26/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEDREIRA, C. G. S.; SILVA, V. J.; PEDREIRA, B. C. e; SOLLENBERGER, L. E. |
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Afiliação: |
CARLOS G. S. PEDREIRA, USP-ESALQ; VALDSON J. SILVA, USP-ESALQ; BRUNO CARNEIRO E PEDREIRA, CPAMT; LYNN E. SOLLENBERGER, UNIVERSITY OF FLORIDA. |
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Título: |
Herbage Accumulation and Organic Reserves of Palisadegrass in Response to Grazing Management based on Canopy Targets. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Crop Science, v. 57, n. 4, p. 2283-2293, 2017. |
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DOI: |
http://dx.doi.org/10.2135/cropsci2016.11.0957 |
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Idioma: |
Inglês |
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Conteúdo: |
Improved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pastures. MenosImproved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pas... Mostrar Tudo |
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Palavras-Chave: |
Forage-livestock systems. |
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Thesagro: |
Brachiaria Brizantha. |
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Thesaurus Nal: |
Canopy; Grazing management; Urochloa brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02262naa a2200229 a 4500
001 2086507
005 2018-01-26
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.2135/cropsci2016.11.0957$2DOI
100 1 $aPEDREIRA, C. G. S.
245 $aHerbage Accumulation and Organic Reserves of Palisadegrass in Response to Grazing Management based on Canopy Targets.$h[electronic resource]
260 $c2017
520 $aImproved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pastures.
650 $aCanopy
650 $aGrazing management
650 $aUrochloa brizantha
650 $aBrachiaria Brizantha
653 $aForage-livestock systems
700 1 $aSILVA, V. J.
700 1 $aPEDREIRA, B. C. e
700 1 $aSOLLENBERGER, L. E.
773 $tCrop Science$gv. 57, n. 4, p. 2283-2293, 2017.
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| 3. |  | GODOY, C. V.; CANTERI, M. G. Efeitos protetor, curativo e erradicante de fungicidas no controle da ferrugem da soja. Summa Phytopathologica, Botucatu, v. 29, n. 1, p. 89, jan./mar. 2003. ref. 163. Resumo apresentado no XXVI Congresso Paulista de Fitopatologia, Araras, SP. fev. 2003.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 6. | | CANTERI, M. G.; GODOY, C. V. Modelos matemáticos para estimar áreas de risco de epidemias para doenças da parte aérea. Fitopatologia Brasileira, Brasília, v. 29, p. S280, ago. 2004. Suplemento. Resumo apresentado no XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, agosto, 2004.| Biblioteca(s): Embrapa Soja. |
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| 12. | | CANTERI, M. G.; GODOY, C. V.; MORESCO, E. Época e número de aplicações para controle da ferrugem da soja em Ponta Grossa, PR, safra 2003/2004. In: REUNIÃO DE PESQUISA DE SOJA NA REGIÃO CENTRAL DO BRASIL, 26., 2004, Ribeirão Preto. Resumos... Londrina: Embrapa Soja: Fundação Meridional, 2004. p. 180-181. (Embrapa Soja. Documentos, 234). Organizado por Odilon Ferreira Saraiva, Janete Lasso Ortiz, Regina Maria Villas Boas de Campos Leite.| Biblioteca(s): Embrapa Soja. |
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| 16. | | RINALDI, D. A.; GODOY, C. V.; CANTERI, M. G. Progresso da ferrugem asiática (Phakopsora pachyrhizi) em cultivares comerciais de soja em Londrina, Paraná. Fitopatologia Brasileira, Brasília, DF, v. 32, p. S236, ago. 2007. Suplemento, resumo 0636. Edição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago. 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Soja. |
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| 20. | | BELAN, H. C.; CANTERI, M. G.; GODOY, C. V. Sistema de simulação de epidemias para a ferrugem da soja. In: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 5.; SIMPÓSIO BRASILEIRO DE TECNOLOGIA DA INFORMAÇÃO NO AGRONEGÓCIO COOPERATIVO, 2., 2005, Londrina. Anais... Londrina: Sociedade Brasileira de Informática Aplicada à Agropecuária e Agroindústria, 2005. Editado por Augusto Guilherme de Araujo e Marcelo Giovanetti Canteri. Evento conhecido como: SBI-AGRO. 1 CD-ROM. 8 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 81 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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