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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
28/06/2019 |
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Data da última atualização: |
04/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCIMENTO, H. L. B. do; PEDREIRA, B. C. e; SOLLENBERGER, L. E.; PEREIRA, D. H.; MAGALHÃES, C. A. de S.; CHIZZOTTI, F. H. M. |
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Afiliação: |
HEMYTHON LUIS BANDEIRA DO NASCIMENTO, IFMT, Guarantã do Norte, MT; BRUNO CARNEIRO E PEDREIRA, CPAMT; LYNN E. SOLLENBERGER, University of Florida, Gainsvile, FL; DALTON HENRIQUE PEREIRA, UFMT, Sinop, MT; CIRO AUGUSTO DE SOUZA MAGALHAES, CPAMT; FERNANDA HELENA MARTINS CHIZZOTTI, UFV, Viçosa, MG. |
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Título: |
Physiological characteristics and forage accumulation of grazed Marandu palisade grass (Brachiaria brizantha) growing in monoculture and in silvopasture with Eucalyptus urograndis. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Crop and pasture science, v. 70, n. 4, p. 384-394, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Adoption of silvopasture is increasing, but proper design and management of pasture?tree associations is required to sustain pasture productivity. Our objective was to compare agronomic and physiological characteristics of Brachiaria brizantha (Hochst. Ex A.Rich.) Stapf. (palisade grass) cv. Marandu growing in monoculture, or in silvopasture with Eucalyptus urograndis, in the Brazilian Amazon biome. Trees were planted in triple rows (intra-row spacing 3m, interrow spacing 3.5 m), referred to as a grove, with three groves per 2-ha silvopasture experimental unit. Space between groves was 30 m, and tree density was 270 ha?1. From October 2015 to September 2016, all experimental units were stocked continuously with cattle by using a variable stocking rate to maintain a Marandu canopy height of 30 cm. In the silvopasture, sampling occurred at 4, 7.5 and 15 m into the non-treed area from the outer tree row in a grove. Photosynthetically active radiation (PAR) reaching the Marandu canopy averaged 21% less for silvopasture than for grass monoculture; however, forage accumulation was not different between systems, nor were Marandu stomatal conductance, water-use efficiency (WUE), transpiration rate, transpiration ratio and leaf temperature. In silvopasture,PARand forage accumulation were33% and 29% less, respectively, at the 4-m distance than the 15-m distance from the edge row of trees, associated with lower transpiration rate and transpiration rate and greater WUE. We conclude that Marandu palisade grass can tolerate PAR reduction in silvopasture up to ~20% without reduction in forage accumulation, supporting its potential use in agroforestry systems for cattle production in the Brazilian Amazon Biome. MenosAdoption of silvopasture is increasing, but proper design and management of pasture?tree associations is required to sustain pasture productivity. Our objective was to compare agronomic and physiological characteristics of Brachiaria brizantha (Hochst. Ex A.Rich.) Stapf. (palisade grass) cv. Marandu growing in monoculture, or in silvopasture with Eucalyptus urograndis, in the Brazilian Amazon biome. Trees were planted in triple rows (intra-row spacing 3m, interrow spacing 3.5 m), referred to as a grove, with three groves per 2-ha silvopasture experimental unit. Space between groves was 30 m, and tree density was 270 ha?1. From October 2015 to September 2016, all experimental units were stocked continuously with cattle by using a variable stocking rate to maintain a Marandu canopy height of 30 cm. In the silvopasture, sampling occurred at 4, 7.5 and 15 m into the non-treed area from the outer tree row in a grove. Photosynthetically active radiation (PAR) reaching the Marandu canopy averaged 21% less for silvopasture than for grass monoculture; however, forage accumulation was not different between systems, nor were Marandu stomatal conductance, water-use efficiency (WUE), transpiration rate, transpiration ratio and leaf temperature. In silvopasture,PARand forage accumulation were33% and 29% less, respectively, at the 4-m distance than the 15-m distance from the edge row of trees, associated with lower transpiration rate and transpiration rate and greater WUE. We conclude that... Mostrar Tudo |
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Palavras-Chave: |
Grazing systems. |
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Thesaurus Nal: |
Chlorophyll; Photosynthesis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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| 2. |  | SAMPAIO, A. P. C.; MÜLLER-CARNEIRO, J.; PEREIRA, A. L. S.; ROSA, M. de F.; MATTOS, A. L. A.; AZEREDO, H. M. C. de; FREIRE, F.; FIGUEIREDO, M. C. B. de. Ecodesign of bio-based films for food packaging: Challenges and recommendations. Environmental Development, v. 48, 100926, 2023. 1 - 16| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Instrumentação. |
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| 3. | | COSTA, M. de A.; MÜLLER-CARNEIRO, J.; ANDRADE, E. P.; SAMPAIO, A. P. C.; BARROS, V. da S.; RAMOS, N. P.; MATSUURA, M. I. da S. F.; FIGUEIREDO, C. B. de. Water scarcity footprint of sugarcane production in the state of São Paulo, Brazil. In: INTERNATIONAL CONFERENCE ON LIFE CYCLE ASSESSMENT OF FOOD, 13., 2022, Lima, Peru. Anais... Lima, Peru, 2022. "The role of emerging economies in global food security". 1-5| Tipo: Artigo em Anais de Congresso |
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