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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
22/08/2000 |
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Data da última atualização: |
22/08/2000 |
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Autoria: |
MACEDO, M. C. |
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Título: |
Sustainability of pasture production in the savannas of tropical America. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONFERENCE, 18., 1997, Winnipeg and Saskatoon. Proceedings. [S.l.]: Canadian Forage Council/Canadian Society of Agronomy/Canadian Society of Animal Science, 1999. |
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Idioma: |
Inglês |
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Notas: |
Grasslands 2000. |
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Conteúdo: |
"Savannas" regions are the last and more important frontier to agricultural and livestock exploitation in Tropical America. Amazon jungle is another important native region but because of is great biodiversity and fragility, it has serious constraints to common agricultural exploitation. Brazil, Venezuela and Colombia have the largest area of Savannas in Lation America. More than 80% of that is in Brazil and in this country, the horizontal expansion in savannas is near the end. Since 1970, natural vegetation has been rapidly substituted by introduced grasses from Africa. A monoculture grassland of Brachiaria decumbens is dangerously covering large areas of brazilian savannas. Estimates reach up to 40 million ha. Initial impact caused by this introduction increased animal production 2 to 3 folds compared to native grassland. After that, soil, animal and pasture mismanagement led to pasture degradation, declining animal yields ans to potential environment problems. Pasture mismanagement led to pasture degradation, declining animal yieds and to potential environment problems. Pasture degradation must be avoided and sustainability of pasture and animal production pursued. Understanding sustainability and seaching for indicators to monitor to monitor it should be emphasized. Some suggestions such as diversification of grasses species in the current farming systems, increasing use of grass-legume pasture, chemical and mechanical recuperation and adoption of agropastoral systems are some alternatives to reach sustainability. Menos"Savannas" regions are the last and more important frontier to agricultural and livestock exploitation in Tropical America. Amazon jungle is another important native region but because of is great biodiversity and fragility, it has serious constraints to common agricultural exploitation. Brazil, Venezuela and Colombia have the largest area of Savannas in Lation America. More than 80% of that is in Brazil and in this country, the horizontal expansion in savannas is near the end. Since 1970, natural vegetation has been rapidly substituted by introduced grasses from Africa. A monoculture grassland of Brachiaria decumbens is dangerously covering large areas of brazilian savannas. Estimates reach up to 40 million ha. Initial impact caused by this introduction increased animal production 2 to 3 folds compared to native grassland. After that, soil, animal and pasture mismanagement led to pasture degradation, declining animal yields ans to potential environment problems. Pasture mismanagement led to pasture degradation, declining animal yieds and to potential environment problems. Pasture degradation must be avoided and sustainability of pasture and animal production pursued. Understanding sustainability and seaching for indicators to monitor to monitor it should be emphasized. Some suggestions such as diversification of grasses species in the current farming systems, increasing use of grass-legume pasture, chemical and mechanical recuperation and adoption of agropastoral systems ar... Mostrar Tudo |
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Palavras-Chave: |
America Tropical; Sustainability; Sustentabilidade. |
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Thesagro: |
Brachiaria; Cerrado; Pastagem. |
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Thesaurus Nal: |
Panicum; pastures. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02285naa a2200229 a 4500
001 1555352
005 2000-08-22
008 1999 bl uuuu u00u1 u #d
100 1 $aMACEDO, M. C.
245 $aSustainability of pasture production in the savannas of tropical America.
260 $c1999
500 $aGrasslands 2000.
520 $a"Savannas" regions are the last and more important frontier to agricultural and livestock exploitation in Tropical America. Amazon jungle is another important native region but because of is great biodiversity and fragility, it has serious constraints to common agricultural exploitation. Brazil, Venezuela and Colombia have the largest area of Savannas in Lation America. More than 80% of that is in Brazil and in this country, the horizontal expansion in savannas is near the end. Since 1970, natural vegetation has been rapidly substituted by introduced grasses from Africa. A monoculture grassland of Brachiaria decumbens is dangerously covering large areas of brazilian savannas. Estimates reach up to 40 million ha. Initial impact caused by this introduction increased animal production 2 to 3 folds compared to native grassland. After that, soil, animal and pasture mismanagement led to pasture degradation, declining animal yields ans to potential environment problems. Pasture mismanagement led to pasture degradation, declining animal yieds and to potential environment problems. Pasture degradation must be avoided and sustainability of pasture and animal production pursued. Understanding sustainability and seaching for indicators to monitor to monitor it should be emphasized. Some suggestions such as diversification of grasses species in the current farming systems, increasing use of grass-legume pasture, chemical and mechanical recuperation and adoption of agropastoral systems are some alternatives to reach sustainability.
650 $aPanicum
650 $apastures
650 $aBrachiaria
650 $aCerrado
650 $aPastagem
653 $aAmerica Tropical
653 $aSustainability
653 $aSustentabilidade
773 $tIn: INTERNATIONAL GRASSLAND CONFERENCE, 18., 1997, Winnipeg and Saskatoon. Proceedings. [S.l.]: Canadian Forage Council/Canadian Society of Agronomy/Canadian Society of Animal Science, 1999.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 544 | |
| 43. |  | MACEDO, M. C. M.; ZIMMER, A. H. Potencial para Adoção da Estratégia de Integração Lavoura-Pecuária e de Integração Lavoura-Pecuária-Floresta para recuperação de pastagens degradadas In: CORDEIRO, L. A. M.; VILELA, L.; KLUTHCOUSKI, J.; MARCHÃO, R. L. (Ed.). Integração lavoura-pecuária-floresta: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa, 2015. p.307-318 (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 44. | | CRUVINEL, P. E.; MACEDO, M. F. de. Equalizador gráfico de oitavas de 10 bandas. In: REUNIÃO ANUAL DA SBPC, 37., 1985, Belo Horizonte. Ciência e Cultura, São Paulo, v. 37, n. 7, p. 25, 1985. Suplemento. Resumo. Ref. 01-A.5.2.| Biblioteca(s): Embrapa Instrumentação. |
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| 52. | | SANTOS JÚNIOR, T. S. S.; MACEDO, M. Dispersão de sementes por cachorro-do-mato, Cerdocyon thous como ferramenta para a manutenção da diversidade florística em áreas de cerrado fragmentadas e manejadas para cultivo de teca, Tectona grandiis, (Jangada, MT). In: SIMPÓSIO NACIONAL E CONGRESSO LATINO-AMERICANO [SOBRE] RECUPERAÇÃO DE ÁREAS DEGRADADAS, 6., 2005, Curitiba. Anais. Curitiba: SOBRADE, 2005. p. 451.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 544 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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