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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
09/12/2005 |
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Data da última atualização: |
13/01/2006 |
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Autoria: |
BROWN, G. G.; HUNGRIA, M.; FRANCHINI, J. C.; SOUZA, R. A.; KASCHUK, G.; BRANDÃO JUNIOR, O.; PERIERA, A. A.; BRUSSAARD, L.; GOEDE, R. G. M. de; TORRES, E. |
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Título: |
Conservation agriculture: making biodiversity work for integrated crop and soil management. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: DIVERSITAS: OSC, 1., 2005, Oaxaca. Integrating biodiversity science for human well-being: abstracts. Oaxaca: Diversitas, 2005. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Notas: |
Seção Symposium 9. |
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Conteúdo: |
Soil microorganisms and animals are an essential part of agrobiodiversity and perform functions vital for agricultural productivity and sustainability. Their activity and biodiversity may be useful indicators of soil quality, ecosystem disturbance and the integrity of ecosystem functioning. Conservation agriculture and the adoption of no-tillage (NT) in the tropics is finally reversing physical, chemical, and biological soil degradation; in Brazil, 19 M ha are now devoted to NT. To evaluate the effect of different management practices on below-ground biodiversity, we monitored several long-term field trials in southern Brazil, including 2-25 yr NT and crop rotations based on soybean (Glycine max) or common bean (Phaseolus vulgaris). C- and N-microbial biomass and metabolic microbial efficiency were always higher in NT than in conventional tillage (CT) systems and were enhanced by legumes in the rotation. Bacterial and fungal genetic diversity, evaluated by the DGGE analysis, were also higher under both NT and rotation systems including legumes. Diversity of rhizobial strains (assessed by PCR-RFLP) was also higher under NT, although species diversity was not always higher. The environmental stability offered by the NT system may decrease total species diversity, but simultaneously increase genetic diversity within each species. Soil macrofauna diversity was higher in NT (16-18 orders) than in CT (12-13 orders), while rotations seemed to have a secondary effect. Tillage selected for resistant organisms, and in its absence a more diverse, yet more "fragile" assemblage was able to persist, performing a larger number of functions. The results obtained emphasize the benefits of NT and crop rotation with legumes, but also indicate a poor understanding of the complex relationship between soil biodiversity and sustainability and the challenges to adequately evaluate and monitor soil quality. MenosSoil microorganisms and animals are an essential part of agrobiodiversity and perform functions vital for agricultural productivity and sustainability. Their activity and biodiversity may be useful indicators of soil quality, ecosystem disturbance and the integrity of ecosystem functioning. Conservation agriculture and the adoption of no-tillage (NT) in the tropics is finally reversing physical, chemical, and biological soil degradation; in Brazil, 19 M ha are now devoted to NT. To evaluate the effect of different management practices on below-ground biodiversity, we monitored several long-term field trials in southern Brazil, including 2-25 yr NT and crop rotations based on soybean (Glycine max) or common bean (Phaseolus vulgaris). C- and N-microbial biomass and metabolic microbial efficiency were always higher in NT than in conventional tillage (CT) systems and were enhanced by legumes in the rotation. Bacterial and fungal genetic diversity, evaluated by the DGGE analysis, were also higher under both NT and rotation systems including legumes. Diversity of rhizobial strains (assessed by PCR-RFLP) was also higher under NT, although species diversity was not always higher. The environmental stability offered by the NT system may decrease total species diversity, but simultaneously increase genetic diversity within each species. Soil macrofauna diversity was higher in NT (16-18 orders) than in CT (12-13 orders), while rotations seemed to have a secondary effect. Tillage select... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02699naa a2200253 a 4500
001 1468621
005 2006-01-13
008 2005 bl uuuu u00u1 u #d
100 1 $aBROWN, G. G.
245 $aConservation agriculture$bmaking biodiversity work for integrated crop and soil management.
260 $c2005
300 $c1 CD-ROM.
500 $aSeção Symposium 9.
520 $aSoil microorganisms and animals are an essential part of agrobiodiversity and perform functions vital for agricultural productivity and sustainability. Their activity and biodiversity may be useful indicators of soil quality, ecosystem disturbance and the integrity of ecosystem functioning. Conservation agriculture and the adoption of no-tillage (NT) in the tropics is finally reversing physical, chemical, and biological soil degradation; in Brazil, 19 M ha are now devoted to NT. To evaluate the effect of different management practices on below-ground biodiversity, we monitored several long-term field trials in southern Brazil, including 2-25 yr NT and crop rotations based on soybean (Glycine max) or common bean (Phaseolus vulgaris). C- and N-microbial biomass and metabolic microbial efficiency were always higher in NT than in conventional tillage (CT) systems and were enhanced by legumes in the rotation. Bacterial and fungal genetic diversity, evaluated by the DGGE analysis, were also higher under both NT and rotation systems including legumes. Diversity of rhizobial strains (assessed by PCR-RFLP) was also higher under NT, although species diversity was not always higher. The environmental stability offered by the NT system may decrease total species diversity, but simultaneously increase genetic diversity within each species. Soil macrofauna diversity was higher in NT (16-18 orders) than in CT (12-13 orders), while rotations seemed to have a secondary effect. Tillage selected for resistant organisms, and in its absence a more diverse, yet more "fragile" assemblage was able to persist, performing a larger number of functions. The results obtained emphasize the benefits of NT and crop rotation with legumes, but also indicate a poor understanding of the complex relationship between soil biodiversity and sustainability and the challenges to adequately evaluate and monitor soil quality.
700 1 $aHUNGRIA, M.
700 1 $aFRANCHINI, J. C.
700 1 $aSOUZA, R. A.
700 1 $aKASCHUK, G.
700 1 $aBRANDÃO JUNIOR, O.
700 1 $aPERIERA, A. A.
700 1 $aBRUSSAARD, L.
700 1 $aGOEDE, R. G. M. de
700 1 $aTORRES, E.
773 $tIn: DIVERSITAS: OSC, 1., 2005, Oaxaca. Integrating biodiversity science for human well-being: abstracts. Oaxaca: Diversitas, 2005.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 66 | |
| 7. |  | ZANELA, M. B.; RIBEIRO, M. E. R.; FISCHER, V.; KOLLING, G. J.; STUMPF, M. T. Fatores não nutricionais e leite instável não ácido. In: SCHAFHAUSER JUNIOR, J.; PEGORARO, L. M. C.; ZANELA, M. B. (Ed.). Tecnologias para sistemas de produção de leite. Brasília, DF: Embrapa, 2016 437 p. p. 337-356| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 8. | | FISCHER, V.; KOLLING, G. J.; GABBI, A. M.; PEREIRA, L. G. R.; MATTÉ, C. Feeding oregano and green tea extracts to dairy cows affects blood profile and oxidative status. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Zootecnia: otimizando recursos e potencialidades: anais. Brasília, DF: Sociedade Brasileira de Zootecnia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | RIBEIRO, M. E. R.; KOLLING, G. J.; ZANELA, M. B.; STUMPF, M. T.; SCHRAMM, R. C. Monitoramento da mastite em um rebanho jersey no sul do Rio Grande do Sul: resultados parciais 2011. In: FÓRUM DE PRODUÇÃO PECUÁRIA-LEITE, 14.; SALÃO DE TRABALHOS CIENTÍFICOS, 1., 2011, Cruz Alta. Anais... Cruz Alta: Unicruz Campus, 2011. p. 201-206.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 12. | | FISCHER, V.; KOLLING, G. J.; GABBI, A. M.; PEREIRA, L. G. R. Oregano and green tea extracts as additives in the diet of dairy cows. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, v. 53. p. 1. Anais... Gramado, RS, 2016 In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Zootecnia: otimizando recursos e potencialidades: anais. Brasília, DF: Sociedade Brasileira de Zootecnia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | ZANELA, M. B.; KROLOW, A. C. R.; KOLLING, G. J.; RIBEIRO, M. E. R. Qualidade do leite de búfala e dos derivados lácteos produzidos - 2. Queijo Minas Frescal¹. In: CONGRESSO INTERNACIONAL DO LEITE, 11.; WORKSHOP SOBRE POLÍTICAS PÚBLICAS, 11.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 12., 2012, Goiânia. Anais... Juiz de Fora: Embrapa Gado de Leite, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 15. | | ZANELA, M. B.; KOLLING, G. J.; KROLOW, A. C. R.; RIBEIRO, M. E. R. Qualidade microbiológica de queijos de leite de búfala comercializados no RS¹. In: CONGRESSO INTERNACIONAL DO LEITE, 11.; WORKSHOP SOBRE POLÍTICAS PÚBLICAS, 11.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 12., 2012, Goiânia. Anais... Juiz de Fora: Embrapa Gado de Leite, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 16. | | RIBEIRO, M. E. R.; KOLLING, G. J.; ZANELA, M. B.; SANTOS, C. S. dos; PERIN, L.; FISCHER, V. Composição do leite normal e do LINA em rebanho jersey: resultados preliminares 2011. In.: CONFERENCIA INTERNACIONAL SOBRE LECHE INESTABLE, 2., 2011, Colonia. [Anais...]. Colonia: Instituto Nacional de Investigación Agropecuaria de Uruguay, 2011. p. 62.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 18. | | KOLLING, G. J.; ZANELA, M. B.; FERNANDEZ, V. N. V.; CANELLAS, L. C.; RIBEIRO, M. E. R.; FISCHER, V. Caracterização do sistema de produção de leite de búfala no Rio Grande do Sul. In: CONGRESSO BRASILEIRO DE MEDICINA VETERINÁRIA, 38., 2011, Florianópolis. Anais. Florianópolis: Sociedade Brasileira de Medicina Veterinária, 2011. p. 1-3| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 66 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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