|
|
Registro Completo |
Biblioteca(s): |
Embrapa Rondônia; Embrapa Unidades Centrais. |
Data corrente: |
21/10/2008 |
Data da última atualização: |
02/08/2013 |
Autoria: |
FERNANDES, A. L. T.; NOGUEIRA, M. A. de S.; RABELO, P. V.; ASSIS, L. C. de; MARTINS, C. de A. |
Título: |
Qualidade da água para irrigação do cafeeiro. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Uberaba: UNIUBE, 2004. |
Páginas: |
76 p. |
Série: |
(UNIUBE. Boletim técnico, n. 4). |
Idioma: |
Português |
Notas: |
Consórcio Brasileiro de Pesquisa e Desenvolvimento do Café. |
Conteúdo: |
Neste boletim estaremos discutindo aspectos relacionados à qualidade da água utilizada em irrigação, destacando vários assuntos importantes: o fluxo da água na natureza e os mananciais hídricos, as características da água utilizada na irrigação e sua qualidade, o uso adequado dos equipamentos de irrigação e os impactos ambientais dos projetos de irrigação. |
Palavras-Chave: |
Água na agricultura. |
Thesagro: |
Água; Café; Irrigação; Qualidade. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01070nam a2200253 a 4500 001 1125234 005 2013-08-02 008 2004 bl uuuu 00u1 u #d 100 1 $aFERNANDES, A. L. T. 245 $aQualidade da água para irrigação do cafeeiro. 260 $aUberaba: UNIUBE$c2004 300 $a76 p. 490 $a(UNIUBE. Boletim técnico, n. 4). 500 $aConsórcio Brasileiro de Pesquisa e Desenvolvimento do Café. 520 $aNeste boletim estaremos discutindo aspectos relacionados à qualidade da água utilizada em irrigação, destacando vários assuntos importantes: o fluxo da água na natureza e os mananciais hídricos, as características da água utilizada na irrigação e sua qualidade, o uso adequado dos equipamentos de irrigação e os impactos ambientais dos projetos de irrigação. 650 $aÁgua 650 $aCafé 650 $aIrrigação 650 $aQualidade 653 $aÁgua na agricultura 700 1 $aNOGUEIRA, M. A. de S. 700 1 $aRABELO, P. V. 700 1 $aASSIS, L. C. de 700 1 $aMARTINS, C. de A.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
09/12/2005 |
Data da última atualização: |
13/01/2006 |
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. |
Título: |
Conservation agriculture: making biodiversity work for integrated crop and soil management. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
In: DIVERSITAS: OSC, 1., 2005, Oaxaca. Integrating biodiversity science for human well-being: abstracts. Oaxaca: Diversitas, 2005. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Inglês |
Notas: |
Seção Symposium 9. |
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 |
Categoria do assunto: |
-- |
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Soja (CNPSO) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|