|
|
Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
18/10/1994 |
Data da última atualização: |
22/04/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SARTORATO, A.; MENTE, E. M.; MENTEN, J. O. M.; FANCELLI, A. L. |
Afiliação: |
ALOISIO SARTORATO, CNPAF; EVAIR M. MENTE, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ; JOSE OTAVIO M. MENTEN, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ; ANTONIO L. FANCELLI, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ. |
Título: |
Quantificacao de doencas de milho em dois sistemas de preparo do solo. |
Ano de publicação: |
1991 |
Fonte/Imprenta: |
Revista de Agricultura, Piracicaba, v. 66, n. 2, p. 149-156, 1991. |
Idioma: |
Português |
Conteúdo: |
O objetivo do presente estudo foi avaliar a ocorrência e quantidade de doenças na cultura do milho semeado no sistema de plantio direto e no convencional, em rotação com a cultura da soja. |
Palavras-Chave: |
Quantificacao. |
Thesagro: |
Doença; Milho; Plantio Direto; Rotação de Cultura; Soja; Solo. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/197558/1/revista-agicultura-1991.pdf
|
Marc: |
LEADER 00855naa a2200241 a 4500 001 1197558 005 2024-04-22 008 1991 bl uuuu u00u1 u #d 100 1 $aSARTORATO, A. 245 $aQuantificacao de doencas de milho em dois sistemas de preparo do solo.$h[electronic resource] 260 $c1991 520 $aO objetivo do presente estudo foi avaliar a ocorrência e quantidade de doenças na cultura do milho semeado no sistema de plantio direto e no convencional, em rotação com a cultura da soja. 650 $aDoença 650 $aMilho 650 $aPlantio Direto 650 $aRotação de Cultura 650 $aSoja 650 $aSolo 653 $aQuantificacao 700 1 $aMENTE, E. M. 700 1 $aMENTEN, J. O. M. 700 1 $aFANCELLI, A. L. 773 $tRevista de Agricultura, Piracicaba$gv. 66, n. 2, p. 149-156, 1991.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
28/12/2010 |
Data da última atualização: |
18/08/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MARICHAL, R.; MARTINEZ, A. F; PRAXEDES, C.; RUIZ, D.; CARVAJAL, A. F.; OSWALD, J.; HURTADO, M. Del P.; BROWN, G. G.; GRIMALDI, M.; DESJARDINS, T.; SARRAZIN, M.; DECAËNS, T.; VELASQUEZ, H.; LAVELLE, P. |
Afiliação: |
RAPHAEL MARICHAL, Université Pierre et Marie Curie/IRD; ALEXANDER FEIJOO MARTINEZ, Universidad Tecnológica de Pereira, Colômbia; CATARINA PRAXEDES, Museu Paraense Emilio Goeldi; DARIO RUIZ, Université Pierre et Marie Curie/IRD; ANDRÉS F. CARVAJAL, Université Pier; JOHAN OSWALD, Université de Rennes, France; MARIA DEL PILAR HURTADO, CIAT, Colombia; GEORGE GARDNER BROWN, CNPF; MICHEL GRIMALDI, Centre IRD Ile, France; THIERRY DESJARDINS, Centre IRD Ile, France; MAX SARRAZIN, Centre IRD Ile, France; THIBAUD DECAËNS, Université de Rouen, France; HELENA VELASQUEZ, Universidade de Colombia; PATRICK LAVELLE, Centre IRD Ile, France. |
Título: |
Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Applied Soil Ecology, v. 46, p. 443-449, 2010. |
Idioma: |
Inglês |
Conteúdo: |
Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other species did not. Our results thus suggest that this invasive species, unlike native species, is able to feed and develop in environments where litter resources are decreased while soils have been enriched in C and nutrients by deforestation and burning. We discuss the reasons why some primary forests in Central America have large populations of P. corethrurus. MenosPontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other spec... Mostrar Tudo |
Thesagro: |
Minhoca. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02674naa a2200289 a 4500 001 1871063 005 2015-08-18 008 2010 bl uuuu u00u1 u #d 100 1 $aMARICHAL, R. 245 $aInvasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc.$h[electronic resource] 260 $c2010 520 $aPontoscolex corethrurus (Glossoscolecidae, Oligochaeta) is an invasive endogeic earthworm that has colonized most land transformed by human activities in the humid tropics. When installed, populations can change soil physical properties, biogeochemical processes and microbial communities. The aim of this study was to determine whether P. corethrurus establishment is a result of (1) a competitive exclusion of native earthworm species or (2) the exploitation of a new niche created by anthropogenic disturbance that native earthworm species cannot use. We tested these hypotheses by doing a survey of earthworm communities in 270 sites that represented the diversity of land use systems encountered in two contrasted regions of the Amazonian arc of deforestation located in Brazil and Colombia respectively. When present in forests, P. corethrurus had no negative effect on the native species communities that had similar (epigeic species) or even higher densities (endogeic species) in the presence of the invasive species. These results suggest the absence of competitive exclusion. The first two axes of a PCA multivariate analysis of communities represented the densities of native species (axis 1) and P. corethrurus (axis 2) respectively. This suggests that respective densities of the two groups respond to different conditions and that their variations are independent. The density of P. corethrurus co-varied with soil N content and pH in Colombian sites while the densities of other species did not. Our results thus suggest that this invasive species, unlike native species, is able to feed and develop in environments where litter resources are decreased while soils have been enriched in C and nutrients by deforestation and burning. We discuss the reasons why some primary forests in Central America have large populations of P. corethrurus. 650 $aMinhoca 700 1 $aMARTINEZ, A. F 700 1 $aPRAXEDES, C. 700 1 $aRUIZ, D. 700 1 $aCARVAJAL, A. F. 700 1 $aOSWALD, J. 700 1 $aHURTADO, M. Del P. 700 1 $aBROWN, G. G. 700 1 $aGRIMALDI, M. 700 1 $aDESJARDINS, T. 700 1 $aSARRAZIN, M. 700 1 $aDECAËNS, T. 700 1 $aVELASQUEZ, H. 700 1 $aLAVELLE, P. 773 $tApplied Soil Ecology$gv. 46, p. 443-449, 2010.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Florestas (CNPF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|