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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
31/10/2008 |
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Data da última atualização: |
26/11/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GOMES JÚNIOR, F. de A.; COELHO FILHO, M. A.; SILVA, T. S. M. da; COELHO, E. F.; OLIVEIRA, V. V. M. de. |
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Afiliação: |
Francisco de Assis Gomes Júnior, UFRB; Maurício Antônio Coelho Filho, CNPMF; Tibério Santos Martins da Silva, CNPMF; Eugênio Ferreira Coelho, CNPMF; Victor Vinícius Machado de Oliveira, UFRB. |
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Título: |
Crescimento e evapotranspiração da cultura da mandioca solteira e consorciada em condições irrigadas. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA TROPICAL, 2., 2008, Cruz das Almas. Anais... Cruz das Almas: Embrapa Mandioca e Fruticultura Tropical, 2008. |
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Idioma: |
Português |
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Notas: |
RESUMO_0463. |
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Conteúdo: |
O presente trabalho apresenta resultados de pesquisas realizadas na Embrapa Mandioca e Fruticultura Tropical, Cruz das Almas - BA, envolvendo a cultura da mandioca irrigada por aspersão convencional. Durante os anos de 2006 e 2007, foram plantadas duas áreas experimentais com a cultura (?Salangor preta?), sendo avaliados dois arranjos de espaçamentos (fileira simples e fileira dupla) para cultura consorciada com feijão caupi e solteira. Em outra parcela, foi plantado o feijão solteiro para comparação com a parcela consorciada. Foi observado que a mandioca não foi afetada pelo consórcio, com crescimento máximo em área foliar entre 150 e 200 dias após o plantio (DAP). Para o feijão, verificou-se redução de 60% da produtividade potencial no plantio consorciado com mandioca espaçada em 1,0 x 0,6 m. Considerando todos os plantios, a produtividade da mandioca atingiu o patamar de 35 t/ha entre 200 DAP e 240 DAP, superando 40 t/ha em dois tratamentos. A evapotranspiração do consórcio foi dependente das superfícies foliares das duas culturas, elevando-se acentuadamente com o plantio do feijão e reduzindo-se com a colheita do mesmo. As máximas demandas ficaram entre 90 e 140 DAP, quando houve tendência de redução. Os Kcs variaram de 0,22 a 1,15 sendo o Kc inicial de 0,27, o Kc médio de 1,08 e o Kc final de 0,5. |
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Palavras-Chave: |
Coeficiente de cultura; Manejo da irrigação. |
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Thesagro: |
Manihot Esculenta; Produção. |
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Categoria do assunto: |
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Marc: |
LEADER 02190naa a2200229 a 4500
001 1655115
005 2008-11-26
008 2008 bl uuuu u00u1 u #d
100 1 $aGOMES JÚNIOR, F. de A.
245 $aCrescimento e evapotranspiração da cultura da mandioca solteira e consorciada em condições irrigadas.
260 $c2008
500 $aRESUMO_0463.
520 $aO presente trabalho apresenta resultados de pesquisas realizadas na Embrapa Mandioca e Fruticultura Tropical, Cruz das Almas - BA, envolvendo a cultura da mandioca irrigada por aspersão convencional. Durante os anos de 2006 e 2007, foram plantadas duas áreas experimentais com a cultura (?Salangor preta?), sendo avaliados dois arranjos de espaçamentos (fileira simples e fileira dupla) para cultura consorciada com feijão caupi e solteira. Em outra parcela, foi plantado o feijão solteiro para comparação com a parcela consorciada. Foi observado que a mandioca não foi afetada pelo consórcio, com crescimento máximo em área foliar entre 150 e 200 dias após o plantio (DAP). Para o feijão, verificou-se redução de 60% da produtividade potencial no plantio consorciado com mandioca espaçada em 1,0 x 0,6 m. Considerando todos os plantios, a produtividade da mandioca atingiu o patamar de 35 t/ha entre 200 DAP e 240 DAP, superando 40 t/ha em dois tratamentos. A evapotranspiração do consórcio foi dependente das superfícies foliares das duas culturas, elevando-se acentuadamente com o plantio do feijão e reduzindo-se com a colheita do mesmo. As máximas demandas ficaram entre 90 e 140 DAP, quando houve tendência de redução. Os Kcs variaram de 0,22 a 1,15 sendo o Kc inicial de 0,27, o Kc médio de 1,08 e o Kc final de 0,5.
650 $aManihot Esculenta
650 $aProdução
653 $aCoeficiente de cultura
653 $aManejo da irrigação
700 1 $aCOELHO FILHO, M. A.
700 1 $aSILVA, T. S. M. da
700 1 $aCOELHO, E. F.
700 1 $aOLIVEIRA, V. V. M. de
773 $tIn: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA TROPICAL, 2., 2008, Cruz das Almas. Anais... Cruz das Almas: Embrapa Mandioca e Fruticultura Tropical, 2008.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
19/02/2019 |
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Data da última atualização: |
19/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
COUTINHO, R. R.; FALEIRO, V. de O.; FARIAS NETO, A. L. de; MENEGUCI, J. L. P.; FREITAS, L. G. |
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Afiliação: |
R. R. COUTINHO, UFV, VICOSA, MG; VALERIA DE OLIVEIRA FALEIRO, CPAMT; AUSTECLINIO LOPES DE FARIAS NETO, CPAMT; JOAO LUIZ PALMA MENEGUCI, CPAMT; L. G. FREITAS, UFV, VICOSA, MG. |
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Título: |
Nematode communities as biological indicators of disturbance in agricultural systems. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Nematropica, v. 48, n. 2, p. 186-197, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
The native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and bacterivores were reduced after the implantation. A greater number of representative genera of predatory nematodes were observed in the sampling carried out in the second year of implantation of the systems. Omnivores were slightly reduced under the influence of the Crop-Livestock (CL), the three iCLF systems, and the native forest area. The largest Shannon-Weaver?s diversity index and evenness were found in the Livestock-Forest (LF), the three iCLF systems, and the spontaneous vegetation area. The iCLF systems were the only systems in the second sampling that increased all diversity indexes, evenness and richness, unlike the Crop (C) system and the CL system. A lower MI value was found in the C system. The greatest MI values were observed in the CL, the three iCLF systems, and the spontaneous vegetation area. The maturity indices (MI and MI2-5), modified maturity index (MMI), and plant parasite index (PPI) indexes indicated that the spontaneous vegetation and native forest areas were reference areas with stable environments. In short, diversity measures and other indexes showed that the LF and iCLF systems generated less disturbance to the environment whereas the C system caused major disturbances. MenosThe native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and ba... Mostrar Tudo |
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Thesagro: |
Nematóide. |
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Thesaurus NAL: |
Disturbed soils. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193005/1/2018-cpamt-valeria-faleiro-nematoide-biological-indicators-distrubance-agricultural-systems.pdf
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Marc: |
LEADER 03291naa a2200193 a 4500
001 2106220
005 2019-02-19
008 2018 bl uuuu u00u1 u #d
100 1 $aCOUTINHO, R. R.
245 $aNematode communities as biological indicators of disturbance in agricultural systems.$h[electronic resource]
260 $c2018
520 $aThe native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and bacterivores were reduced after the implantation. A greater number of representative genera of predatory nematodes were observed in the sampling carried out in the second year of implantation of the systems. Omnivores were slightly reduced under the influence of the Crop-Livestock (CL), the three iCLF systems, and the native forest area. The largest Shannon-Weaver?s diversity index and evenness were found in the Livestock-Forest (LF), the three iCLF systems, and the spontaneous vegetation area. The iCLF systems were the only systems in the second sampling that increased all diversity indexes, evenness and richness, unlike the Crop (C) system and the CL system. A lower MI value was found in the C system. The greatest MI values were observed in the CL, the three iCLF systems, and the spontaneous vegetation area. The maturity indices (MI and MI2-5), modified maturity index (MMI), and plant parasite index (PPI) indexes indicated that the spontaneous vegetation and native forest areas were reference areas with stable environments. In short, diversity measures and other indexes showed that the LF and iCLF systems generated less disturbance to the environment whereas the C system caused major disturbances.
650 $aDisturbed soils
650 $aNematóide
700 1 $aFALEIRO, V. de O.
700 1 $aFARIAS NETO, A. L. de
700 1 $aMENEGUCI, J. L. P.
700 1 $aFREITAS, L. G.
773 $tNematropica$gv. 48, n. 2, p. 186-197, 2018.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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