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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
10/10/2012 |
Data da última atualização: |
11/10/2012 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PAMPONET, A. J. M.; AMORIM, M. S.; ANDRADE, T. P. de; COELHO, E. F.; SILVA, A. C. P. da. |
Afiliação: |
ARTHUR JOSÉ MENDES PAMPONET, UFRB; MAURICIO SILVA AMORIM, UFRB; TACISIO PEREIRA DE ANDRADE, UNOPAR; EUGENIO FERREIRA COELHO, CNPMF; ANA CARINA PIRES DA SILVA, UFRB. |
Título: |
Produtividade da Bananeira Cv. Prata Anã no terceiro ciclo submetido a diferentes lâminas de irrigação e densidades de plantas. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: CONGRESSO LATINOAMERICANO Y DEL CARIBE DE INGENIERIA AGRICOLA, 10.; CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 41., 2012, Londrina. A engenharia agrícola na evolução dos sistemas de produção: artigos completos. Londrina: SBEA, 2012. 1 CD-ROM. |
Idioma: |
Português |
Conteúdo: |
O objetivo desse trabalho foi avaliar a produtividade da bananeira cv. Prata Anã no terceiro ciclo de produção irrigada por microaspersão, submetida a diferentes níveis de irrigação e densidades de plantas. O experimento foi conduzido na Embrapa Mandioca e Fruticultura, Cruz das Almas-BA. As lâminas aplicadas consistiram no fracionamento (60, 80, 100 e 120%) da evapotranspiração da bananeira e densidades de 2.000 e 4.000 pl ha-1, respectivamente. As lâminas de irrigação não afetaram a produtividade, diferentemente da densidade de plantas, havendo um incremento de 76% no rendimento da lavoura de 4.000 pl ha-1,com as plantas apresentando as mesmas características no período da emissão da inflorescência. Contudo, houve um incremento de 52 dias no ciclo da cultura e saldo de 18 t ha-1, quando a densidade de 4.000 pl ha-1 comparado com a densidade de 2.000 pl ha-1. |
Palavras-Chave: |
Superadensamento. |
Thesagro: |
Banana; Irrigação. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/67842/1/TR-POSTER0716-3-2.pdf
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Marc: |
LEADER 01702nam a2200193 a 4500 001 1936406 005 2012-10-11 008 2012 bl uuuu u00u1 u #d 100 1 $aPAMPONET, A. J. M. 245 $aProdutividade da Bananeira Cv. Prata Anã no terceiro ciclo submetido a diferentes lâminas de irrigação e densidades de plantas. 260 $aIn: CONGRESSO LATINOAMERICANO Y DEL CARIBE DE INGENIERIA AGRICOLA, 10.; CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 41., 2012, Londrina. A engenharia agrícola na evolução dos sistemas de produção: artigos completos. Londrina: SBEA, 2012. 1 CD-ROM.$c2012 520 $aO objetivo desse trabalho foi avaliar a produtividade da bananeira cv. Prata Anã no terceiro ciclo de produção irrigada por microaspersão, submetida a diferentes níveis de irrigação e densidades de plantas. O experimento foi conduzido na Embrapa Mandioca e Fruticultura, Cruz das Almas-BA. As lâminas aplicadas consistiram no fracionamento (60, 80, 100 e 120%) da evapotranspiração da bananeira e densidades de 2.000 e 4.000 pl ha-1, respectivamente. As lâminas de irrigação não afetaram a produtividade, diferentemente da densidade de plantas, havendo um incremento de 76% no rendimento da lavoura de 4.000 pl ha-1,com as plantas apresentando as mesmas características no período da emissão da inflorescência. Contudo, houve um incremento de 52 dias no ciclo da cultura e saldo de 18 t ha-1, quando a densidade de 4.000 pl ha-1 comparado com a densidade de 2.000 pl ha-1. 650 $aBanana 650 $aIrrigação 653 $aSuperadensamento 700 1 $aAMORIM, M. S. 700 1 $aANDRADE, T. P. de 700 1 $aCOELHO, E. F. 700 1 $aSILVA, A. C. P. da
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Embrapa Mandioca e Fruticultura (CNPMF) |
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
26/10/2023 |
Data da última atualização: |
26/10/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
OLIVEIRA, A. D. de; RIBEIRO, F. P.; FIGUEIREDO, C. C. de; MULLER, A. G.; MALAQUIAS, J. V.; SANTOS, I. L. dos; SA, M. A. C. de; SOARES, J. P. G.; SANTOS, M. V. A. dos; CARVALHO, A. M. de. |
Afiliação: |
ALEXSANDRA DUARTE DE OLIVEIRA, CPAC; FABIANA PIONTEKOWSKI RIBEIRO; CÍCERO CÉLIO DE FIGUEIREDO, Universidade de Brasília; ARTUR GUSTAVO MULLER, CPAC; JUACI VITORIA MALAQUIAS, CPAC; ISIS LIMA DOS SANTOS, Universidade de Brasília; MARCOS AURELIO CAROLINO DE SA, CPAC; JOAO PAULO GUIMARAES SOARES, CPAC; MARCOS VINÍCIUS ARAÚJO DOS SANTOS; ARMINDA MOREIRA DE CARVALHO, CPAC. |
Título: |
Effects of soil management, rotation and sequence of crops on soil nitrous oxide emissions in the Cerrado: a multi-factor assessment. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Journal of Environmental Management, v. 348, 119295, 2023. |
DOI: |
https://doi.org/10.1016/j.jenvman.2023.119295 |
Idioma: |
Português |
Conteúdo: |
The emission of nitrous oxide (N2O), one of the main greenhouse gases, which contributes significantly to global warming, is a major challenge in modern agriculture. The effects of land use systems on N2O emissions are the result of multiple variables, whose interactions need to be better understood. In this sense, this study analyzed the possible effects of different soil managements, crop rotations and sequences, as well as edaphoclimatic factors causing N2O emissions from soils in the Cerrado biome (scrubland). The following four land-use systems were evaluated: 1) No-tillage cultivation with biennial crop rotations and sequences: legume-grass and alternating grass-legume crops in the second season - NT-SS/MP; 2) No-tillage with biennial rotations and sequences: grasslegume and alternating second crop of legume-grass - NT-MP/SS; 3) Conventional planting with disc harrow and biennial legume-grass rotation-CT-S/M; and 4) Native Cerrado (CE), no agricultural land use. The legume and grass species, planted in the two no-tillage treatments were soybean, followed by sorghum BRS3.32 (Sorghum bicolor (L.) Moench) (SS), and maize, followed by pigeon pea (Cajanus cajan) (MP). Nitrous oxide emissions were evaluated for 25 months (October 2013 to October 2015), and the results were grouped in annual, total, growing and non-growing seasons, as well as yield-scaled N2O emissions. The mean N2O fluxes were 24.14, 15.71, 32.49 and 1.87 ?g m? 2 h? 1 in the NT-SS/MP, NT-MP/SS, CT-S/M and Cerrado areas respectively. Cumulative N2O fluxes over the total evaluation period from the systems NT-SS/MP, NT-MP/SS, CT-S/M and CE, respectively, were 3.47, 2.29, 4.87 and 0.26 kg ha? 1. A correlation between N2O fluxes and the environmental variables was observed, with the exception of water-filled pore space (WFPS), but N2O peaks were associated with WFPS values of >65%. In the 2014?2015 growing season, yield-scaled N2O emissions from NT-MP/SS were lower than from CT-S/M. A multi-factor approach indicated that conventional management with main season soybean or maize and no alternating crop sequence intensifies soil N2O emissions in the Cerrado. MenosThe emission of nitrous oxide (N2O), one of the main greenhouse gases, which contributes significantly to global warming, is a major challenge in modern agriculture. The effects of land use systems on N2O emissions are the result of multiple variables, whose interactions need to be better understood. In this sense, this study analyzed the possible effects of different soil managements, crop rotations and sequences, as well as edaphoclimatic factors causing N2O emissions from soils in the Cerrado biome (scrubland). The following four land-use systems were evaluated: 1) No-tillage cultivation with biennial crop rotations and sequences: legume-grass and alternating grass-legume crops in the second season - NT-SS/MP; 2) No-tillage with biennial rotations and sequences: grasslegume and alternating second crop of legume-grass - NT-MP/SS; 3) Conventional planting with disc harrow and biennial legume-grass rotation-CT-S/M; and 4) Native Cerrado (CE), no agricultural land use. The legume and grass species, planted in the two no-tillage treatments were soybean, followed by sorghum BRS3.32 (Sorghum bicolor (L.) Moench) (SS), and maize, followed by pigeon pea (Cajanus cajan) (MP). Nitrous oxide emissions were evaluated for 25 months (October 2013 to October 2015), and the results were grouped in annual, total, growing and non-growing seasons, as well as yield-scaled N2O emissions. The mean N2O fluxes were 24.14, 15.71, 32.49 and 1.87 ?g m? 2 h? 1 in the NT-SS/MP, NT-MP/SS, CT-S/M and Ce... Mostrar Tudo |
Palavras-Chave: |
GHGs emissions; Maize; N fertilization; Tillage system. |
Thesaurus NAL: |
Soybeans. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03110naa a2200301 a 4500 001 2157543 005 2023-10-26 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.jenvman.2023.119295$2DOI 100 1 $aOLIVEIRA, A. D. de 245 $aEffects of soil management, rotation and sequence of crops on soil nitrous oxide emissions in the Cerrado$ba multi-factor assessment.$h[electronic resource] 260 $c2023 520 $aThe emission of nitrous oxide (N2O), one of the main greenhouse gases, which contributes significantly to global warming, is a major challenge in modern agriculture. The effects of land use systems on N2O emissions are the result of multiple variables, whose interactions need to be better understood. In this sense, this study analyzed the possible effects of different soil managements, crop rotations and sequences, as well as edaphoclimatic factors causing N2O emissions from soils in the Cerrado biome (scrubland). The following four land-use systems were evaluated: 1) No-tillage cultivation with biennial crop rotations and sequences: legume-grass and alternating grass-legume crops in the second season - NT-SS/MP; 2) No-tillage with biennial rotations and sequences: grasslegume and alternating second crop of legume-grass - NT-MP/SS; 3) Conventional planting with disc harrow and biennial legume-grass rotation-CT-S/M; and 4) Native Cerrado (CE), no agricultural land use. The legume and grass species, planted in the two no-tillage treatments were soybean, followed by sorghum BRS3.32 (Sorghum bicolor (L.) Moench) (SS), and maize, followed by pigeon pea (Cajanus cajan) (MP). Nitrous oxide emissions were evaluated for 25 months (October 2013 to October 2015), and the results were grouped in annual, total, growing and non-growing seasons, as well as yield-scaled N2O emissions. The mean N2O fluxes were 24.14, 15.71, 32.49 and 1.87 ?g m? 2 h? 1 in the NT-SS/MP, NT-MP/SS, CT-S/M and Cerrado areas respectively. Cumulative N2O fluxes over the total evaluation period from the systems NT-SS/MP, NT-MP/SS, CT-S/M and CE, respectively, were 3.47, 2.29, 4.87 and 0.26 kg ha? 1. A correlation between N2O fluxes and the environmental variables was observed, with the exception of water-filled pore space (WFPS), but N2O peaks were associated with WFPS values of >65%. In the 2014?2015 growing season, yield-scaled N2O emissions from NT-MP/SS were lower than from CT-S/M. A multi-factor approach indicated that conventional management with main season soybean or maize and no alternating crop sequence intensifies soil N2O emissions in the Cerrado. 650 $aSoybeans 653 $aGHGs emissions 653 $aMaize 653 $aN fertilization 653 $aTillage system 700 1 $aRIBEIRO, F. P. 700 1 $aFIGUEIREDO, C. C. de 700 1 $aMULLER, A. G. 700 1 $aMALAQUIAS, J. V. 700 1 $aSANTOS, I. L. dos 700 1 $aSA, M. A. C. de 700 1 $aSOARES, J. P. G. 700 1 $aSANTOS, M. V. A. dos 700 1 $aCARVALHO, A. M. de 773 $tJournal of Environmental Management$gv. 348, 119295, 2023.
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