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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
18/12/2009 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DENICH, M.; VLEK, P. L. G.; SA, T. D. de A.; VIELHAUER, K.; LÜCKE, W. |
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Afiliação: |
MANFRED DENICH, University of Bonn; PAUL L. G. VLEK, University of Bonn; TATIANA DEANE DE ABREU SA, CPATU; KONRAD VIELHAUER, University of Bonn; WOLFGANG LÜCKE, University of Göttingen. |
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Título: |
A concept for the development of fire-free fallow management in the Eastern Amazon, Brazil. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 110, n. 1-2, p. 43-58, Oct. 2005. |
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DOI: |
doi:10.1016/j.agee.2005.05.005 |
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Idioma: |
Inglês |
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Conteúdo: |
Research-based improvements in small-farmer land-use systems are difficult to bring about. Often such improvements developed under research station conditions fail to address the true system problems or farmer concerns. In the search for ways to improve the traditional fallow system of the Eastern Amazon, field experiments were conducted in farmers? fields, but under researcher management with farmers helping to identify the critical needs for improvement. To achieve the objective a phased plan was followed: (1) exploratory research, (2) solution-oriented research with technology development and prototype evaluation, and (3) implementation-oriented research. The initial exploratory or diagnostic studies focused on (1) biomass accumulation, (2) nutrient dynamics and (3) fallowregeneration. Itwas found that (1) the live and dead above-ground biomass of 1-10-year-old fallow vegetation amounts to 10?98 Mg ha1, (2) in the nutrient balance of a crop/fallow cycle including slash burning and fertilization nutrient losses exceed inputs forN,K,Ca andMg, but not for P, and (3) vegetative resprouting of trees/shrubs exceeds in importance their regeneration by seeds and mechanized land preparation halves the accumulation of woody biomass of a 2-year-old fallow vegetation, compared to no tillage. Instead of designing an entirely new land-use system, modifications were studied only to those practices andcomponents recognized to be harmful to the sustainability of the traditional systemitself. Also, additional components to further improve the systemwere tested. Thus, various technologies were developed as a set of modules. These include: (1) mulch technology, (2) fire-free land clearing with a newly developed tractor-driven bush chopper to transform fallow vegetation into mulch, (3) enrichment planting with Acacia auriculiformis to accumulate twice as much biomass within 2 years as not managed fallows, (4) modification of the cropping period by doubling it, by shifting the planting date, and by re-arranging the crop sequence, and (5) the test ofmodern low-input crop varieties: rice and cassava cultivarswere identified for themulch-based systemwhich yield higher than locally widespread ones. Adoption of these modules is flexible, leaving the farmer in control of the innovation process. This last phase of implementation-oriented research, currently underway, is participatory and multidisciplinary in nature and seeks to develop and assess implementation strategies aimed at the diffusion of the farming system improvements. MenosResearch-based improvements in small-farmer land-use systems are difficult to bring about. Often such improvements developed under research station conditions fail to address the true system problems or farmer concerns. In the search for ways to improve the traditional fallow system of the Eastern Amazon, field experiments were conducted in farmers? fields, but under researcher management with farmers helping to identify the critical needs for improvement. To achieve the objective a phased plan was followed: (1) exploratory research, (2) solution-oriented research with technology development and prototype evaluation, and (3) implementation-oriented research. The initial exploratory or diagnostic studies focused on (1) biomass accumulation, (2) nutrient dynamics and (3) fallowregeneration. Itwas found that (1) the live and dead above-ground biomass of 1-10-year-old fallow vegetation amounts to 10?98 Mg ha1, (2) in the nutrient balance of a crop/fallow cycle including slash burning and fertilization nutrient losses exceed inputs forN,K,Ca andMg, but not for P, and (3) vegetative resprouting of trees/shrubs exceeds in importance their regeneration by seeds and mechanized land preparation halves the accumulation of woody biomass of a 2-year-old fallow vegetation, compared to no tillage. Instead of designing an entirely new land-use system, modifications were studied only to those practices andcomponents recognized to be harmful to the sustainability of the traditional systemitse... Mostrar Tudo |
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Palavras-Chave: |
Enrichment planting. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03169naa a2200193 a 4500
001 1578441
005 2022-06-08
008 2005 bl uuuu u00u1 u #d
024 7 $adoi:10.1016/j.agee.2005.05.005$2DOI
100 1 $aDENICH, M.
245 $aA concept for the development of fire-free fallow management in the Eastern Amazon, Brazil.$h[electronic resource]
260 $c2005
520 $aResearch-based improvements in small-farmer land-use systems are difficult to bring about. Often such improvements developed under research station conditions fail to address the true system problems or farmer concerns. In the search for ways to improve the traditional fallow system of the Eastern Amazon, field experiments were conducted in farmers? fields, but under researcher management with farmers helping to identify the critical needs for improvement. To achieve the objective a phased plan was followed: (1) exploratory research, (2) solution-oriented research with technology development and prototype evaluation, and (3) implementation-oriented research. The initial exploratory or diagnostic studies focused on (1) biomass accumulation, (2) nutrient dynamics and (3) fallowregeneration. Itwas found that (1) the live and dead above-ground biomass of 1-10-year-old fallow vegetation amounts to 10?98 Mg ha1, (2) in the nutrient balance of a crop/fallow cycle including slash burning and fertilization nutrient losses exceed inputs forN,K,Ca andMg, but not for P, and (3) vegetative resprouting of trees/shrubs exceeds in importance their regeneration by seeds and mechanized land preparation halves the accumulation of woody biomass of a 2-year-old fallow vegetation, compared to no tillage. Instead of designing an entirely new land-use system, modifications were studied only to those practices andcomponents recognized to be harmful to the sustainability of the traditional systemitself. Also, additional components to further improve the systemwere tested. Thus, various technologies were developed as a set of modules. These include: (1) mulch technology, (2) fire-free land clearing with a newly developed tractor-driven bush chopper to transform fallow vegetation into mulch, (3) enrichment planting with Acacia auriculiformis to accumulate twice as much biomass within 2 years as not managed fallows, (4) modification of the cropping period by doubling it, by shifting the planting date, and by re-arranging the crop sequence, and (5) the test ofmodern low-input crop varieties: rice and cassava cultivarswere identified for themulch-based systemwhich yield higher than locally widespread ones. Adoption of these modules is flexible, leaving the farmer in control of the innovation process. This last phase of implementation-oriented research, currently underway, is participatory and multidisciplinary in nature and seeks to develop and assess implementation strategies aimed at the diffusion of the farming system improvements.
653 $aEnrichment planting
700 1 $aVLEK, P. L. G.
700 1 $aSA, T. D. de A.
700 1 $aVIELHAUER, K.
700 1 $aLÜCKE, W.
773 $tAgriculture, Ecosystems and Environment$gv. 110, n. 1-2, p. 43-58, Oct. 2005.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
12/04/2013 |
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Data da última atualização: |
12/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
COMIOTTO, A.; FACHINELLO, J. C.; HOFFMANN, A.; MACHADO, N. P.; GALARÇA, S. P.; BETEMPS, D. L. |
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Afiliação: |
Andressa Comiotto, IFRS/BG; JOSÉ CARLOS FACHINELLO, UFPEL; ALEXANDRE HOFFMANN, CNPUV; Nicácia Portella Machado, UFPEL; Simone Padilha Galarça, UFPEL; Débora Leitzke Betemps, UFPEL. |
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Título: |
Vigor, floração, produção e qualidade de pêssegos 'Chimarrita' e 'Maciel' em função de diferentes porta-enxertos. |
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Complemento do título: |
Vigour, flowering, yield and quality of 'Chimarita' and 'Maciel' for different rootstocks. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ciência Rural, Santa Maria, v. 42, n. 5, p. 788-794, maio 2012. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi avaliar o vigor, a floração, a produção e a qualidade de pêssegos das cultivares 'Chimarrita' e 'Maciel' sobre oito porta-enxertos. O diâmetro do tronco, acompanhamento da floração, produção e qualidade de pêssegos foram os parâmetros estudados nas safras de 2008 e 2009, na Universidade Federal de Pelotas, Pelotas, RS. De acordo com os resultados obtidos, as cultivares 'Chimarrita' e 'Maciel', enxertadas sobre Umezeiro, apresentam menor vigor e sintomas de incompatibilidade quando comparadas com a enxertia nos demais porta-enxertos. A floração de ambas as cultivares foi influenciada pelos portaenxertos, podendo retardar ou antecipar o início e a plena floração em até cinco dias. A cultivar ?Maciel? enxertada sobre Tsukuba 1 foi a mais produtiva e a cultivar 'Chimarrita' apresentou maior produção quando enxertada sobre Aldrighi e Capdeboscq. O porta-enxerto Umezeiro proporcionou frutos com maior relação SS/AT para a cultivar 'Maciel' e, para 'Chimarrita', os pêssegos apresentaram maior conteúdo de sólidos solúveis. |
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Palavras-Chave: |
Crescimento vegetativo; Porta-enxerto. |
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Thesagro: |
Floração; Fruticultura; Pêssego; Produção; Produtividade; Variedade. |
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Thesaurus NAL: |
vigor. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/81349/1/COMIOTTO-CiRural-v42n5p788-2012.pdf
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Marc: |
LEADER 01927naa a2200289 a 4500
001 1955737
005 2019-04-12
008 2012 bl uuuu u00u1 u #d
100 1 $aCOMIOTTO, A.
245 $aVigor, floração, produção e qualidade de pêssegos 'Chimarrita' e 'Maciel' em função de diferentes porta-enxertos.$h[electronic resource]
260 $c2012
520 $aO objetivo deste trabalho foi avaliar o vigor, a floração, a produção e a qualidade de pêssegos das cultivares 'Chimarrita' e 'Maciel' sobre oito porta-enxertos. O diâmetro do tronco, acompanhamento da floração, produção e qualidade de pêssegos foram os parâmetros estudados nas safras de 2008 e 2009, na Universidade Federal de Pelotas, Pelotas, RS. De acordo com os resultados obtidos, as cultivares 'Chimarrita' e 'Maciel', enxertadas sobre Umezeiro, apresentam menor vigor e sintomas de incompatibilidade quando comparadas com a enxertia nos demais porta-enxertos. A floração de ambas as cultivares foi influenciada pelos portaenxertos, podendo retardar ou antecipar o início e a plena floração em até cinco dias. A cultivar ?Maciel? enxertada sobre Tsukuba 1 foi a mais produtiva e a cultivar 'Chimarrita' apresentou maior produção quando enxertada sobre Aldrighi e Capdeboscq. O porta-enxerto Umezeiro proporcionou frutos com maior relação SS/AT para a cultivar 'Maciel' e, para 'Chimarrita', os pêssegos apresentaram maior conteúdo de sólidos solúveis.
650 $avigor
650 $aFloração
650 $aFruticultura
650 $aPêssego
650 $aProdução
650 $aProdutividade
650 $aVariedade
653 $aCrescimento vegetativo
653 $aPorta-enxerto
700 1 $aFACHINELLO, J. C.
700 1 $aHOFFMANN, A.
700 1 $aMACHADO, N. P.
700 1 $aGALARÇA, S. P.
700 1 $aBETEMPS, D. L.
773 $tCiência Rural, Santa Maria$gv. 42, n. 5, p. 788-794, maio 2012.
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Embrapa Uva e Vinho (CNPUV) |
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