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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 |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
07/03/2005 |
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Data da última atualização: |
09/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - B |
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Autoria: |
ARAUJO FILHO, J. A. de; GADELHA, J. A.; CRISPIM, S. M. A.; SILVA, N. L. da. |
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Afiliação: |
JOÃO AMBRÓSIO DE ARAÚJO FILHO, CNPC; JOSÉ ADALBERTO GADELHA, Universidade Estadual Vale do Acarau (UVA), Sobral, CE; SANDRA MARA ARAUJO CRISPIM, CPAP; NILZEMARY LIMA DA SILVA, CNPC. |
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Título: |
Pastoreio misto em Caatinga manipulada no sertão cearense. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Revista Científica de Produção Animal, v. 4, n. 1/2, p. 9-21, 2002. |
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Idioma: |
Português |
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Conteúdo: |
O experimento foi conduzido com o objetivo de determinar os efeitos da manipulação da vegetação lenhosa da caatinga e do pastoreio múltiplo sobre o ganho de peso de bovinos, caprinos e ovinos machos em crescimento. Os tratamentos principais consistiram de caatinga nativa (testemunha), caatinga sob rebaixamento e caatinga sob raleamento, e os subtratamentos, as combinações de bovinos, caprinos e ovinos, incluindo o pastoreio solteiro por essas espécies de ruminantes. Concluiu-se que, na caatinga, os bovinos devem ser criados em pastoreio solteiro e que o raleamento constitui a melhor técnica de manipulação para esses ruminantes. Já os caprinos devem ser criados em pastoreio solteiro, ou combinado com bovinos, preferencialmente, em áreas de caatinga rebaixada ou raleada. Os ovinos, por seu turno, devem ser criados combinados com caprinos ou em pastoreio solteiro e o raleamento constitui a melhor técnica de manipulação da vegetação da caatinga para esses ruminantes. Os melhores rendimentos de peso vivo animal são obtidos em caatinga raleada sob pastejo de bovinos em crescimento. |
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Palavras-Chave: |
Brasil; Ceará; Pastoreio; Semi-árido. |
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Thesagro: |
Bovino; Caatinga; Caprino; Ganho de Peso; Ovino; Pastagem Nativa; Pastejo Combinado. |
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Thesaurus NAL: |
Brazil; Cattle; Goats; Herding; Mixed grazing; Semiarid zones; Sheep; Weight gain. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28404/1/API-Pastoreio-misto-em-caatinga-manipulada-no-sertao-cearense.pdf
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Marc: |
LEADER 02063naa a2200385 a 4500
001 1530942
005 2021-09-09
008 2002 bl uuuu u00u1 u #d
100 1 $aARAUJO FILHO, J. A. de
245 $aPastoreio misto em Caatinga manipulada no sertão cearense.
260 $c2002
520 $aO experimento foi conduzido com o objetivo de determinar os efeitos da manipulação da vegetação lenhosa da caatinga e do pastoreio múltiplo sobre o ganho de peso de bovinos, caprinos e ovinos machos em crescimento. Os tratamentos principais consistiram de caatinga nativa (testemunha), caatinga sob rebaixamento e caatinga sob raleamento, e os subtratamentos, as combinações de bovinos, caprinos e ovinos, incluindo o pastoreio solteiro por essas espécies de ruminantes. Concluiu-se que, na caatinga, os bovinos devem ser criados em pastoreio solteiro e que o raleamento constitui a melhor técnica de manipulação para esses ruminantes. Já os caprinos devem ser criados em pastoreio solteiro, ou combinado com bovinos, preferencialmente, em áreas de caatinga rebaixada ou raleada. Os ovinos, por seu turno, devem ser criados combinados com caprinos ou em pastoreio solteiro e o raleamento constitui a melhor técnica de manipulação da vegetação da caatinga para esses ruminantes. Os melhores rendimentos de peso vivo animal são obtidos em caatinga raleada sob pastejo de bovinos em crescimento.
650 $aBrazil
650 $aCattle
650 $aGoats
650 $aHerding
650 $aMixed grazing
650 $aSemiarid zones
650 $aSheep
650 $aWeight gain
650 $aBovino
650 $aCaatinga
650 $aCaprino
650 $aGanho de Peso
650 $aOvino
650 $aPastagem Nativa
650 $aPastejo Combinado
653 $aBrasil
653 $aCeará
653 $aPastoreio
653 $aSemi-árido
700 1 $aGADELHA, J. A.
700 1 $aCRISPIM, S. M. A.
700 1 $aSILVA, N. L. da
773 $tRevista Científica de Produção Animal$gv. 4, n. 1/2, p. 9-21, 2002.
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Embrapa Caprinos e Ovinos (CNPC) |
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