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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: |
14/06/2012 |
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Data da última atualização: |
10/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COMTE, I.; DAVIDSON, R.; LUCOTTE, M.; CARVALHO, C. J. R. de; OLIVEIRA, F. de A.; SILVA, B. P. da; ROUSSEAU, G. X. |
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Afiliação: |
IRINA COMTE, GEOTOP; ROBERT DAVIDSON, UNIVERSITÉ DU QUÉBEC; MARC LUCOTTE, GEOTOP; CLAUDIO JOSE REIS DE CARVALHO, CPATU; FRANCISCO DE ASSIS OLIVEIRA, UFRA; BRENO PANTOJA DA SILVA, UEPA; GUILLAUME X. ROUSSEAU, UEMA. |
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Título: |
Physicochemical properties of soils in the Brazilian Amazon following fire-free land preparation and slash-and-burn practices. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 156, p. 108-115, Aug. 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Over a century, subsistence agriculture has been practiced in the Brazilian Amazon, using slash-and-burn as a traditional land clearing technique. However, fire clearing leads to nutrient losses, and the increasing demographic pressure reduces the duration of the fallow period, threatening the system sustainability. The chop-and-mulch land clearing method, combined or not with legume-enriched fallow, is a promising alternative technique as the retention of organic residues upon land clearance of fallow could promote soil fertility. The aim of this study is to assess the effect of fire-free land preparation on soil physicochemical properties by comparing the effects of traditional slash-and-burn with (i) chop-and mulch with enriched fallow in croplands and (ii) chop-and-mulch without enriched fallow in pastures. The chop-and-mulch of a legume-enriched fallow conserved soil bulk density, and significantly increased nutrient concentrations and organic matter content compared to the burnt cropland and the control forest. In the pastures, the use of chop-and-mulch of a non-enriched fallow had less impact on soil physical and chemical properties, excepted on water retention capacity and total P stock. Land clearing of fallows by chop-and-mulch, especially when enriched with legumes could significantly improve agriculture sustainability in the region and reduce the pressure on primary forests. |
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Palavras-Chave: |
Queima-e-corte. |
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Thesagro: |
Agricultura de Subsistência; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02140naa a2200229 a 4500
001 1926517
005 2022-11-10
008 2012 bl uuuu u00u1 u #d
100 1 $aCOMTE, I.
245 $aPhysicochemical properties of soils in the Brazilian Amazon following fire-free land preparation and slash-and-burn practices.$h[electronic resource]
260 $c2012
520 $aOver a century, subsistence agriculture has been practiced in the Brazilian Amazon, using slash-and-burn as a traditional land clearing technique. However, fire clearing leads to nutrient losses, and the increasing demographic pressure reduces the duration of the fallow period, threatening the system sustainability. The chop-and-mulch land clearing method, combined or not with legume-enriched fallow, is a promising alternative technique as the retention of organic residues upon land clearance of fallow could promote soil fertility. The aim of this study is to assess the effect of fire-free land preparation on soil physicochemical properties by comparing the effects of traditional slash-and-burn with (i) chop-and mulch with enriched fallow in croplands and (ii) chop-and-mulch without enriched fallow in pastures. The chop-and-mulch of a legume-enriched fallow conserved soil bulk density, and significantly increased nutrient concentrations and organic matter content compared to the burnt cropland and the control forest. In the pastures, the use of chop-and-mulch of a non-enriched fallow had less impact on soil physical and chemical properties, excepted on water retention capacity and total P stock. Land clearing of fallows by chop-and-mulch, especially when enriched with legumes could significantly improve agriculture sustainability in the region and reduce the pressure on primary forests.
650 $aAgricultura de Subsistência
650 $aSolo
653 $aQueima-e-corte
700 1 $aDAVIDSON, R.
700 1 $aLUCOTTE, M.
700 1 $aCARVALHO, C. J. R. de
700 1 $aOLIVEIRA, F. de A.
700 1 $aSILVA, B. P. da
700 1 $aROUSSEAU, G. X.
773 $tAgriculture, Ecosystems and Environment$gv. 156, p. 108-115, Aug. 2012.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
19/02/2014 |
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Data da última atualização: |
20/02/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ROSA, F. K. da; CARLI, R. de; HAMMES, J.; OLIVEIRA, A. C. B. de; ROSA, A. P. S. A. da; EMYGDIO, B. M. |
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Afiliação: |
Fabiane Kletke da Rosa, UFPEL; Rogério De Carli, UFPEL; Jonas Hammes, UFPEL; ANA CLAUDIA BARNECHE DE OLIVEIRA, CPACT; ANA PAULA SCHNEID AFONSO DA ROSA, CPACT; BEATRIZ MARTI EMYGDIO, CPACT. |
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Título: |
Avaliação de linhagens de soja em área de rotação com a cultura do arroz irrigado- Capão do Leão/RS. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 7., 2013, Uberlândia. Variedade melhorada: a força da nossa agricultura: anais. Viçosa, MG: SBMP, 2013. p. 845-847. |
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Idioma: |
Português |
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Thesagro: |
Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/97794/1/Ana-caroline-MELHORAMENTO-p-263.pdf
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Marc: |
LEADER 00677nam a2200169 a 4500
001 1980593
005 2014-02-20
008 2013 bl uuuu u00u1 u #d
100 1 $aROSA, F. K. da
245 $aAvaliação de linhagens de soja em área de rotação com a cultura do arroz irrigado- Capão do Leão/RS.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 7., 2013, Uberlândia. Variedade melhorada: a força da nossa agricultura: anais. Viçosa, MG: SBMP, 2013. p. 845-847.$c2013
650 $aSoja
700 1 $aCARLI, R. de
700 1 $aHAMMES, J.
700 1 $aOLIVEIRA, A. C. B. de
700 1 $aROSA, A. P. S. A. da
700 1 $aEMYGDIO, B. M.
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