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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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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
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Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
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Data corrente: |
26/11/2015 |
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Data da última atualização: |
16/11/2017 |
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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: |
CANIZELLA, B. T.; MOREIRA, A.; MORAES, L. A. C.; FAGERIA, N. K. |
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Afiliação: |
UEL; ADONIS MOREIRA, CNPSO; LARISSA ALEXANDRA CARDOSO MORAES, CNPSO; NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Efficiency of magnesium use by common bean varieties regarding yield, physiological components, and nutritional status of plants. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 46, p. 1376-1390, 2015. |
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DOI: |
10.1080/00103624.2015.1043452 |
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Idioma: |
Inglês |
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Conteúdo: |
The magnesium (Mg) use efficiency in the selection of common bean (Phaseolus vulgaris L.) varieties may contribute to increased nutritional status and grain yield. Therefore, the present study aimed to assess common bean varieties following the application of Mg regarding productivity (yield), soil fertility, physiological components, and nutritional status. The experiment was conducted in a completely randomized design in a 5 × 2 factorial scheme with three replicates. Five common bean varieties [BRS Estilo, IPR Tangará, IPR Campos Gerais (CG), IAPAR 81, and BRS Ametista] supplemented with two Mg concentrations [low (0 mg kg−1) and high (100 mg kg−1)] using magnesium chloride (MgCl2) as a source in an Ustoxix Quatzipsamment were assessed. The yield of shoot dry weight (SDW) and grains varied significantly between varieties and Mg rates. The high Mg concentration has negatively affected the yield of SDW and grains of variety IPR Tangará, and the opposite was observed for the other varieties. The physiological components associated with photosynthesis are directly related to the yield of SDW and grains. The concentrations of phosphorus (P), calcium (Ca), sulfur (S), and boron (B) in leaves and of S, B, iron (Fe), and manganese (Mn) in grains differed among the varieties and interactions of rates and varieties for B, indicating the presence of genetic factors in nutrient uptake. |
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Thesagro: |
Estado nutricional; Feijão; Magnésio; Nutrição vegetal; Phaseolus vulgaris. |
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Thesaurus NAL: |
Beans; Grain yield; Magnesium; Nutritional status; Plant nutrition; Yield components. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02344naa a2200301 a 4500
001 2079369
005 2017-11-16
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2015.1043452$2DOI
100 1 $aCANIZELLA, B. T.
245 $aEfficiency of magnesium use by common bean varieties regarding yield, physiological components, and nutritional status of plants.$h[electronic resource]
260 $c2015
520 $aThe magnesium (Mg) use efficiency in the selection of common bean (Phaseolus vulgaris L.) varieties may contribute to increased nutritional status and grain yield. Therefore, the present study aimed to assess common bean varieties following the application of Mg regarding productivity (yield), soil fertility, physiological components, and nutritional status. The experiment was conducted in a completely randomized design in a 5 × 2 factorial scheme with three replicates. Five common bean varieties [BRS Estilo, IPR Tangará, IPR Campos Gerais (CG), IAPAR 81, and BRS Ametista] supplemented with two Mg concentrations [low (0 mg kg−1) and high (100 mg kg−1)] using magnesium chloride (MgCl2) as a source in an Ustoxix Quatzipsamment were assessed. The yield of shoot dry weight (SDW) and grains varied significantly between varieties and Mg rates. The high Mg concentration has negatively affected the yield of SDW and grains of variety IPR Tangará, and the opposite was observed for the other varieties. The physiological components associated with photosynthesis are directly related to the yield of SDW and grains. The concentrations of phosphorus (P), calcium (Ca), sulfur (S), and boron (B) in leaves and of S, B, iron (Fe), and manganese (Mn) in grains differed among the varieties and interactions of rates and varieties for B, indicating the presence of genetic factors in nutrient uptake.
650 $aBeans
650 $aGrain yield
650 $aMagnesium
650 $aNutritional status
650 $aPlant nutrition
650 $aYield components
650 $aEstado nutricional
650 $aFeijão
650 $aMagnésio
650 $aNutrição vegetal
650 $aPhaseolus vulgaris
700 1 $aMOREIRA, A.
700 1 $aMORAES, L. A. C.
700 1 $aFAGERIA, N. K.
773 $tCommunications in Soil Science and Plant Analysis$gv. 46, p. 1376-1390, 2015.
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Registro original: |
Embrapa Soja (CNPSO) |
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