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Registros recuperados : 68 | |
3. | | LANGE, A.; CARVALHO, J. L. N. de; DAMIN, V.; CRUZ, J. C.; MARQUES, J. J. Alterações em atributos do solo decorrentes da aplicação de nitrogênio e palha em sistema semeadura direta na cultura do milho. Ciencia Rural, Santa Maria, v. 36, n.2, p. 460-467, 2006. Biblioteca(s): Embrapa Milho e Sorgo. |
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14. | | TEIXEIRA, W. G.; MARTINS, G. C.; IWATA, S. A.; REIS, A. R.; MARQUES, J. J.; RODRIGUES, M. do R. L. Caracterização e identificação das principais classes de solos da Província Petrolífera do Rio Urucu, Amazonas. In: WORKSHOP TÉCNICO-CIENTÍFICO DA REDE CT-PETRO AMAZÔNIA, 1., 2004, Manaus. Rede CT-Petro Amazônia. Manaus: INPA: FDB: Petrobrás, 2004. 1 CD-ROM. Biblioteca(s): Embrapa Amazônia Ocidental. |
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16. | | ARAUJO, A. R. de; MARQUES, J. J.; CURI, N.; FERREIRA, M. M.; MELLO, C. R. de; MENEZES, M. D. de. Interpretação do mapa de solos da Bacia do Alto Rio Grande (MG) para estudos hidrológicos. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33.; 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. Uberlândia: SBCS: UFU, ICIAG, 2011. Resumo expandido. Biblioteca(s): Embrapa Gado de Corte. |
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17. | | OLIVEIRA, R. de C.; ARAÚJO, A. R. de; CARVALHO, R.; GUILHERME, L. R. G.; PASSOS, L. P.; MARQUES, J. J. Movimento de zinco em colunas de solo tratado com resíduo calcário oriundo de mineração. Revista Ceres, Viçosa, v. 56, n. 5, p. 679-684, 2009. Biblioteca(s): Embrapa Gado de Leite. |
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18. | | GUILHERME, L. R. G.; MARQUES, J. J.; PIERANGELI, M. A. P.; ZULIANI, D. Q.; CAMPOS, M. L.; MARCHI, G. Elementos-traço em solos e sistemas aquáticos. Tópicos em Ciência do Solo, Viçosa, MG, v. 4, p. 345-390, 2005. Biblioteca(s): Embrapa Semiárido. |
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19. | | LANGE, A.; CARVALHO, J. L. N.; DAMIN, V.; CRUZ, J. C.; GUILHERME, L. R. G.; MARQUES, J. J. Doses de nitrogênio e de palha em sistema plantio direto de milho no cerrado. Revista Ceres, Viçosa, v. 53, n. 306, p. 171-178, 2006. Biblioteca(s): Embrapa Milho e Sorgo. |
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Registros recuperados : 68 | |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Solos. |
Data corrente: |
16/07/2003 |
Data da última atualização: |
19/10/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARQUES, J. J.; TEIXEIRA, W. G.; SCHULZE, D. G.; CURI, N. |
Afiliação: |
Embrapa Amazônia Ocidental.; WENCESLAU GERALDES TEIXEIRA, CPAA. |
Título: |
Mineralogy of soils with unusually high exchangeable Al from the western Amazon region. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Clay Minerals, v. 37, p. 651-661, 2002. |
Idioma: |
Inglês |
Conteúdo: |
Some soils from the western Amazon region contain KCl-extractable Al contents 5 to 10 times greater than is typical for highly weathered soils containing predominantly kaolinite and gibbsite. We studied a soil sequence from the Brazilian western Amazon consisting of two Typic Udifluvents on the levee of the Javari River, one Aeric Endoaquent in the backswamp, and two Typic Hapludults on an adjacent terrace. We used wet chemical and X-ray diffraction (XRD) analysis to characterize several size fractions of the 0 to 0.2 m layer of the soils. The exchangeable Al content was very high in the Aquent and Udults (up to 180 mmolc kg-1), but the 'total' Fe content was low in all samples (<60 g kg-1). Smectite, vermiculite, hydroxy-interlayered smectite and kaolinite dominate the fine silt and clay fractions of all soils. The Fluvents contain illite in all size fractions and chlorite in the coarse clay and fine silt fractions. The Aquent and Udults have no chlorite, and small amounts of illite occur only in the coarse clay and fine silt fractions. Lepidocrocite was identified in the Aquent. Chlorite, which occurs in the sand, fine silt, and coarse clay fractions of the Fluvents, and pyrophyllite, which occurs in the fine silt fractions of all soils and in the coarse clay of the two Ultisols, appears to be inherited from the parent sediments. The hydroxy-interlayered 2:1 phyllosilicates that form as a result of weathering are the cause of the very high exchangeable Al contents. |
Thesagro: |
Alumínio; Mineralogia; Solo. |
Thesaurus NAL: |
Amazonia; Kaolinite; Smectite. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184730/1/S2640.pdf
|
Marc: |
LEADER 02106naa a2200229 a 4500 001 1672293 005 2018-10-19 008 2002 bl uuuu u00u1 u #d 100 1 $aMARQUES, J. J. 245 $aMineralogy of soils with unusually high exchangeable Al from the western Amazon region.$h[electronic resource] 260 $c2002 520 $aSome soils from the western Amazon region contain KCl-extractable Al contents 5 to 10 times greater than is typical for highly weathered soils containing predominantly kaolinite and gibbsite. We studied a soil sequence from the Brazilian western Amazon consisting of two Typic Udifluvents on the levee of the Javari River, one Aeric Endoaquent in the backswamp, and two Typic Hapludults on an adjacent terrace. We used wet chemical and X-ray diffraction (XRD) analysis to characterize several size fractions of the 0 to 0.2 m layer of the soils. The exchangeable Al content was very high in the Aquent and Udults (up to 180 mmolc kg-1), but the 'total' Fe content was low in all samples (<60 g kg-1). Smectite, vermiculite, hydroxy-interlayered smectite and kaolinite dominate the fine silt and clay fractions of all soils. The Fluvents contain illite in all size fractions and chlorite in the coarse clay and fine silt fractions. The Aquent and Udults have no chlorite, and small amounts of illite occur only in the coarse clay and fine silt fractions. Lepidocrocite was identified in the Aquent. Chlorite, which occurs in the sand, fine silt, and coarse clay fractions of the Fluvents, and pyrophyllite, which occurs in the fine silt fractions of all soils and in the coarse clay of the two Ultisols, appears to be inherited from the parent sediments. The hydroxy-interlayered 2:1 phyllosilicates that form as a result of weathering are the cause of the very high exchangeable Al contents. 650 $aAmazonia 650 $aKaolinite 650 $aSmectite 650 $aAlumínio 650 $aMineralogia 650 $aSolo 700 1 $aTEIXEIRA, W. G. 700 1 $aSCHULZE, D. G. 700 1 $aCURI, N. 773 $tClay Minerals$gv. 37, p. 651-661, 2002.
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Embrapa Amazônia Ocidental (CPAA) |
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