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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Amazônia Ocidental; Embrapa Pantanal. |
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Data corrente: |
27/06/1995 |
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Data da última atualização: |
07/08/1995 |
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Autoria: |
RHODES, E. R.; LINDSAY, W. L. |
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Título: |
Solubility of aluminium in soils of the humid tropics. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Journal of Soil Science, v.29, p.324-330, 1978. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Soil; Samples obtained from genetic horizons of an upland and acid sulphate soil of Sierra Leone, were equilibrated with 0.01 M CaCl2 using a 1:2 to solution ratio. Al activity was estimated from total Al measured in the equilibrium extract, by accounting for hydrolysis and the formation of other complex species. The Al activity was pH-dependent, but the Al(OH)3 ion product was fairly constant throughout the upland soil profile; Al activity was near that expected for equilibrium with kaolinite and quartz. In the acid sulphate soil alunite appeared to control the activity of Al. |
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Palavras-Chave: |
Acid sulphate; Solubility of aluminium; Solucao de aluminio; Tropico umido. |
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Thesagro: |
Alumínio; Fertilidade; Matéria Orgânica; Solo; Sulfato de Sódio. |
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Thesaurus Nal: |
humid tropics; Sierra Leone; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01300naa a2200277 a 4500
001 1785333
005 1995-08-07
008 1978 bl --- 0-- u #d
100 1 $aRHODES, E. R.
245 $aSolubility of aluminium in soils of the humid tropics.
260 $c1978
520 $aSoil; Samples obtained from genetic horizons of an upland and acid sulphate soil of Sierra Leone, were equilibrated with 0.01 M CaCl2 using a 1:2 to solution ratio. Al activity was estimated from total Al measured in the equilibrium extract, by accounting for hydrolysis and the formation of other complex species. The Al activity was pH-dependent, but the Al(OH)3 ion product was fairly constant throughout the upland soil profile; Al activity was near that expected for equilibrium with kaolinite and quartz. In the acid sulphate soil alunite appeared to control the activity of Al.
650 $ahumid tropics
650 $aSierra Leone
650 $asoil
650 $aAlumínio
650 $aFertilidade
650 $aMatéria Orgânica
650 $aSolo
650 $aSulfato de Sódio
653 $aAcid sulphate
653 $aSolubility of aluminium
653 $aSolucao de aluminio
653 $aTropico umido
700 1 $aLINDSAY, W. L.
773 $tJournal of Soil Science$gv.29, p.324-330, 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
