| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Meio Norte / UEP-Parnaíba. |
|
Data corrente: |
27/06/1995 |
|
Data da última atualização: |
27/06/1995 |
|
Autoria: |
BOLAN, N. S.; SYERS, J. K.; TILLMAN, R. W.; SCOTTER, D. R. |
|
Título: |
Effect of liming and phosphate additions on sulphate leaching in soils. |
|
Ano de publicação: |
1988 |
|
Fonte/Imprenta: |
J. Soil Sci., v.39, p.493-504, 1988. |
|
Idioma: |
Inglês
Português |
|
Conteúdo: |
The effect of lime (CaCO3) and phosphate additions on surface charge characteristics and their effect on the leaching of sulphate were examined for two soils (Patua loam and Tokomaru silt loam) which differed in their adsorption capacities for sulphate. Incubation of soils with either CaCO3 (0-600 mmol kg-1) or phosphate (0-208 mmol kg-1) resulted in a two- to five-fold increase in the net negative charge and a similar decrease in the adsorption of sulphate. The effect of either lime or phosphate addition on both the surface charge and sulphate adsorption was more pronounced for the allophanic Patua soil than for the Tokomaru soil containing mainly vermiculite. In a column experiment, liming induced the leaching of sulphur either by the desorption of adsorbed sulphate or by the mineralization of organic sulphur. During a miscible displacement study, addition of either CaCO3 or phosphate resulted in an early breakthrough of sulphate in the leachate. In a pulse experiment, in which soils were incubated with sulphate (3.12 mmol kg-1) for 1 week and subsequently leached with water, more added sulphate was lost in the leachate of the soils previously incubated with either CaCO3 or phosphate. |
|
Palavras-Chave: |
Addition; Adicao; Phosphate. |
|
Thesagro: |
Calagem; Enxofre; Fosfato; Fósforo; Lixiviação; Solo. |
|
Thesaurus Nal: |
leaching; soil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01893naa a2200289 a 4500
001 1613256
005 1995-06-27
008 1988 bl --- 0-- u #d
100 1 $aBOLAN, N. S.
245 $aEffect of liming and phosphate additions on sulphate leaching in soils.
260 $c1988
520 $aThe effect of lime (CaCO3) and phosphate additions on surface charge characteristics and their effect on the leaching of sulphate were examined for two soils (Patua loam and Tokomaru silt loam) which differed in their adsorption capacities for sulphate. Incubation of soils with either CaCO3 (0-600 mmol kg-1) or phosphate (0-208 mmol kg-1) resulted in a two- to five-fold increase in the net negative charge and a similar decrease in the adsorption of sulphate. The effect of either lime or phosphate addition on both the surface charge and sulphate adsorption was more pronounced for the allophanic Patua soil than for the Tokomaru soil containing mainly vermiculite. In a column experiment, liming induced the leaching of sulphur either by the desorption of adsorbed sulphate or by the mineralization of organic sulphur. During a miscible displacement study, addition of either CaCO3 or phosphate resulted in an early breakthrough of sulphate in the leachate. In a pulse experiment, in which soils were incubated with sulphate (3.12 mmol kg-1) for 1 week and subsequently leached with water, more added sulphate was lost in the leachate of the soils previously incubated with either CaCO3 or phosphate.
650 $aleaching
650 $asoil
650 $aCalagem
650 $aEnxofre
650 $aFosfato
650 $aFósforo
650 $aLixiviação
650 $aSolo
653 $aAddition
653 $aAdicao
653 $aPhosphate
700 1 $aSYERS, J. K.
700 1 $aTILLMAN, R. W.
700 1 $aSCOTTER, D. R.
773 $tJ. Soil Sci.$gv.39, p.493-504, 1988.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 1 | |
| 1. |  | MACHADO, P. L. O. de A.; BENITES, V. de M.; BOLAN, N. Liming acidic soils. In: FAO. Recarbonizing global soils: a technical manual of recommended management practices: cropland, grassland, integrated systems and farming approaches. Rome, 2021. v. 3, cap. 21, p. 273-287.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Solos. |
|    |
| Registros recuperados : 1 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
