| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Tabuleiros Costeiros. |
|
Data corrente: |
14/02/1996 |
|
Data da última atualização: |
19/02/2015 |
|
Autoria: |
CHANG, S. C.; JACKSON, M. L. |
|
Título: |
Soil phosphorus fractions in some representative soils. |
|
Ano de publicação: |
1958 |
|
Fonte/Imprenta: |
Journal of Soil Science, v. 9, p. 109-119, 1958. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The distribution of soil inorganic phosphorus in soils was found to measure the degree of chemical weathering, the chemical weathering sequence being calcium phosphate, aluminium phosphate, iron phosphate, and occluded phosphate. The latter category includes reductant soluble iron phosphate and aluminium-iron phosphate occluded in iron oxides. For example, three horizons of one chernozem profile, a Dark Brown soil, and the calcareous C1 horizon of a Grey-Brown Podzolic soil contained 68-95 per cent. Of their inorganic phosphurus in the form of calcium phosphate, the other forms decreasing exponentially in the sequence. The inorganic phosphurus of two Latosols increased exponentially in the order calcium phosphate(I%), aluminium phosphate (0-3%), iron phosphate (10-13%), and occluded (reductant soluble) phosphate (66-78%). Three samples of podzolized soils contained intermediate, sigmoidal distributions of the four phosphates. |
|
Palavras-Chave: |
Fertilização; Solos. |
|
Thesagro: |
Fósforo; Nutriente. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01424naa a2200181 a 4500
001 2008106
005 2015-02-19
008 1958 bl --- 0-- u #d
100 1 $aCHANG, S. C.
245 $aSoil phosphorus fractions in some representative soils.$h[electronic resource]
260 $c1958
520 $aThe distribution of soil inorganic phosphorus in soils was found to measure the degree of chemical weathering, the chemical weathering sequence being calcium phosphate, aluminium phosphate, iron phosphate, and occluded phosphate. The latter category includes reductant soluble iron phosphate and aluminium-iron phosphate occluded in iron oxides. For example, three horizons of one chernozem profile, a Dark Brown soil, and the calcareous C1 horizon of a Grey-Brown Podzolic soil contained 68-95 per cent. Of their inorganic phosphurus in the form of calcium phosphate, the other forms decreasing exponentially in the sequence. The inorganic phosphurus of two Latosols increased exponentially in the order calcium phosphate(I%), aluminium phosphate (0-3%), iron phosphate (10-13%), and occluded (reductant soluble) phosphate (66-78%). Three samples of podzolized soils contained intermediate, sigmoidal distributions of the four phosphates.
650 $aFósforo
650 $aNutriente
653 $aFertilização
653 $aSolos
700 1 $aJACKSON, M. L.
773 $tJournal of Soil Science$gv. 9, p. 109-119, 1958.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 1 | |
| Registros recuperados : 1 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
