Mobilization of X‐ray amorphous and crystalline aluminum and iron phosphates by common soil extraction procedures

Mobilization of X‐ray amorphous and crystalline aluminum and iron phosphates by common soil extraction procedures

Soil extraction with 0.1 M NaOH completely dissolves X‐ray amorphous as well as crystalline AlPO4 and FePO4. Extraction with acidic NH4 oxalate completely mobilizes X‐ray amorphous AlPO4 and FePO4 in addition to phosphate adsorbed to poorly‐crystallized Al and Fe minerals, but only a minor portion o...

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Veröffentlicht in:Journal of plant nutrition and soil science 2017-02, Vol.180 (1), p.14-17
1. Verfasser: Prietzel, Jörg
Format: Artikel
Sprache:eng
Schlagworte:
amorphous AlPO4
amorphous FePO4
crystalline AlPO4
crystalline FePO4
Extraction processes
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Zusammenfassung:Soil extraction with 0.1 M NaOH completely dissolves X‐ray amorphous as well as crystalline AlPO4 and FePO4. Extraction with acidic NH4 oxalate completely mobilizes X‐ray amorphous AlPO4 and FePO4 in addition to phosphate adsorbed to poorly‐crystallized Al and Fe minerals, but only a minor portion of crystalline AlPO4 and FePO4. Extraction with dithionite‐citrate‐bicarbonate mobilizes X‐ray amorphous AlPO4 and FePO4 as well as crystalline FePO4, but only a minor portion of crystalline AlPO4.
ISSN:1436-8730
1522-2624
DOI:10.1002/jpln.201600374