Effects of decalcification on the phosphate sorption characteristics of eight calcareous soils

Autor:	M. Chater, G. E. G. Mattingly, I. C. R. Holford
Rok vydání:	1990
Předmět:	Calcite Langmuir Chemistry Soil Science Sorption Soil science Environmental Science (miscellaneous) Phosphate complex mixtures Rendzina chemistry.chemical_compound Environmental chemistry Soil water Freundlich equation Saturation (chemistry) Earth-Surface Processes
Zdroj:	Soil Research. 28:919
ISSN:	1838-675X
DOI:	10.1071/sr9900919
Popis:	Phosphate sorption isotherms and parameter values were determined on eight calcareous soils which were carefully decalcified using a procedure which minimized changes in cation saturation. Calcite content of the original soils varied from 0.8 to 24 2% and calcite surface areas from 4 . 0 to 8.5 m2 g-1. Sorption parameters were derived from the Langmuir 'two-surface' equation. Decalcification increased phosphate sorption at low residual P concentrations (
Databáze:	OpenAIRE
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