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Aluminium speciation and pH of an acid soil in the presence of fluoride
Author(s) -
MOORE C. S.,
RITCHIE G. S. P.
Publication year - 1988
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1988.tb01188.x
Subject(s) - genetic algorithm , fluoride , chemistry , aluminium , soil ph , soil water , environmental chemistry , inorganic chemistry , nuclear chemistry , soil science , geology , biology , organic chemistry , ecology
SUMMARY The aim was to determine whether the addition of F to an acid soil reduces the concentration of free Al 3+ and other forms that have been shown to be toxic to plants. The ability of two different extracts to reflect Al speciation in the soil solution was also investigated. Addition of F (0‐5.2μmolg −1 ) to an acid soil (pH 4.15, soil solution) increased the pH and total concentrations of Al and F in the soil solution whereas Al 3+ remained constant or decreased. Soil solution pH, total soluble Al and Al extracted by 0.01 m CaCl 2 are not good predictors of the likelihood of aluminium toxicity in soils containing soluble fluoride.