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CATION EXCHANGE PROPERTIES OF SPHAGNUM PEAT: EXCHANGE BETWEEN TWO CATIONS AND PROTONS.
Author(s) -
ANDRÉ J. P.,
PIJAROWSKI L.
Publication year - 1977
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.1365-2389.1977.tb02265.x
Subject(s) - peat , divalent , chemistry , cation exchange capacity , selectivity , ion exchange , inorganic chemistry , constant (computer programming) , sphagnum , soil science , soil water , catalysis , geology , ion , organic chemistry , ecology , biology , computer science , programming language
Summary Parameters of the exchange equilibria for three pairs of cations of agricultural interest (K/NH4 – Ca/Mg – K/Ca) were experimentally determined. The selectivity coefficient of the two homovalent pairs was found to be constant, whereas that of the mono‐divalent pair depended on the total concentration of cations in the solution and on the exchange capacity. Equations are given which describe the exchange equilibria in peat, which take into account its pH‐dependent exchange capacity.