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Investigation of cation release of undisturbed soil columns via cation exchange resins


, : Investigation of cation release of undisturbed soil columns via cation exchange resins. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 153(4): 277-278

Undisturbed soil columns were investigated with cation exchange resins. Similar to roots there is an exchange of H+ and cations. The ability for release of cations by molecular diffusion is decreasing with time, so that an asymptotic approximation to a final value occurs. A part of the protons is buffered, for example by aluminium-hydroxides. Samples rich in organic carbon show different graphs for iron and manganese which is probably due to microbial reduction processes.

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