K desorption in an external electric field as related to clay content
Chapter
Summary
The EUF method differs from other soil testing methods in that it not only yields extractable quantities of nutrients but also provides information on the rates with which these quantities are desorbed when an external force is applied. The K desorption can be described by a second-order rate equation. The constants in these equations (maximum desorbable quantity D; halftime t0.5) are characteristic for a given K-soil system.
The K desorption rate depends on clay content and on the buffer power of a soil.
Key words
Buffer power Clay content K desorptionPreview
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Literature
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© Martinus Nijhoff / Dr W. Junk Publishers, The Hague 1982