The fifteen clay samples separated from the four major soil groups of Tamil Nadu. the black, red, alluvial and laterite soils were subjected to dehydration ana- lysis. The ratio of adsorbed water to crystal-lattice water obtained from dehydra- tion data served as a reliable indicator for characterization of the soil group. Besides. certain categories of water from dehydration data were found to be significantly related to cation exchange capacity of soil clays, so much so characterization of soil clay and groups from dehydration data could form a most reliable basis.
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Madras
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Tamil Nadu Agricultural University
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Tamil Nadu, India.
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Madras Agricultural Journal (MAJ)
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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