Madras Agricultural Journal
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Distribution of Magnesium Fractions in the Nilgiris Soil Profiles. IV. Distribution Pattern in typic Haplumrepts and Fluventic Haplumrepts

Abstract

The Soils of Typic Haplumrepts were least weathered as indicated by higher amounts of mineral Mg and acid-soluble Mg. Organic cycle was active. The group average of top soil and surface soil indicated that unless the released magnesium is injected in the organic cycle it moves down, Existance of immature profiles with the presence of organic cycle was the main feature in the sub-group Fluventic Heplum brepts. The interconversion of one form of Mg to another was seen in these sub groups and the reserve pond of magne sium was enriched from organic sources.

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