New PDF release: A Treatise of Indian and Tropical Soils

By D.K. Pal

ISBN-10: 3319494384

ISBN-13: 9783319494388

ISBN-10: 3319494392

ISBN-13: 9783319494395

This e-book discusses how you can practice the fundamental rules of pedology to the tropical soils of the Indian subcontinent, with an emphasis on how one can improve crop productivity.

The publication showcases the study contributions on pedology, geomorphology, mineralogy, micromorphology and weather swap gathered from the literature on 3 significant soil kinds: shrink-swell soils, purple ferruginous (RF) soils and the soils that happen within the tropical environments of the Indo-Gangetic Plains (IGP). It additionally presents insights into a number of elements of 5 pedogenetically very important soil orders like Alfisols, Mollisols, Ultisols, Vertisols and Inceptisols present in tropical Indian environments.

Documenting the importance of minerals in soils and their total effect in soil technology when it comes to pedology, paleopedology, polygenesis and edaphology, it offers an information base that's severe whilst trying to bridge the distance among nutrients construction and inhabitants progress.

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Extra resources for A Treatise of Indian and Tropical Soils

Example text

The presence of both montmorillonite and beidellite in the fine-clay fractions of Indian shrink–swell soils in basaltic alluvium was confirmed by the Greene-Kelly test (Greene-Kelly 1953), and the former dominates over the latter (Pal et al. 2012a). It is interesting to note that on glycerol vapour treatment (Harward et al. 9 nm, indicating only the presence of montmorillonite (Fig. 7). In other words, fine-clay smectite is nearer to montmorillonite in the montmorillonite–beidellite series. Since the nontronite would behave like beidellite in these tests and clay smectite is unstable under HCl treatment, consequently releasing considerable iron in solution, it was concluded that the smectite in Vertisols is nearer to the montmorillonite of the 22 2 Cracking Clay Soils (Vertisols): Pedology, Mineralogy … Fig.

While relating the shrink-swell properties and clay mineral types Bhattacharyya et al. (1997) concluded that the vertic properties of soils are a function of smectite content. Despite this basic understanding, several non-expanding clay minerals (kaolin, micas, chlorites, palygorskite and vermiculites) are often mentioned to be associated with shrink-swell properties of Vertisols and their vertic intergrades (Hajek 1985; Coulombe et al. 1996; Heidari et al. 2008). In addition, kaolinite is reported to be abundant in some Vertisols in El Salvador (Yerima et al.

India, pp 227–228 References 41 Ray SK, Chandran P, Bhattacharyya T, Durge SL, Pal DK (2003) Layer charge of two benchmark Vertisol clays by alkylammonium method. Clay Res 22:13–27 Ray SK, Chandran P, Bhattacharyya T, Pal DK (2006b) Determination of layer charge of soil smectites by alkyl ammonium method: effect of removal of hydroxy-interlayering. Abstract, 15th annual convention and national symposium on “Clay Research in relation to agriculture, environment and industry” of the clay minerals society of India.

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A Treatise of Indian and Tropical Soils by D.K. Pal

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