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http://krishi.icar.gov.in/jspui/handle/123456789/43662
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Patil, B.A., Chandran, P., Ray, S.K., Prasad, Jagdish, Karthikeyan, K. and Tiwary, P. | en_US |
dc.date.accessioned | 2020-12-26T06:25:39Z | - |
dc.date.available | 2020-12-26T06:25:39Z | - |
dc.date.issued | 2017-02-17 | - |
dc.identifier.citation | Patil, B.A., Chandran, P., Ray, S.K., Prasad, Jagdish, Karthikeyan, K. and Tiwary, P. (2017) Genesis of Soils in a Catenary Sequence in Bemetara District, Chhattisgarh. Paper presented at the 20th Annual Convention & the National Conference on “Harnessing Clay Science for Human Welfare”, Clay Minerals Society of India, New Delhi, 17-18 February, 2017, Nagpur, pp.66-67 | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/43662 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Shrink-swell and red ferruginous are the two dominant soils in Chhattisgarh state and they occur in close association, with red soils (Alfisols) occurring in upper and black soils (Vertisols) in lower topographic positions. Such associations are very common in this state and other parts of India. Chhattisgarh is considered as rice bowl of central India and the yields are comparable with that of the western IGP particularly in Bemetara block. However the rice growing soils of Chhattisgarh are less studied than other states. Chhattisgarh basins are primarily developed from lower Vindhyan rocks constituted by sandstone, limestone shale, gneisses and quartzite. The geology of the Bemetara is shale and dolomite. We studied two soils in a catena to understand the properties of such rice growing soils and elucidate their genesis. Two representative red and black soils of Bemetara district of Chhattisgarh under sub-humid moist were studied in detail for morphological, physical, chemical and mineralogical properties using standard methods. There are variation in colour reaction and other physical and chemical properties. Red soils are 5YR 3/2 in colour, clay to clay loam in texture and classified as Clayey skeletal mixed hyperthermic Typic Haplustalfs. The black soils are 10YR 3/2 in colour, silty clay to clay in texture and classified as Fine Smectitic hyperthermic, Typic Haplusterts. The ferruginous red soils in the upper topographic position are neutral to alkaline with its pH varying from 7.3-7.5 with medium CEC (18-23 cmol ( + ) Kg-1). The black soils are slight to strongly alkaline (pH 7.5-8.5) with high CEC (50-55 cmol ( + ) Kg-1). Both the soils are dominated by Ca + + in the exchange complex followed by Mg +, Na + + and K +. Total clay in red soils varies from 34-45 per cent, whereas black soils contains of 53-61 per cent total clay of which > 50 per cent is fine clay in both the soils. The hydraulic conductivity of both soils are low and varies from 0.16-0.25cmhr-1 in red soils and 0.19-0.26 cmhr-1. X-ray diffraction studies indicate that sand fraction of ferruginous soils and shrink-swell soils are dominated by quartz with traces of goethite. In silt fraction, dominant minerals were quartz followed by mica and kaolin in both soils except feldspars and vermiculite in traces amount were found in black soil. In total clay and fine clay of red soils, dominant mineral found is mica following kaolin and quartz. In shrink-swell soils total clay and fine clay are dominated by Smectite followed by mica with traces of kaolin minerals. The major geology of the study area is shale with sporadic occurrence of dolomite and it is improbable that smectite cannot be formed from these materials. As parent material cannot furnish sufficient bases required for genesis of montmorillonite and conversion of kaolinite or illite into smectite is quite impossible. So smectite at valley might have been formed from basaltic parent material which might have brought about by fluvial action or by geomorphologic processes. The present geomorphic surface of the area is carved out by rivers which had been eroding the land since far early time. Thus it appears that the black soils and red soils are formed from basaltic alluvium deposited over shale and mineralogy of the soils confirms the fact. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Not Available | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | Genesis, Soils, Catenary Sequence, Bemetara District, Chhattisgarh | en_US |
dc.title | Genesis of Soils in a Catenary Sequence in Bemetara District, Chhattisgarh | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Presentation | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Not Available | en_US |
dc.publication.volumeno | Not Available | en_US |
dc.publication.pagenumber | Not Available | en_US |
dc.publication.divisionUnit | Nagpur | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | ICAR::National Bureau of Soil Survey and Land Use Planning | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
Appears in Collections: | NRM-NBSSLUP-Publication |
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