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http://krishi.icar.gov.in/jspui/handle/123456789/40213
Title: | Re-search Shrink-Swell Measurement and Relationship with Soil Properties of Black Clayey Tropical Vertisols |
Other Titles: | Not Available |
Authors: | PRAVIN B. THAKURˆ, TAPAS BHATTACHARYYA, S. K. RAY, P. CHANDRAND, D. K. PAL AND B. A. TELPANDE |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | AICAR-Central Research Institute for Dryland Agriculture, Hyderabad-500 059 ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur-440 033 Dr. Balasaheb Savant Konkan Krishi Vidyapeeth, Dapoli- 415 712 |
Published/ Complete Date: | 1001-01-01 |
Project Code: | Not Available |
Keywords: | Hysteresis, Shrink-swell, Volume change, Exchangeable cations, Carbon |
Publisher: | The Clay Minerals Society of India |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Shrink–swell phenomenon is a complex process in vertic group of soils. Their dynamics in soils has long been presented through various models, field and laboratory methods. The present study finds out a feasible way to measure the shrink-swell potential and the key responsible factors in soil which are most influentialin determiningthis phenomenon.Four shrink– swell parameters such as coefficient of linear extensibility(COLE), coefficient of linear shrinkage (COLS), percent volume change on swelling(PVCsw), percent volume change onshrinkage (PVCs) measured at 25oC (room temperature,RT), 40oC and 110oC wereused to quantifyshrink – swell phenomenon. Results indicated that heating the soil cake at 110oC over 40oC does not bring higher change (0-10 %) in linear shrinkage, the corresponding value for volume change at 110oC showed greater change (3-61%) hence, COLS at 40oC and PVCs at 110oC amongst others were promising and may be recommended for routine measurement of shrink–swell phenomenonin the laboratory. Out of three the different measurement devices, cube shaped box appeared to be the better option. The soil properties which representcarbon content and soil substrate have significant correlations(p<0.01, p<0.05) with the corresponding shrink–swell parameters. The multiple regression analysis showed 69 percent variation for PVCs 110oC and 63 percent for COLS 40oC. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Clay Research |
NAAS Rating: | Not Available |
Volume No.: | 35(2) |
Page Number: | 37-54 |
Name of the Division/Regional Station: | ICAR-National Bureau of Soil Survey and Land Use Planning, Regional Centre, Jorhat |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/40213 |
Appears in Collections: | NRM-NBSSLUP-Publication |
Files in This Item:
File | Description | Size | Format | |
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79 praveen et al 2016, Clay research.pdf | 1.14 MB | Adobe PDF | View/Open |
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