Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(1): 386-405
DOI: https://doi.org/10.20546/ijcmas.2020.901.043


Studies on Sand and Clay Minerals of Kanaginahala Sub-Watershed in Gadag District, Karnataka, India
Madhusudhan* and P. L. Patil
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Dharwad University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
*Corresponding author
Abstract:

Mineralogical study was carried using XRD analysis of six representative pedons of two horizones (Ap andBw) developed over granitegneissin Kanaginahala sub-watershed to describe the mineralogical composition of sand and clay fractions. The slope of the study area ranged from 1 to 3 per cent with moderate to severe erosion, soil colour was dark grayish brown (2.5 Y 4/2) tovery dark gray (10 YR 3/1), texture was clay in all the pedons. The pH was neutral to moderately alkaline (pH 7.55 to 8.32), with ECnonsaline (0.15 to 0.54 dSm-1) and organic carbon low to high range(2.82 to 9.02 g kg-1). CEC was relatively high in all the pedons, it ranged from 42.33 to 49.38cmol (p+) kg -1 and ESP was ranged from 4.78 to 8.86. The study revealed that’s mectite was the dominant clay mineral. It varied from 60.3 to 88.7 per cent in Ap horizon and 55.7 to 74.2 per cent inBw horizon, Vermiculite was ranged from 12.6 to 26.8 per cent in surface and 11.2 to 28.4 per cent in Bw horizon, followed by kaolin and quartz. Kaolin and quartz varied from 6.0 to 12.8 per cent and 2.7 to 13.6 per cent, respectively in Ap horizon and 5.2 to 13.4 per cent and 3.0 to 8.9 per cent, respectively in Bw horizon. In most of the pedons, the smectite content increased while kaolin content decreased with soil depth. Among second minerals, smectite dominated over vermiculite and kaolin.


Keywords: Sub-watershed, clay minerals, smectite, vermiculite and Kaolin
Download this article as Download

How to cite this article:

Madhusudhan and Patil, P. L. 2020. Studies on Sand and Clay Minerals of Kanaginahala Sub-Watershed in Gadag District, Karnataka.Int.J.Curr.Microbiol.App.Sci. 9(1): 386-405. doi: https://doi.org/10.20546/ijcmas.2020.901.043