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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 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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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(10): 1879-1884
DOI: https://doi.org/10.20546/ijcmas.2020.910.230


Characterization of Soil Acidity under Paddy Land Use Cover of Coastal Karnataka
M. Jayaprakash*, H. M. Chidanandappa, B. C. Dhananjaya, N. Thippeshappa, Y. Vishwanatha Shetty and M. Hanumanthappa
Zonal Agricultural & Horticultural Research Station, Brahmavar, UAHS, Shivamogga, India
*Corresponding author
Abstract:

The study was conducted at coastal zone of Karnataka to characterize the acidity of soils and to assess calcium and magnesium status of soils under paddy land is cover. Soil samples were collected at depth of 0-15cm from paddy growing areas of Dakshina Kannada and Udupi districts. The collected soil sample were processed and analyzed to know the physical and chemical properties of soil, the nature of soil acidity and the status of exchangeable calcium and magnesium in soils. The result from the present investigation revealed that active acidity was ranged from 2.19 x 10-6 to 8.9 x 10-5mol H+ L-1, exchangeable acidity was in the range of 0.401 to 5.959 cmol (p+) kg-1 g, pH dependent acidity varied from 3.000 to 49.875 cmol (p+) kg-1 and the total potential acidity which included both exchangeable and pH dependent acidity ranged from 4.98 to 50.818 cmol (p+) kg-1. From the investigation we came to know that more than 99.9 per cent of the total acidity in soils was found to be in the form of potential acidity and out of which nearly 8 per cent was in the form of exchangeable acidity. However, the order of distribution of different forms of acidity was found to be as follows; pH dependent acidity>Exchangeable acidity>Active acidity.


Keywords: Acidity, Exchangeable, Paddy, Calcium and Magnesium
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How to cite this article:

Jayaprakash, S. M., H. M. Chidanandappa, B. C. Dhananjaya, G. N. Thippeshappa, Y. Vishwanatha Shetty and Hanumanthappa, M. 2020. Characterization of Soil Acidity under Paddy Land Use Cover of Coastal KarnatakaInt.J.Curr.Microbiol.App.Sci. 9(10): 1879-1884. doi: https://doi.org/10.20546/ijcmas.2020.910.230