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 2022 - IJCMAS--ICV 2022: 95.28 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

See Guidelines to Authors
Current Issues
Download Publication Certificate

Original Research Articles                      Volume : 7, Issue:9, September, 2018

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

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 384-389

Microbial Biomass - Carbon (SMB-C) and Dehydrogenase Activity (DHA) in Wetland Rice Ecosystem
Prabha Susan Philip1*, R.K. Kaleeswari2 and K. Kumar3
1ICAR - National Bureau of Soil Survey and Land Use Planning, Regional Centre, Delhi -110012, India
2Department of Soil Science, 3Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Tamil Nadu, India
*Corresponding author

A field experiment was conducted in clay loam of Wetlands of TNAU farm, Coimbatore to study the impact of nutrient management technologies on Soil Microbial Biomass-Carbon (SMB-C) and Dehydrogenase Activity (DHA) of soil under lowland rice ecosystem. In the present investigation, integration of inorganics, Sesbania aculeata and biofertilizers have intensively triggered the microbial activities, which would have resulted in higher dehydrogenase activity. The better nutrient management leads to better crop productivity which results in incorporation of larger organic matter through root biomass or leaf fall, root exudates, etc. thereby influencing the C dynamics in soil. The nutrient level and moisture play a dominant positive role towards the dehydrogenase activity. The dehydrogenase activity and biomass carbon content tended to increase with the advancement in crop growth. The results from the correlation analysis have revealed that the soil nutrient status has a direct and significant role in enhancing the soil microbial and enzyme activities. Integrated use of inorganic fertilizers, Sesbania aculeata and Azolla orchestrates soil nutrient availability, biomass production, biochemical activities and favorable soil physical environment that facilitate effective carbon sequestration in lowland rice ecosystem.

Keywords: Soil microbial biomass carbon, Dehydrogenase activity, INM

Download this article as Download

How to cite this article:

Prabha Susan Philip, R.K. Kaleeswari and Kumar, K. 2018. Microbial Biomass - Carbon (SMB-C) and Dehydrogenase Activity (DHA) in Wetland Rice Ecosystem.Int.J.Curr.Microbiol.App.Sci. 7(9): 384-389. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.