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

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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(6): 1073-1080
DOI: https://doi.org/10.20546/ijcmas.2020.906.133


Soil Enzymatic Activity under Different INM Practices in Rice-Rice Cropping System
P.V. Geetha Sireesha*, G. Padmaja, M. Venkata Ramana and P.C. Rao
Dept. of Soil Science and Agricultural Chemistry, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad - 500 030, India
*Corresponding author
Abstract:

Studies were conducted to understand the influence of integrated nutrient management on soil enzymatic activity under rice-rice cropping system since 1988 at Agricultural College Farm, Rajendranagar, Hyderabad. The enzyme activities viz., urease (55.8, 54.2 µg of NH4+-N g-1 soil 2h-1), dehydrogenase (488.23, 364.3 µg of TPF g-1 soil day-1) and acid (79.28, 70.50 µg p-nitrophenol g-1 soil h-1) and alkaline phosphatase (149.70, 129.53 µg p-nitrophenol g-1 soil h-1) were significantly higher in treatment T3 (50 % RD of NPK + 50 % N through FYM) in both kharif and rabi seasons. The enzyme activity of soils, which is governed by microbial population is also significantly higher in INM treatments. Our results demonstrate that soil enzymatic activity acted as a useful indicator of soil fertility dynamics. Enzymatic activities were positively and significantly correlated with content of organic carbon.


Keywords: Dehydrogenase, INM, Phosphatase and urease activity
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How to cite this article:

Geetha Sireesha, P.V., G. Padmaja, M. Venkata Ramana and Rao, P.C. 2020. Soil Enzymatic Activity under Different INM Practices in Rice-Rice Cropping System.Int.J.Curr.Microbiol.App.Sci. 9(6): 1073-1080. doi: https://doi.org/10.20546/ijcmas.2020.906.133