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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(7): 652-662
DOI: https://doi.org/10.20546/ijcmas.2019.807.081


Influence of Slow Release Nitrogenous Fertilizers on Soil Enzyme Activity and Microbial Population under Laboratory Condition
Priyanka B. Patil*, A.D. Kadlag and A.G. Durgude
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Mahatma Phule Krishi Vidyapeeth, Rahuri, (M.S), India
*Corresponding author
Abstract:

An Incubation study under laboratory condition were conducted during 2015-16 with a view to study “Influence of slow release nitrogenous fertilizers on soil enzyme activity and microbial population under laboratory condition” The laboratory incubation experiment was conducted in completely randomized design. In incubation study, the urease enzyme activity was increased with an increased period of incubation in all the treatments. Dehydrogenase enzyme activity was significantly higher in treatment GRDF at 7, 21, 45 and 90 DAA (1.41, 1.55, 1.69 and 1.56 µg TPF g-1 soil hr-1 respectively). It was increased upto 45 DAA and decreased at 90 DAA. The treatment GRDF significantly recorded the higher population of Nitrosomonas at all the period of incubation and on par with treatment RDN-SCU, NCU and CDU at 7 and 14 DAA. The use of NCU and SCU recorded less Nitrobacter population in early period of incubation. The application of nitrogen through slow release fertilizers as CDU, NCU and SCU and their combination with urea and among the organic sources release the soil available nitrogen with advanced incubation period. It was decreased in treatment GRDF and RDN-CDU at 90 DAA. The release of ammonical nitrogen in all the treatments showed the similar trend to that of soil available nitrogen at all the period of incubation. The slow release nitrogen fertilizer treatment @ 50 % RDN-urea + 50 % RDN either through CDU, NCU or SCU were beneficial for release of nitrate nitrogen in soil.


Keywords: Slow release nitrogenous fertilizers, Urease, Dehydrogenase activity, Bacterial population
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How to cite this article:

Priyanka B. Patil, A.D. Kadlag and Durgude, A.G. 2019. Influence of Slow Release Nitrogenous Fertilizers on Soil Enzyme Activity and Microbial Population under Laboratory Condition.Int.J.Curr.Microbiol.App.Sci. 8(7): 652-662. doi: https://doi.org/10.20546/ijcmas.2019.807.081