International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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): 3240-3255

Effect of Herbicides on Microbial Population and Soil Enzymes in Bt Cotton Cultivated Soils
M. Tejashree1, R. Subhash Reddy1 and G. Anuradha2
1Department of Agricultural Microbiology and Bioenergy
2Institute of Biotechnology, College of Agriculture, Professor Jayashankar Telagana State Agricultural University, Rajendranagar, Hyderabad 500 030, Telangana, India
*Corresponding author

India is the largest cotton producing country, covers an area of approximately 36 % area representing about 11.3 million hectares under cotton. It also consumes considerable amount of herbicides and pesticides which are biologically active compounds which may lead to the significant changes in the soil microorganisms. Hence, in this study the herbicides viz., pyrithiobac, pendimethalin and pyrithiobac + quizalofop are sprayed as pre-emergence herbicides and the soil samples were collected at squaring, flowering, boll formation and at harvesting stage. The effects of these chemicals were studied on soil enzymes and microbial populations in soil. The study on the soil enzymes and soil microbial population in the rhizosphere of non Bt cotton and Bt cotton revealed that the microbial population were least effected by pendimethalin followed by pyrithiobac and least activity was seen in pyrithiobac + quizalofop.

Keywords: Soil microbial biomass, Dehydrogenase, Acidic phosphatase, Alkaline phosphatase and urease

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How to cite this article:

Tejashree, M., R. Subhash Reddy and Anuradha, G. 2018. Effect of Herbicides on Microbial Population and Soil Enzymes in Bt Cotton Cultivated Soils.Int.J.Curr.Microbiol.App.Sci. 7(9): 3240-3255. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.