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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 2022: 95.28
Index Copernicus ICI Journals Master List 2022 - IJCMAS--ICV 2022: 95.28
For more details click here
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Original Research Articles                      Volume : 11, Issue:11, November, 2022
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com /
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
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Int.J.Curr.Microbiol.App.Sci.2022.11(11): 22-28
DOI: https://doi.org/10.20546/ijcmas.2022.1111.003


Influence of Pesticides on Azospirillum Populations and its Nitrogen Fixing Activity in Cotton Cultivated Black Soils of Kurnool District, Andhra Pradesh, India
Vaishnava Karunanidhi Murthy, Mokula Mohammed Raffi and Vengatampalli Rangaswamy*
Department of Microbiology, Sri Krishnadevaraya University, Anantapur, India
*Corresponding author
Abstract:

The influence of selected insecticides, monocrotophos, cypermethrin and fungicides mancozeb and hexaconazole was evaluated on Azospirillum population in vertisol soils collected from cotton grown fields of Kurnool district, Andhra Pradesh, India. The influence of these pesticides on Azospirillum population was dose dependent; insecticide monocrotophos showed the maximum stimulation towards Azospirillum population at 5.0 kg ha-1, whereas cypermethrin showed maximum enhancement at 2.5 kg ha-1 level. Likewise the fungicide mancozeb and hexaconazole showed maximum stimulation at 5.0 kg ha-1. The pesticides up to 5.0 kg ha-1 were either stimulatory or innocuous to bacterial population. The highest stimulation in bacterial population was observed at 10-day incubation.


Keywords: Pesticides, Organophosphorus insecticides, agriculture, foliage, weeds

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How to cite this article:

Vaishnava Karunanidhi Murthy, Mokula Mohammed Raffi and Vengatampalli Rangaswamy. Influence of Pesticides on Azospirillum Populations and its Nitrogen Fixing Activity in Cotton Cultivated Black Soils of Kurnool District, Andhra Pradesh, India.Int.J.Curr.Microbiol.App.Sci. 11(11): 22-28. doi: https://doi.org/10.20546/ijcmas.2022.1111.003
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.

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