National Academy of Agricultural Sciences (NAAS)
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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 |
In modern agriculture there is a pivotal role of pesticides in pest management though, the side effect pesticides on soil biological system is non avoidable. Experimental result shows that imidacloprid recorded 21.42% increased azotobacter population while chlorpyrifos recorded 31.04% less azotobacter in comparison with untreated check. All the treatments showed negative impact on the rhizobium population and rate of growth inhibition was 30.81% to 55.18%; whereas the inhibition rate was ranged 22.08% to 54.37% in case of total bacteria population. Proliferation of fungal propagules gets hindered due to application of insecticides (14.02% to 43.22%). Propagation of fungal propagules was significantly decreased in soil treated with chlorpyrifos. Application of phorate, rynaxypyr and carbofuran also had an inhibitory effect to the growth and multiplication of fungal population. Vivid reduction of phosphate solubilising bacteria (PSB) population was noticed during 28 days after application of insecticides; rynaxypyr and imidacloprid pronounced 94.68% inhibition of growth in respect control followed by fipronil (90.68%). Azotobacter was found less susceptible in comparison to rhizobium, fungi and phosphate solubilizing bacteria.
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