Impact of Pesticides and Biopesticides on Soil Microbial Biomass Carbon
Journal Title: Universal Journal of Environmental Research and Technology - Year 2013, Vol 3, Issue 2
Abstract
Soil microorganisms have a primary role in the environment through degradation of plant and animal residues. The activities of microorganisms in soil are thus essential to the global cycling of nutrients. As these pesticides are designed to be biologically active their continuous use might affect soil microflora which may lead to impairment in soil fertility. The effect of five pesticides (Cypermethrin, Malathion, Victor, Monocil and Tafgor) and five biopesticides (Folicon, Paeciliomyces lilacinus, Bacillus subtilis, Pseudomonas florescens and Beauveria bassiana) on soil microbial biomass carbon was assessed under laboratory conditions. Pesticide treatment resulted in short lived transient toxic effect on soil microbial biomass carbon. The microbial biomass carbon content of soil increased with time in biopesticide treated soil which has a good role in agriculture production. In case of Victor treated soil, a drastic decrease in microbial biomass carbon was observed as compared to other pesticides used. Biomass carbon increased with the biopesticides treatment and the increase was found to be maximum with Paeciliomyces lilacinus.
Authors and Affiliations
Sonia Sethi, Saksham Gupta
Keywords
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