Effect of Some Pesticides on Fungal Biomass of Agricultural Soil

摘要

A study has been conducted under laboratory and field condition to determine the effects of differentconcentrations of different pesticides i.e., Chlorpyrifos, Dimethoate and MEMC on total number and diversityof soil fungi. Both, the laboratory and field studies revealed that all the pesticides inhibited the fungal populationin soil. MEMC significantly inhibited the growth of greatest number of fungi at all the concentrations even atfield application followed by Chlorpyrifos. Whereas Dimetheoate has no significant effect on soil fungi bothin the laboratory and the field trial. In the field experiment, effect was reduced at 25 day after application of allthe pesticides.