Impact of Pre and Post Emergence Herbicide Application on Soil Microbial Population Assessment in Direct Wet Seeded Rice

Direct wet seeded rice is eminent due to low energy and cost required for the cultivation. The only disadvantage difficulty manage weeds which farmers rely mostly on herbicides effective management. Herbicides are bioactive compounds will affect soil microflora by its ecotoxicological behaviour. Hence, in this study such as pendimethalin, pretilachlor + pyrazosulfuron ethyl (tank mix) pre-emergence bispyribac sodium ethoxy sulfuron mix), penoxsulam cyhalofop butyl (ready trifamone post emergence their regular dosage were evaluated impact microbial population viz; bacteria, fungi actinomycetes. results revealed that these affected during initial days but later was regained at 55 DAS indicates reduction toxicity level of applied herbicides.