简介：A21－dincubationexperimentwasconductedundercontrolledlaboratoryconditionstostudytheeffectsofelevatedtemperatures(10,25,and40℃)onsomemicrobiologicalandbiochemicalpropertiesinfloodedpaddysoilamendedorunamendedwithureaat100μgNg^-1soiland/orinsecticide(triazophos)atfieldrate(FR).Enhancementsintemperatureledtoincreasetheelectrontransportsystem(ETS)/dehydrogenaseactivityandphospholipidcontentsofthesoil,whilesoilorganicmatterphenolandproteincontentsdecreasedwithincreasingtenperaturewithorwihtouttheadditionofinputs.Anincereaseoftemperaturefrom10℃to25or40℃enhancedtheETSactivity2folds(onavergaeforallsoils),whiletheinclusionofNandinsecticideincreasedanddecreasedit,respectively,comparedtothecontrol.Thesoilphenolandproteincontentswerehighlycorrelatedwithtemperatures(forallsoils,r=-0.936and-0.971,respectively)andtheadditionsofNandinsecticideproducedslightreductionsandenhancemetnsinthem,respectively,Ataparticulartempeature,thesoilproteincontentsremainedunaffectedamongallthesoiltreatments.AnoverallslightincreaseinphospholipidcontentswithNandasmalldeclinewithinsecticideadditionwerenoticedagainsttheuntreatedsoil.thetoxcityoffertilizerandinsecticidedecrasedastheincubationtemperatureincreasedsuggestingfasterdegradationofagrochemicalswithraisingtemperature.