A field experiment was conducted in suburban areas of Beijing.The effect of four treatments,namely conventional tillage and fertilization(CTF),precision fertilization(PF)alone at the topdressing stage,laser land leveling(LL)alone prior to sowing,and a combination of PF+LL,on CO_2,N_2O,and CH_4 emissions were examined.The results showed that LL significantly increased the wheat yield by 7.10% compared with CTF,and surface soil moisture content was significantly improved.Regarding greenhouse gas emissions,the amount of CH_4 absorbed by soil was significantly increased by 22.00%,but CO_2 and N_2O emission fluxes were increased by 27.20% and 8.81%,respectively.Compared with CTF,PF had no effect on wheat yield.The peak value of N_2O emissions emerged after topdressing and significantly decreased by 15.41%.The emission fluxes of N_2O between the topdressing stage and harvest stage were significantly decreased by 15.05%.However,in the entire season of winter wheat,there were no differences in emissions of CO_2,N_2O,and CH_4 found between PF and CTF.PF+ LL significantly increased the wheat yield by 8.20% compared with CTF,and the water holding capacity of soil was enhanced,as the water content was significantly increased by 8.81% and 7.63% in the rainy season and irrigation season,respectively.The cumulative emissions of CO_2 were significantly decreased by 33.53%.The absorbed amount of CH_4 was significantly decreased by 31.50%.PF+LL also had no effect on the cumulative emissions of N_2O in the entire season of winter wheat,but it significantly decreased the N_2O emissions between the topdressing stage and harvest stage.In summary,LL could significantly increase the winter wheat yield,but it also increased the global warming potential.PF had no significant effect on wheat yield,but it decreased the peak value of N_2O emissions,thereby showing the potential to reduce N_2O emissions.In conclusion,the prospects of precision agriculture technology in increasing production and reducing emissions need to be further studied.