In this paper,the composition and additives of water dispersible pesticide formulation of nicosulfuron microemulsions was introduce.By drawing the phase diagrams of the surfactants/nicosulfuron solution/water system determine the micro-emulsion composition.It studied the affect of temperature and water quality on the physical to stability of the water dispersible pesticide formulation preparation.The composition has many good characteristics,for example low cost,stable quality,safety in use,good foreground ...