Abstract: According to the experiment with different irrigation treatment leuels of winter wheat in Fukang Experimental Station, Chinese Academy of Sciences in the years 1999-2000, this paper compared the relationship between the winter wheat yield and irrigation lerels; verified that the sensitive period of winter wheat is during the time of jointing stage to in the filling stage; advanced that"low-level irrgation" is a better irrigating method than old irrgating method at greening stage of winter wheat in Fukang area of Xinjiang, this method of irrgation can econmically utilize water and does not influence the output of wheat. Through the field experiments of different irrigation levels to winter wheat maturing period, the soil moisture change in different soil depth were analyzed and discucsed, water consumption of winter wheat was concentrate at the 0.0 cm to 30 cm soil layer at the maturing stage.

Key words: irrigation, soil moisture, water stress, Fukan Area