Abstract: Based on the data of continuous field plot experiments for five years in Luoyang,the influence of four different tillage practices,namely reduced tillage(RT),no-tillage(NT),subsoiling(ST) and conventional tillage(CT) on the soil moisture,water use efficiency(WUE) and crop yields of winter wheat was studied.The results showed that the soil water content before sowing was obviously improved by the no-tillage and subsoiling,compared to that by the conventional tillage.According to the yield and WUE,treatments could be ranked from highest to lowest in turn as follows: ST,NT and RT.Therefore,we concluded that the subsoiling should be adopted in Luoyang area.

Key words: Tillage practice, Tillage practice, Winter wheat, Soil moisture