According to the principle of rainfall collection using

some slope field is left as rainfall collection area to provide water to plant area

and to decrease water deficit of wheat in plant area. The result shows

if the ratio of rafall collection area to plant area is 1∶1

the soil water condition of plant area will be improved obviously

single development of wheat in plant area will grow better

the yield will be increased by 51.38%

and WUE is raised 2.27 kg/(mm· hm2) compared with the check plot.