Abstract: T he relations be tw een so ilw a ter and y ie ld fo rm a tio n and de te rm ina tion o f w a ter- sav ing irr ig a tion schem e in w in ter w hea t f ields and rain-pro o f shelte r have been studied. T he resu lt s show: the star ting po int o f y ie ld fo rm a tion is relat ive w a te r con ten t 30% ， the best po in t o f y ield fo rm at ion is relat ive w a te r con ten t 80% ， if so il w a ter con ten t is m o re than re l- a t ive w a ter con ten t 80% , y ield decreases， the m ax im um w heat y ie ld consum es 9000m m /ha o f w ate r， the econom ic w heat y ie ld consum es 6000m m /ha 2 o f w ate r， the w a ter-sav ing irr ig a- t ion schem e in h igh-y ie ld w hea t f ield consists o f base w a ter, jo in ting w a ter and g ra in f illing w a ter.

Key words: Winter wheat, Soil water, Yield formation, Irrigation scheme

CLC Number: 

• S512.1