Study on the corn limited irrigation schedule at pumping areas in Yellow River of Ningxia

Combined with the characteristics of limited quota water supply in central Ningxia's drought irrigation areas,integrated the film coverage to keep soil moisture technique,field of micro water harvesting technique,limited quota supplementary irrigation techniques,the paper carried out the experimental research for corn limited irrigation schedule,and comprehensively analyzed the critical period of crop water requirement,the limted quota irrigation technology,soil water content,crop yield,water use efficiency.finally,it put forward the suitable corn limited irrigation schedule for central arid zone in Lingxia.