Ways for increasing water use efficiency in farmland of Taihang piedmont

For sustainable agricultural development in Taihang piedmont,measures must be applied to reduce irrigation water use.Based on field experimental results for many years,ways for increasing farmland water use efficiency are discussed and the measures include reducing soil evaporation,coupling water and fertilizer,fully utilization of soil water,high efficient irrigation schedule and managing root system for efficient water use.Straw mulching can reduce farmland evaporation about 40mm annually,and one or two irrigations can be omitted by optimal irrigation schedule to winter wheat.