干热风是我国北方地区冬、春小麦生长后期常遇到的农业气象灾害，它发生在小麦开花、灌浆至成熟期间，严重影响小麦的高产稳产和优质。 　　一、运用综合农业措施防御干热风 　　1.选用抗干热风的优良品种选用抗干热风、丰产性良好的品种是防御干热风危害的根本措施。对于干热 Dry and hot winds are agricultural meteorological disasters often encountered in the winter and spring wheat growing in the northern part of China. They occur during wheat flowering and filling to ripening and seriously affect the high and stable yield and quality of wheat. First, the use of integrated agricultural measures to prevent dry hot air 1. Selection of anti-hot and dry wind of the fine varieties of anti-hot and dry wind, good yield varieties are defensive dry-hot wind hazards fundamental measures. For dry heat