在新疆灸热干燥的六月下旬常出现千热风,干热风吹过时,气温升高很大,空气湿度极低,迫使株间蒸发量急剧加大,造成植株体内散、供水极不平衡,引起植株脱水受损或死亡,致小麦青干,籽粒干秕或小穗不成熟,产量损失5—20％或更大。我们采用喷灌防止干热风对 In moxibustion hot and dry in Xinjiang in late June often appear thousands of hot air, dry hot air out of date, a great temperature rise, the air humidity is extremely low, forcing a sharp increase in evaporation between strains, resulting in bulk plant water, water supply is extremely unbalanced, causing Plant damage or death caused by dehydration, resulting in green stems dry, spikelets or spikelets immature, yield loss of 5-20% or more. We use spray irrigation to prevent hot and dry wind on