小麦冬灌可以稳定地温、塌实土壤、防止冻害死苗，促使小麦提前返青，还可以消灭土壤中越冬害虫，是小麦增产的一种行之有效的措施，一般增产１０－２０％。为了保证小麦安全越冬，发挥冬灌防寒彻冻的增产作用，冬灌必须注意以下几点： １．时间适宜：冬灌的时间应因各地气候条 Winter wheat irrigation can stabilize the temperature, soil collapse, to prevent frostbite dead seedlings, prompting wheat to early green, but also to eliminate overwintering pests in the soil, wheat yield is an effective measure, the general increase of 10-20%. In order to ensure the safety of winter wheat, winter irrigation to play a role in increasing the yield of winter cold irrigation must pay attention to the following points: 1. Time is appropriate: winter irrigation due to climate factors