引言为了验证地膜栽培在小麦越冬期覆盖的增产作用及其经济效益,解决冬小麦在干早寒冷的气候条件下死苗严重的问题,我们于1985—86年度在姜国正和王天定的相邻地块内安排了“冬小麦地覆盖越冬试验”。实际覆盖面积0.654亩,两户各为0.327亩,以各自同块地未覆盖麦田为对照。 Introduction In order to verify the plastic film cultivation in wheat overwintering period of the yield-increasing effect and its economic benefits, to solve the problem of winter wheat seedlings in dry and cold weather conditions serious problem, we 1985 and 86 in the neighboring land of Jiang Guozheng and Wang Tianding Arranged within the winter wheat overwintering test. The actual coverage area of ​​0.654 acres, two households each 0.327 acres, with their own land not covered with wheat as a control.