位于河北太行山区一带的赞皇、平山、井陉、阜平、唐县、易县等山区半山区县,农民可耕种的土地少,且坡地梯田较多,浇水困难,种植冬小麦产量低且不利于机械操作。因此这些地方冬小麦面积逐渐减少,大多只种植一茬春玉米。造成该地区一方面春季大量土地闲置,土地利用率和复种指数低,另一方面农民收入少,甚至粮食不够吃,始终摆脱不了贫穷的困扰。为了提高山区土地的利用率,增加农民的收入,近年我们在太行山区发展了“春季地膜马铃薯套种夏玉米”种植模 Pingshan, Weiping, Fuping, Tangxian and Yixian counties in the vicinity of Taihang Mountain area in Hebei Province have less land for arable cultivation, more terraced fields and difficult watering, and the output of winter wheat is low and not Conducive to mechanical operation. Therefore, these areas gradually reduce the area of ​​winter wheat, mostly only planted a spring corn. As a result, on the one hand, during the spring, a large amount of land was idle, the land utilization rate and multiple cropping index were low, and on the other hand, the peasants had little income and did not even eat enough food. In order to improve the utilization rate of mountainous land and increase the incomes of peasants, in recent years we have developed “Spring Membrane Potato Intercrop Summer Maize” planting in Taihang Mountain