１试验目的小麦是河西高海拔冷凉灌区的主要粮食作物，目前仅靠单种小麦使该区粮食作物产量达到１０５００ｋｇ／ｈｍ２以上是比较困难的。实践证明，间作套种是充分利用光、热资源，大幅度提高粮食产量的有效途径。但河西高海拔冷凉灌区积温不足，因此，必须因地制宜探索... 1 The purpose of the experiment Wheat is the main food crops in Hexi Irrigation Area with high altitude and cold water. Currently, it is more difficult to produce more than 10,500 kg / hm2 of grain crops in the area with single wheat only. Practice has proved that intercropping intercropping is an effective way to make full use of light and heat resources and greatly increase grain output. However, Hexi high-altitude cold irrigation irrigation area lack of accumulated temperature, therefore, must be based on local conditions to explore ...