(二)通过几年来的生产实践表明,麦薯套种,不仅增产幅度大,而且在管理上也比其它套种形式方便省工,农民喜欢采用。麦薯套种优点是:1、麦薯套种与当地气候条件相适应。马铃薯是喜欢凉爽的作物。套种马铃薯生长旺盛期是8、9月,这时当地气候凉爽,昼夜温差较大。我旗历年8月份比7月份温度低2.2℃,9月份比7月份低8.5℃左右,白天温度一般在25℃左右,夜间在15℃以下,所以套种的马铃薯块有的比单种的还大,农民称它“秋楞子”。套种马铃薯减轻退化,贮藏不易腐烂,宜做种薯。2、麦薯套种能充分利用光能资源。小麦、马铃薯这样两种作物生长期兴衰交替,最大叶面积系数先后出现,既使田间保持了高 (B) Through years of production practice shows that intercropping of wheat, not only increase the rate of large, but also in the management of other intercropping forms to facilitate labor-saving, farmers like to use. Interplanting the advantages of wheat is: 1, intercropping of wheat and the local climate conditions. Potatoes are like cool crops. Intercropping potato growth period is August, September, when the local climate is cool, large temperature difference between day and night. My flag calendar in August than in July, the temperature is low 2.2 ℃, September is lower than in July about 8.5 ℃, the daytime temperature is generally around 25 ℃, at night below 15 ℃, so the intercropped potato pieces are larger than a single Peasants called it “Akiko.” Interplant potato to reduce degradation, storage is not easy to decay, should be done seed potato. 2, Intercropping can make full use of solar energy resources. Wheat, potatoes, the rise and fall of the growth of these two crops alternately, the maximum leaf area coefficient has appeared, even if the field remained high