山药与伏汤菜（夏小青菜）、雪菜（雪里蕻）及冬青菜的间套种，是笔者近年试验探索成功的又一理想的多熟立体高效复种模式。因在周年生产过程中．其可最大限度地利用当地光热资源，促进生育期与有利气候同步，从而实现最佳经济效益。我县示范推广的3hm2复种田，每667m2年均净产 Yam and V soup (summer small greens), pickled cabbage (snowy) and winter intercropping intercropping, the author in recent years to explore the success of another ideal multi-cooked three-dimensional high-efficiency double cropping pattern. Because in the annual production process. It can maximize the use of local light and heat resources, and promote the growth of favorable climate synchronization, in order to achieve the best value for money. My county to promote the demonstration of 3hm2 complex farming, 667m2 an average annual net production