旱地分带轮作多熟种植,是南方旱农增产的有效形式。不同生态类型区试验研究和生产实践证明,它是高功、高效、容粮、经、饲多元结构的最好形式。在资源(自然、社会)允许地区,便可广泛开发推广,它在增加叶日积值下,提高光能利用率,有明显的扩库促流作用。 Dryland zoning wheel for multi-cropping, dry farming is an effective form of increase in the South. Experimental studies and production practices in different ecotypes have proved that it is the best form of high efficiency, high efficiency, grain-letting, feeding, and feeding multiple structures. In resources (natural, social) areas allowed, can be widely developed and promoted, it increases the value of the leaf under the sun, improve the utilization of light energy, there is a clear expansion of the role of flow.