南通为传统的两熟棉区,六十年代以前,棉花多在元、大麦行间套种,实行元、大麦棉花-蚕豆-玉米的粮、棉轮作或稻、棉轮作。七十年代以来,棉花和玉米间种连作的面积逐年扩大,同时大面积推广了棉花营养钵育苗移栽,植棉技术发生了较大的变化。这些种植方式的增产效果和经济效益如何?在当前的生产条件和生态条件下,采用什么样的种植方式既能稳产高产,趋利避害,又能维持和提高土壤肥力?这是研究和制订本区棉花生产布局时急需解决的问题。为此,我们以五种主要的和次要的种植方式,在如东县兵房公社进行了连续三年的对比试验。 Nantong is a traditional double ripe cotton area. Before the 1960s, cotton was mostly planted in yuan and barley. Intergranting was conducted between yuan and barley cotton - broad bean - corn, cotton rotation or rice or cotton rotation. Since the 1970s, the area of ​​continuous cropping of cotton and corn has been expanding year by year. In the meantime, cotton seedling transplanting has been promoted in a wide range of fields. Cotton planting techniques have undergone major changes. What are the stimulation effects and economic benefits of these cultivation methods? Under the current production conditions and ecological conditions, what kind of cultivation methods can both maintain high yield, avoid disadvantages and maintain and improve soil fertility? This is the research and formulation The problem of urgent need to be solved in cotton production layout in this area. To this end, we conducted three consecutive comparative trials in the ROC Military Commune in five major and minor planting ways.