在云南旱地上，改传统春植为秋植，在秋植规范栽培技术下，对秋植甘蔗下种量、行距、施氮、施磷、施钾五个重要因素采用二次通用旋转组合设计试验，建立秋植甘蔗栽培数学模型，根据试验示范蔗区不同生产条件，筛选出公顷单产８２．５～９０ｔ、９０～９７．５ｔ、９７．５～１０５ｔ三个产量层次的模式技术供生产示范推广。 In the dry land of Yunnan, the traditional spring planting was changed to autumn planting. Under the standard cultivation techniques of autumn planting, the quadratic common rotation combination design was used to evaluate the five important factors of seedling, row spacing, nitrogen application, phosphorus application and potassium application of autumn planting sugarcane. The mathematical model of sugarcane planting in autumn planting was established. According to the different production conditions of sugarcane plot in the experiment, the model technology of three yield levels of hectares yielding 82.5-90t, 90-97.5t and 97.5-105t was screened out for production demonstration Promotion.