通过田间观察及调查,明确了云南干热区4个木薯品种叶斑病在4种不同种植模式下的发生及危害情况,得出叶斑病的发病率和危害指数。对木薯品种和栽培模式等主要影响因子的单因子分析和多重比较结果表明:SC5和新选048采用直插并施肥的方式发病率最低,新选048采用直插的方式发病程度最轻。 Through the field observation and investigation, the occurrence and damage of four cassava varieties in Yunnan dry-hot area under 4 different planting modes were clarified, and the incidence and hazard index of leaf spot were obtained. The results of single factor analysis and multiple comparisons on the main influencing factors of cassava varieties and cultivation modes showed that the incidence rate of SC5 and new selection 048 was the lowest with in-line and fertilization methods, and the new selection 048 had the lightest incidence using in-line method.