烤烟是产值和商品率极高的经济作物，在国民经济中占有十分重要的位置。烤烟的生产效益在很大程度上取决于烟叶质量。而钾素营养对烟叶质量、香气、吃味、燃烧性和吸食安全性都有很大影响。所以，钾肥种类、施钾技术和烟叶的含钾量是影响烤烟种植效益和商品率的主要因素之一。 Flue-cured tobacco is a cash crop with high output and commodity rate and occupies a very important position in the national economy. The production efficiency of flue-cured tobacco depends largely on the quality of the tobacco leaf. The potassium nutrition on tobacco quality, aroma, eating, burning and smoking safety have a great impact. Therefore, the type of potash fertilizer, potassium application and potassium content of tobacco are one of the main factors that affect the planting efficiency and commodity yield of flue-cured tobacco.