烟草赤星病综合防治技术研究

Study on the Integrated Management Technique of Tobacco Brown Spot

试验结果表明 ,采用增施钾肥、适时打顶和下部叶片近成熟期摘除 1～ 3片底脚叶等措施 ,提高烟草品种抗病性、配合化学农药综合防治烟草赤星病 ,在重病区布局抗病品种 ,能有效地推迟病害的发生时期 ,减慢病情的发展速度 ,且能减少农药施用量和施用次数 ,减少环境污染 ,达到防治病害、减轻损失的目的。

The result of field experiments showed that the higher resistance to tobacco brown spot by the method of increasing apply potash fertilizer,topping of tobacco plants in later at the suitable date and taking off 1～3 leaves of tobacco bottom at nearly mature period,using better fungicied and selecting resistance variety in diseases serious region.Those technique will slow down the speed of epidemic and lower quantity of fungicides applying and also to reduce fungicide and environmental pollution for cotrol brown spot.