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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 results showed that the measures such as increasing the amount of potash fertilizer, timely topping and removal of 1 to 3 feet at the mature stage of the lower leaves increased the disease resistance of tobacco varieties, combined with chemical pesticides to control tobacco brown spot disease, Diseases can effectively delay the occurrence of diseases, slow down the development of the disease, and can reduce the amount and frequency of pesticide application, reduce environmental pollution and achieve the purpose of disease prevention and mitigation.