论文部分内容阅读
为了探索烤烟大田更有效的防治青枯病的方法,通过多年多点田间试验,考察了奇农素、纯植物源药剂结合噻菌铜对烤烟青枯病防控效果及对烟叶经济性状的影响。结果表明,施用奇农素和纯植物源药剂能大大降低烤烟病指,降幅达76.1%。防治烤烟青枯病病害损失的最优组合为:选用抗根茎病品种,将600 g/hm2奇农素、600 kg/hm2纯植物源药剂及噻菌铜3种药剂形成复合药方制剂,于移栽后20 d、青枯病高发期前进行2~3次叶面喷施和灌根。
In order to explore a more effective method for preventing and controlling bacterial wilt in flue-cured tobacco field, the control effect of singanin and pure plant-derived agent combined with thiabendiam on the control of bacterial wilt and the economic effect on tobacco leaf blight were investigated through multi-year field experiments . The results showed that the application of odd agricultural and pure plant-source drugs can greatly reduce the disease means flue-cured tobacco, a decline of 76.1%. The optimal combination for preventing and curing the disease damage of flue-cured tobacco leaf wilt was as follows: selecting anti-rhizome disease cultivars, combining 600mg / hm2 singanin, 600kg / hm2 pure plant-derived agent and thiabendiocarb, 20 days after transplanting, 2 or 3 foliar sprays and rooting were carried out before the high incidence of bacterial wilt.