烤烟间套作草木樨和甘薯对烟叶含钾量及烟草病毒病的影响

通过田间试验，研究了烤烟与甘薯套种、烤烟与黄花草木樨间种控制烟草病毒病（烟草普通花叶病和烟草蚀纹病毒病等）的控制效果。研究结果表明：烤烟间种草木樨和烤烟套种甘薯的处理不同程度地减轻了烟草病毒病的危害，特别是对烟草普通花叶病和烟草蚀纹病毒病的防治效果极显著，防治效果分别达到77.24%、77.86%和80%、100%，从而提高了烟草产量和品质。间套作处理的较单作相比，烟叶含钾量提高了0.05%~0.92%。

Effects of Flue-cured Tobacco and Sweet Clover and Sweet Potato Intercropping on Leave Potassium Contents and Virus Diseases Occurrence of Tobacco

The field experiments were conducted to study the effects of tobacco and sweet potato intercropping, tobacco and sweet clover intercropping on leaves potassium content and virus diseases occurrence of tobacco. The results showed that the intercropping practice could reduced tobacco virus disease occurrence; especially tobacco mosaic virus(TMV)tobacco etch virus (TEV).The occurrence of TMV, TEV decrease by 77.24%~83.1% , 80%~100% respectively in intercropping in comparison with that of monocropping. Leave potassium contents of tobacco increased by 0.05%~0.92% in intercropping in comparison with that of monocropping.