Study on Control Effect of Different Soil Conditioners on Tobacco Root and Stem Diseases and Tomato Spotted Wilt Virus
- Received Date: 18/09/2022
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Key words:
- tobacco root and stem disease /
- tomato spotted wilt virus /
- disease control /
- soil amelioration /
- biological control
Abstract: Huidong County of Liangshan Prefecture in Sichuan Province is the main production of high quality flue-cured tobacco in China, but in recent years, the occurrence of tobacco root and stem diseases and spotted wilt virus caused many adverse effects on the production of good quality tobacco leaf. Therefore, it is necessary to explore the key disease control technologies to realize the health cultivation of tobacco plant and ensure high quality flue-cured tobacco. In this study, a field plot experiment was conducted to explore the effects of soil high temperature disinfection, soil improvement with understory nutritive soil, biological control and chemical control on tobacco black shank disease, root black rot, bacterial wilt and tomato spot wilt virus, as well as their effects on tobacco plant growth in Huidong County. The results showed that soil high temperature disinfection, understory nutrient soil with biological agent and fubol wettable powder treatment had certain control effects on tobacco root and stem disease and tomato spot wilt virus in the field, with the highest control effects of 44.26%, 61.93% and 53.87%, respectively. Soil disinfection combined with understory nutrient soil and bio-bacterial agent can effectively improve the effect of disease control, and the highest control effect on tobacco root disease and tomato spot wilt disease can reach 74.67% and 68.33%, respectively. This study explored the appropriate control methods for tobacco root and stem disease and tomato spot wilt virus in Huidong area, which provided reference for healthy cultivation, green disease control and high-quality production of tobacco.