Healthy Cultivation Technology Scheme of Tobacco Based on Chillingresistance Inducing and Precision Medicine
In Dehong Prefecture,Yunnan Province,the problem of chilling on tobacco was prominent,which seriously affected the early growth,the disease resistance and reverse of to-bacco plants.The occurrence of tobacco bacterial wilt disease and virus disease also had a great adverse effect on the yield and quality of tobacco leaves in Dehong.There is an urgent need for a feasible,effective and reliable technical solutions to serve the healthy cultivation of tobacco in Dehong.Aiming at solving the lack of integrated technology system of chilling managing and disease control in Longchuan County,Dehong Prefecture,this study formulated a technical scheme of plant protection in the whole process of tobacco healthy cultivation and the effect of the scheme was investigated.The results showed that the program could effectively alleviate the chilling,and significantly promote the root development,the fresh weight of root development of tobacco plants in the treatment area was significantly increased by 41.16％after 20 days of transplantation,while the plant height,stem circumference and maximum leaf area in the treat-ment fields were increased by 26.28％,43.72％and 32.15％,respectively,compared with the control fields.The control effectiveness of tobacco bacterialwiltdisease,black shank disease,potato Y virus disease and common Mosaic virus disease in the field were 34.05％,83.72％,84.25％and 73.33％,respectively.Moreover,the output value of tobacco increased by 579.20 yuan/667 m2,while the investment of disease control agents was saved by 84 yuan/667 m2,and the income increase rate reached 15.53％,which had obvious effect of disease control and in-come increase,and provided a reference for risk management of chilling managing and disease control in Dehong.
tobaccochillinghealthy cultivationprecision medicinewhole process of plant protection
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