Study On Breeding And Cultivation Techniques Of Filling Of Flue Cured Tobacco Material In Linli

Based on the different demands of filling of flue cured tobacco to materials,this study started directional cultivation techniques of tobacco in four towns in Linli. It separately did researches from the selection of species, topping, fertilizing and planting density, which made great effects on growth and development, chemical quality and economical characters of filling of flue cured tobacco. The results show that:1、For Taihu township, the variety of YZ-20-6is great based on its different aspects results, because it has few influences on local fertilization and available nutrients. What’s more, Agronomic traits are rather balanced, and leaf spot incidence is low. After flue-cured this kind of tobacco, the length, width and wight of leaves are generally kept in high level, but alkali content is low. Chemical compositions are also in appropriate rage. The weight of coordination points is82.53points, which becomes the highest in all and production is168.2kg/667m2. The proportion, output value and average price of the middle and upper tobacco are significantly higher than the others tested.2、For Chener township, it is better to implemented twice topping as its method for improving height and the number of leaves, and stem ratio is kept low. Besides, the three parts of leaves tobacco includes low alkali content. As to the production, it is174kg/667m2and the output value is2828.5RMB/667m2, among of which the first-class tobacco is over51.5%with a price of16.2RMB/kg.3、For Bozhi township, according to all fertilization studies, pure nitrogen with8.08kg/667m2, based fertilization specifically for tobacco with75kg/667m2, and potassium nitrate with21kg/667m2are the better choice. Under this condition, the changing trend of available nutrients of tested soil is great with more land bigger leaves. Through flu-cured, single leave’s weight, length and width of C3F tobacco are much higher than other conditions. In addition to that, each part of this kind tobacco keeps low alkali content while production, output value, average price and the upper-class ration are obviously higher.4、For Chenjia township, based on all planting density experiments that when row space is0.50m, equals to111/acre, the results are much better as the following:the tobacco plants grow well with low risk of disease, and leaves stay in good development with having reasonable growth period. Except for that, low alkali content in all parts of tobacco is also kept, and output value is2680.9RMB/667m2, far higher that other treatments.