Studies On Impact Of Transplanting The Flue-cured Tobacco Yield And Quality In Yongzhou

The tobaeeo transplantingtime is the essentiallink of tobacco produetion, transplanting time differently,the climations in flue-eured tobacco growth period are different, so the tobaceo growth and output have difference. Study on tobacco growth and development characteristics under different transplanting, and quality of flue-cured tobacco and climatic conditions in relation to promoting tobacco early fast, improving the maturity of tobacco leaf, thereby improving inherent chemical components of tobacco, increase the proportion of medium on tobacco and tobacco availability is of great significance. Study of main varieties in Hunan province K326 test materials, study on transplanting on yield and quality of tobacco, focused on the ecological zone in tobacco leaves of different transplanting periods on Yongzhou and agronomic characters of tobacco leaf chemical components of flue-cured tobacco internal effects. The main findings are as follows:(1) Transplanting stage on agronomic characteristics, growth stages and economic traits of study:Xintian along with the seeding time delayed emergence time and other test points of emergence time difference between the small, a difference in three days. LanShan after March 5, each process than March 5 transplant transplant extension period has been prolonged, while the other three pilot sites with transplanting early, rooting with extending the clear trend in the period, With the move of transplanting, flue-cured tobacco-want long-term, mature and during whole growth stages are in the field to extend the trend, all basically the same regularity.Mission points T1 processing integrated better agronomic, T1 and T2 lesser, a late transplanting significantly lower than the amount of T3, T4, T1, T2. Vigorous growing stage agronomic regularity is not obvious, the dome to T2 agronomic advantages more obvious in terms of more tobacco leaf than other treatment, leaf area than other treatment has increased significantly, Tland T2are small differences.Economic characteristics survey results, ningyuan, Xintian to T2 handling of the better performers, LanShan points T1 processing economic character better, different from T1 and T2 are small differences.(2) Transplant period on chemical components effect of research indicates that:all processing tobacco chemical components of changes no obvious of regularity, integrated view, transplant period ahead of, seems to has increased nicotine content, reduced tobacco sugar alkali than coordination sexual of trend, this may is because all community test in mining roasted Shi to convenient operation, all community picking, and baking while for, led transplant ahead of of processing playing top Hou tobacco in field growth time more long, makes tobacco of nicotine synthesis has increased of trend. Comparison of various chemical ingredients, Xintian, Ningyuan points in addition to T1 high nicotine content, other processing leaf chemical components in the appropriate range.