The Effect Of Transplanting Period And Transplanting Methods On The Growth,yield And Quality Of Flue-cured Tobacco In Jingzhou County

Different transplanting period have a major impact on the climatic conditions of the yield which the cured tobacco planted.In order to further promote the development of modern model of tobacco of Jingzhou County,coordinate flue-cured tobacco production and climate conditions,explore the potential of timely early planting flue-cured tobacco and improve the quality of flue-cured tobacco,this paper studies the influence of transplanting period and transplanting ways on the growth,development,yield and quality of tobacco.The results are as follows:1.Various processing stages to membrane transplanting on March 23,the longest,for 121 d;April 1 JingJiao type transplanting center,and for the 108 d;April 10 JingJiao type transplanting of the shortest,103 d.2.With the advance of transplanting stage,index of agronomic of the same transplanting process were more worse;agronomic traits indicators in the same transplanting period and different transplanting way showed:JingJiao type transplanting is larger than under the membrane transplanting and membrane transplanting.The agronomic traits of indicators of JingJiao type transplanting on April 10th is the optimal among them.3.Chlorophyll of tobacco in different processes,which April 1 JingJiao type transplanting is highest.4.The root activity of tobacco is as lower as advance of transplanting period in the same transplanting process;in the same transplanting stage,root activity characterized by different transplanting way:JingJiao type transplanting is better than membrane transplanting and under the membrane transplanting.As a result,the root activity of tobacco plant of JingJiao type transplanting on April 1 and JingJiao type transplanting on April 10 have better overall performance.5.As the transplanting in advance,disease rate and disease index of black shank disease,red star disease and mosaic disease have a declining trend,but climate spot disease present a trend of increasing at the same transplanting mode;under the same transplanting period,JingJiao type transplanting and under the membrane transplanting can significantly reduce disease rate of the black shank disease,red star disease and mosaic disease;The resistance to the disease in dealing with the overall performance,JingJiao type transplanting on April 1(is the best,and under the membrane transplanting on April 1 takes the second place.6.JingJiao type transplanting on April 1 is best in economic characters of different processing tobacco,whose average price is 24.03 yuan/kg,the secondary smoke ratio is 92.17%,yield is 2357 kg/hm2 and output value is 56638.71 yuan/hm2.7.comprehensive score of chemical quality of different processing tobacco,under the membrane transplanting on April 1 is 97.31,which is highest;followed by JingJiao type transplanting on April 1,which is 96.98;membrane transplanting on April 10 is lowest,which is 87.88.Above all,comprehensive the growth and development situation of flue-cured tobacco,economic characters and quality,JingJiao type transplanting on April 1 performs best.