不同生态区烤烟最佳移栽期优选研究

目的]寻求适宜于天柱县不同生态区烤烟的最佳移栽期,为开发天柱特色烟叶提供依据。方法]在天柱县不同生态区进行小区对比试验,设4个移栽时期:4月15日、4月22日4、月29日、5月6日,研究不同移栽时期对烟株农艺性状、烟叶产量及产值的影响。结果]4个移栽时期对烟株生长及农艺性状的影响不大。4月15日移栽的烟叶产量最高,其次是4月22日;4月22日移栽的烟叶产值最高,其次是4月15日;4月22日移栽的烟叶均价最高,其次是4月29日。5月6日移栽的烟叶产量、产值最低。结论]天柱县烤烟最佳移栽时期为4月22日左右,这时期移栽的烤烟经济效益最高,过早或过晚移栽则影响烟叶品质,降低烟叶的经济效益。

Preliminary test of Best Transplanting Period Optimization on tobacco in Different Ecological Regions

Objective] The purpose was to seek the best transplanting period for flue-cured tobacco,which was suitable to different ecological regions in Tianzhu County,and provide the basis for development of Tianzhu characteristic tobacco.Method] The plot contrast test was carried out in different ecological regions of Tianzhu,4 transplanting periods were set up: April 15,22 and 29 and May 6,the effect of different transplanting periods on agronomic characters of tobacco plant,tobacco yield and production value was studied.Result] The 4 transplanting periods had no much influence on tobacco plant growth and agronomic characters.The yield of tobacco leave that was transplanted on April 15 was the highest,next was that of April 22,the production value of tobacco transplanted on April 22 was the maximal,and following was that on April 15.The average value of tobacco transplanted on April 22 was the highest,and the next was that on April 29.The yield and production value of tobacco transplanted on May 6 were the lowest.Conclusion] The best transplanting date of flue-cured tobacco in Tianzhu was about April 22,on which,the economic benefit of flue-cured tobacco transplanted was the maximal,early or later transplanting might affect tobacco quality and reduce the economic benefit of tobacco.