贵州省六盘水市烤烟抗旱补水移栽技术研究

目的]探讨六盘水市烤烟抗旱补水移栽技术,为其高产优质栽培提供指导。方法]于2009年采用盆栽试验研究了烤烟移栽初期不同时段水分胁迫对烤烟早发的影响,并在此试验基础上于2010年采用田间试验方法,研究了移栽初期不同浇水量对烤烟生长发育的影响。结果]移栽后第1或3周干旱严重影响烤烟早发,而移栽后第2周干旱可促进根系发育,有利于烤烟早发。移栽后第1和3周各浇水1次,当每次浇水量为2.5或3.0 kg/(株.次)时,烟株的综合表现较优,其均价分别为15.94和16.28元/kg,产值分别为38 337.30和38 442.00元/hm2。结论]该研究可为六盘水市烤烟抗旱补水移栽和适时移栽提供理论依据和技术参考。

Research of Drought-resistance Transplanting with Irrigation of Flue-tobacco in Liupanshui City, Guizhou Province

Objective] The purpose was to discuss the drought-transplanting with irrigation technology of flur-tobacco in Liupanshui City,and provides a guidance for its high yield and high quality cultivation.Method] Pot experiment in 2009 was carried out to study the effects of drought stress in different period on early rapid growth of flue-tobacco,and on this basis,field research was carried out in 2010 to study the effects of different amount of water on the growth and development of flue-cured tobacco.Result] The results showed that drought in the first or the third week after transplanting would seriously affected the early rapid growth of flue-tobacco,and drought in the second week after transplanting would promote root development,which was conducive to their early rapid growth.When water amount were 2.5 or 3.0 kg/plant in the first and the third week after transplanting,plants had better performances,and the average prices were 15.94 and 16.28 yuan/kg,yield values were 38 337.30 and 38 442.00 yuan/hm2 respectively.Conclusion] The study provides a theoretical basis and technical reference for drought-resistance transplanting with irrigation to transplant timely for flue-tobacco in Liupanshui City.