移栽期和覆盖方式对烤烟产质量的影响

Effects of Transplanting Time and Filming Ways on Yield and Quality of Flue-cured Tobacco(Nicotiana tabacum L.)

[目的]研究不同移栽期和覆盖方式下土壤水分状况、土壤速效氮含量及烤烟(Nicotiana tabacum L.)成熟期农艺性状和经济性状,提出四川泸州烟区烤烟适宜移栽期和覆盖方式。[方法]供试烤烟品种为当地主栽品种云烟97。移栽期为主区,覆盖方式为副区。移栽期设置5个水平:4月20日,4月25日,5月1日,5月6日,5月11日;覆盖方式设置3个处理:地膜覆盖,稻草覆盖,垄体裸露。小区设3次重复,随机排列。[结果]采取地膜覆盖的方式,在4月25日至5月1日移栽的烟叶团棵期0～20 cm表层土壤水分含量大,速效N含量高,农艺性状综合表现优,经济价值高。[结论]建议泸州烟区在预整地时节进行地膜覆盖,在4月25日～5月1日进行移栽。

[Objective] The purpose was to study the effects of different transplanting timing and filming ways on soil water content,soil available nitrogen content,and tobacco agronomic traits and economic characters at mature stage,and put forward suitable transplanting time and filming way in Sichuan Luzhou tobacco area.[Method] Yunyan97,a local main cultivation variety,was used as the tested tobacco variety.Transplanting time was the main plot,and filming way was the subplot.Transplanting time had five levels： April 20,April 25,May first,May 6,May 11;filming way had three levels： plastic film mulching,straw mulching and no mulching.Random arrangement was used with three repeats of each plot.[Result] The results showed in the treatment of plastic film mulching and transplanting from April 25 to May first,the flued-cured tobacco had a best agronomic traits,economic income and economic characters with higher water content,soil available nitrogen content in the rosette stage.[Conclusion] It is suggested farmer overlay soil with plastic film during soil preparation,and transplant tobacco seedling from April 25 to May first.