攀枝花烟区烤烟小苗育苗技术研究

摘要

Objective] This study almed to expIore a suitabIe fIue-cured tobacco young seedIings cuItivation technique for tobacco-producing areas in Panzhihua. [Method] The randomized bIock design was used to conduct a two-factor test of fIoating pate and seedIing age. [Result] The young seedIings cuItivation technique re-duced the cuItivation cost by 76.6%; the optimum seedIing age was 45 d; the fIoat-ing pIate with specification of 595 hoIes/pIate couId best improve the cuItivation effi-ciency; and the Ieaf-uncut young seedIings cuItivation technique significantIy reduced the incidence of disease in tobacco pIants. In short, the production benefit of young seedIings cuItivation technique is significantIy higher than that of conventional tech-nique. [Conclusion] Referring to the young seedIings cuItivation techniques in Guizhou and Yunnan and according to the actual situation in tobacco-producing ar-eas of Panzhihua, the fIue-cured tobacco young seedIings cuItivation technique, which was suitabIe for tobacco-producing areas of Panzhihua, was deveIoped. This cuItivation technique can be used to provide tobacco seedIings for under-fiIm cuItiva-tion. In addition, it wiI provide a reference for reducing cuItivation costs, reducing environmental destruction, reducing incidence of disease and improving production efficiency of tobacco Ieaves.%[目的]为研究出适合攀枝花烟区的烤烟小苗移栽育苗方式。[方法]试验采取随机区组设计，开展不同漂盘和不同苗龄两因素试验。[结果]小苗育苗方式降低育苗成本76.6%；45 d的苗龄是最佳的小苗育苗苗龄；595穴/盘的漂盘规格最能提高育苗效率；不剪叶的小苗育苗方式极大地降低了烟株病害发生率；小苗育苗方式生产效益明显高于常规漂浮育苗方式。[结论]结合贵州、云南等地小苗移栽技术和攀枝花烟区的实际情况，总结出攀枝花烟区烤烟小苗移栽育苗方式，为小苗膜下栽培提供育苗方法，同时也是进一步寻求降低育苗成本、减少环境破坏、减少病害发生率、提高烟叶生产效益的新方法。