膜上烟和膜下烟移栽对烤烟生长发育及烟叶品质的影响

为了解决调整生育期是否对烟叶产质量产生影响的问题，以‘K326’为试验材料，采用膜上、膜下移栽的方法对烟叶产质量进行研究。结果表明：膜下烟移栽虽然可以提早移栽期，但是烟叶成熟时间提前却很少，膜下膜上移栽对烟株的生长发育、植物学性状及烤后烟叶的经济效益、烟叶质量等的影响不大，但是膜下烟移栽用工却增加不少，所以还是以3月上旬膜上移栽方式较为适宜。

The Influence of Tobacco Seed Transplanting Above Plastic Mulching and that under Plastic Mulching on the Growth of Flue-Cured Tobacco and the Quality of Tobacco Leaf

A research taking ＇ K326＇ as experimental material was conducted by means of transplanting under and above plastic mulching in order to analyze whether the adjusting of growth period had influenced on the yield and quality of tobacco. The result showed that though transplanting under plastic mulching could advance the transplanting time, the ripening time of tobacco enjoyed little time ahead. Besides, transplanting under or above plastic mulching didn＇t have much impact on the growth and botanical traits of tobacco plants, as well as the economic benefits and quality of the cured tobacco leaves. But transplanting under plastic mulching cost much more labors. So the choice of transplanting above plastic mulching in early March was preferred.