烟草专用植物营养调节剂对烤烟产质量的影响

于2012~2014年在凉山烟区会理县、德昌县、冕宁县开展烟草专用植物营养调节剂试验，以期探明植物营养调节剂对烤烟产质量的影响，为烟叶生产提供指导。结果表明：在3县施用烟草专用植物营养调节剂的烟田，烟叶生育期比常规对照处理缩短；植物学性状，包括株高、茎围、最大叶长、最大叶宽、节距、叶片数都优于对照；且施用烟草专用植物营养调节剂后，烤烟产量、产值、上中等烟比例都比对照有明显增加，烤后烟叶化学成分更加协调。

Effects of Tobacco-dedicated Plant Nutrition Regulators on Yield and Quality of Flue-cured Tobacco Leaves

During 2012-2014, field trials were carried out in Huili County, Dechang County and Mianning County of Liangshan Yi Autonomous Prefecture to investigate effects of tobacco-dedicated plant nutrition regulators on yield and quality of flue-cured tobacco leaves, aiming at providing reference for tobacco production. Accord-ing to the results, in tobacco fields applied with tobacco-dedicated plant nutrition regulators, growth period of tobacco was shortened compared with control group;botanical characters (plant height, stem girth, the maximum leaf length, the maxi-mum leaf width, internode length and leaf number) were superior to control group;after application of tobacco-dedicated plant nutrition regulators, yield, output value and the proportion of high-grade and middle-grade leaves were significantly im-proved compared with control group; moreover, flue-cured tobacco leaves exhibited more coordinated chemical composition.