微量活性物制剂对烤烟上部叶主要质量性状的影响

[目的]为有效解决我国烤烟上部叶的"大、深、厚"问题,提高其工业可用性。[方法]在烟叶不同生育期喷施微量活性物制剂"烟博士"。[结果]试验得出,在打顶期及其后10 d左右喷施微量活性物制剂,可以使烤烟上部叶的叶宽平均增加18.2%,采收时间延长6 d左右,烟叶产量提高3.8%,上等烟比例增加5.3%,产值增加20.4%,烟叶总氮含量相对降低17.2%,烟碱含量相对降低10.9%,钾含量相对提高47.0%。[结论]微量活性物制剂可提高烟叶田间耐熟性,同时使烤后烟叶化学成分含量协调,控氮降碱,增进烟叶内在品质效果明显,适宜于生产上推广应用。

Effect of Micro-active Agents on Main Quality Character of Flue-cured Tobacco Leaf

[Objective] The problem of "big,dark and thick tobacco leaf" at the upper part of flue-cured tobacco in China could be solved to improve the availability in the industry through the experiment.[Method] The trace-active agent(Yanboshi) was sprayed on the leaves in the different growth stages.[Results] The experimental result indicated that in the period of topping stage or 10 days later,the application of the agent could make average leaf width at the upper part of flue-cured tobacco increased 18.2% and 6 days of harvest time was prolonged so that the tobacco production could raise 3.8%,the proportion of first-class tobacco leaf raised 5.3% with the production value of more than 20.4%.Total nitrogen content in leaf relatively lowered 17.2%,the nicotine content,10.9% and the potassium content enhanced relatively 47.0%.[Conclusion] The micro-active agents in the field of tobacco could increase the tolerance of maturity,the chemical composition of tobacco content was in co-ordination with the nitrogen-controlling and alkali-lowering for the improvement of internal quality of tobacco.The technique was suitable for the application in production.