针对2013年云南陆良基地的烟叶样品出现燃烧性不良的问题,2014～2015年从陆良的龙海与芳华基地取土壤、灌溉水与烟叶样品进行实验室分析,结果表明,陆良基地土壤氯含量都在正常范围之内,全部样品氯含量均未超过45 mg/kg的上限标准。检测结果还表明,灌溉水源氯含量较高,芳华龙潭村样品含量达到138 mg/kg。烟叶氯含量检测结果显示,2014年和2015年陆良基地3个部位烟叶样品(X2F、C3F和B2F)氯含量正常的(0.3%～0.8%)占75.01%,偏低的(<0.3%)占10.41%,偏高的(>0.8%)占14.58%,对照马龙县基地样品在正常范围内。烟叶样品钾含量2014年在2%以上的样品为8.33%,在1～2%的样品为91.67%,2015年2%以上的样品为25%,1～2%的样品为75%。2年的分析数据显示,多数样品钾氯比值偏低(在4以下),其主要原因是烟叶钾含量偏低,个别样品是氯含量高,因此未来烟叶生产应注意钾肥的使用和提高钾肥利用率。

The combustibility of tobacco leaf samples from Luliang production area (Luliang County of Yunnan Province) in 2013 was not good. To analyze this problem, soil, irrigation water and tobacco leaf samples were taken from the Luliang production area in 2014 and 2015. The samples were tested in laboratory. The results indicated that the chlorine content in all soil samples was in the normal level, and did not exceed the upper limit which is 45 mg/kg. The test results also showed that the chlorine content in irrigation water samples was higher than upper limit. One sample from Longtan village reached 138 mg/kg. The chlorine contents in tobacco leaf samples of X2F, C3F and B2F in 2014～2015 indicated that 75.01% samples was among normal range (from0.3% to 0.8%), 10.41% was below normal (<0.3%), 14.58% was above normal (>0.8%). The chlorine content of control samples from Malong was in the normal range. In 2014 the analysis results found that the potassium content of8.33% samples was higher than 2%,91.67%samples was among 1～2%. And in 2015, the potassium content of 25% samples was over 2%, 75%samples was among 1～2%.The analyzed data of the two years indicated that the ratio of potassium to chlorine in most samples was lower than 4. The main reason is that the potassium contents of tobacco leaves are lower. On the other hand several samples had higher chlorine contents which resulted in lower ratio of potassium to chlorine. In future tobacco production, we should pay great attention to using potassium fertilizer and increase the efficiency of potassium fertilizer.