影响陆良基地烟叶燃烧性的原因分析

Influencing Factors of Combustibility of Tobacco Leaves Produced in Luliang

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 YunnanProvince） in 2013 was not good. To analyze this problem, soil, irrigation water and tobacco leaf samples weretaken from Luliang production area in 2014 and 2015, and tested in laboratory. The results indicated that thechlorine content in all soil samples was of normal level, and did not exceed the upper limit which was 45 mg/kg.The test results also showed that the chlorine content in irrigation water samples was higher than the upperlimit. One sample from Longtan village reached 138 mg/kg. The test showed that in tobacco leaf sample X2 F,C3F and B2 F in 2014-2015, the chlorine content of 75.01% samples was in a normal range（from 0.3% to0.8%）, the chlorine content of 10.41% samples was below normal（0.3%）, and the chlorine content of14.58% samples was above normal（〉0.8%）. The chlorine content of control samples from Malong was in thenormal range. In 2014 the analysis results found that the potassium content of 8.33% samples was higher than2%, and that of 91.67% samples was in 1%-2%. And in 2015, the potassium content of 25% samples was over2%, and that of 75% samples was in 1%-2%. The analysis of the two years data indicated that the ratio ofpotassium to chlorine in most samples was lower than 4. The main reason was that the potassium content oftobacco leaves was relatively low. On the other hand, several samples had higher chlorine content whichresulted in lower ratio of potassium to chlorine. In future production, we should pay attention to the applicationof potassium fertilizer and increasing the efficiency of potassium fertilizer.