为了解和评价梅县烟区生态烟叶种植条件的安全性及烟叶内在品质是否满足"贵烟"品牌的需求, 对梅县烤烟种植基地的土壤、灌溉用水进行重金属检测和污染指数分析;对烟叶样品进行农药残留、化学成分及内在感官鉴定.结果表明:土壤样品中6种重金属 (镍, 铬, 汞, 铅, 镉, 砷)含量均低于国家一级土壤限量标准, 各项重金属单项污染指数均小于1;灌溉用水6种污染物含量指标均低于国家农田灌溉水污染物标准, 其各项污染指数值均小于1;烟叶农药残留种类较少, 且残留量小, 远低于国家农残限量标准限值;与常规烟叶相比, 生态烟叶化学成分更为适宜, 协调性好;内在感官品质也更为优异.梅县植烟土壤和灌溉用水属于无污染级别, 其种植条件和生产的烟叶均符合贵烟对优质烟叶的质量和安全性需求.
To evaluate the cultivation safety of ecological tobacco producing areas and internal quality of tobacco leaves based on the demand of Guiyan brand in Meixian base of China Tobacco Guizhou Industrial Limited Company, heavy metals in tobacco-planting fields, pollutant in irrigation water, and pesticide residues in tobacco leaves were analyzed and evaluated.The results showed that 6 heavy metals in soil samples were lower than that in the soil environmental standard of First Grade, while 6 pollutants in irrigation water were lower than that in the sewage irrigated water criterion.In the tobacco samples, pesticide residues were detected in a few tobacco samples, and the pesticide residues were far below the limit levels.Meanwhile, according to the smoking quality of cured tobacco leaves from Meizhou areas, the smoking quality was relatively good in Meixian.In conclusion, Meixian has good eco-adaptability of tobacco planting, which can meet the requirements of the quality and safety of Guiyan brand towards to high tobacco quality.