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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (7): 414-417.

所属专题： 烟草种植与生产

• 食品 营养 检测 安全 • 上一篇    下一篇

湖南烤烟主产区中部烟叶总氮含量区域特征

陈卫国 邓小华 卿国林   

  • 收稿日期:2010-08-11 修回日期:2010-09-01 出版日期:2011-04-05 发布日期:2011-04-05

Total Nitrogen Contents of Cutters Flue-cured Tobacco Leaf in Hunan Tobacco-Growing Areas

  • Received:2010-08-11 Revised:2010-09-01 Online:2011-04-05 Published:2011-04-05

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摘要：

为进一步了解湖南主产烟区烤烟总氮含量的区域特征，采集湖南烤烟主产区中部烟叶样本315份，通过采用连续流动法测定烟叶总氮含量，分析湖南烤烟中部烟叶总氮含量的区域特征。结果表明：湖南烤烟主产区中部烟叶总氮含量均值为1.93%，其中含量小于1.5%的样本占3.40%，中部烟叶总氮含量适中；烟叶总氮含量年度间存在极显著差异，主栽的3个品种、3个生态区域间烟叶总氮含量不存在统计学上的差异；烟叶总氮含量在空间分布上有从东向西逐渐递减的趋势。湖南烤烟总氮含量处于适宜水平，不同烟区间差异不大，年度间的差异要引起重视。

关键词: 面源污染, 面源污染, 径流, 人工湿地, 温室气体

Abstract:

A total of 315 cutler flue-cured tobacco samples were collected from main tobacco-growing areas in Hunan, and their total nitrogen contents were determined by continuous flow method to study the regional characteristics of the total nitrogen content. The results showed that the means of total nitrogen contents in cutter flue-cured tobacco leaf were 1.93%. The samples with total nitrogen content under 1.5% accounted for 3.40% of the total. The total nitrogen content in cutler tobacco leaf was moderate in Hunan. There was not statistical difference in 3 main cultivars and in 3 ecological areas. The spatial variance trend of the total nitrogen contents decreased gradually from the high total nitrogen content areas of east to west in Hunan.