氮肥用量与留叶数对烤烟氮吸收及烟碱含量的影响研究  

Effects of nitrogen application and remained leaves on the N uptake and nicotinc content of flue-cured tobacco.

作　　者：刘泓[1] 熊德中[1] 许茜 

机构地区：[1]福建农林大学资源与环境学院,福州350002 [2]南平市烟草公司,南平353000

出　　处：《中国生态农业学报》2006年第2期85-87,共3页Chinese Journal of Eco-Agriculture

基　　金：福建省烟草公司项目;福建省教育厅项目(JB06211)资助

摘　　要：利用15N示踪技术,试验研究了N肥不同用量和留叶数对烤烟烟叶N吸收、分布及烟碱含量的影响。结果表明,不同施N量及留叶数对烤烟生长发育、干物质累积、N素吸收利用分布及烟碱含量均有明显影响,N素吸收分布很大程度影响烟碱含量,烤烟吸收的肥料N约1/2分布于烟叶部分,且上部叶含量最高,烤烟N素营养对上部叶烟碱的形成及含量有很大影响,控制施N量及留叶数可一定程度降低上部叶N含量,进而影响烟碱含量。By using the 15N technique,the effects of nitrogen application and remained leaves on the N uptake and nicotine content of flue-cured tobacco were studied. The results show that there are observable effects of different nitrogen applications and remained leaves on the tobacco＇s growth, dry matter accumulation, N uptake and distribution, nicotine content. N uptake and distribution affect the nicotine content of tobacco, about half of the fertilizer nitrogen is distributed in the leaves of tobacco and mainly in higher position leaves of tobacco plant. Nitrogen nutrition affects the nicotine content of higher position leaves of tobacco, the control of the nitrogen application and remained leaves can decrease the nitrogen content of the higher position leaves, thus decreasing their nicotine content.

关 键 词：烤烟 N肥用量 留叶数 烟碱 

分 类 号：S572[农业科学—烟草工业] S511.062[农业科学—作物学]