摘要
为促进烤烟新品种云烟97的推广应用,采用田间小区试验,研究了不同施氮量(不施肥、6 g/株、8 g/株、10 g/株)对云烟97氮素吸收利用以及产质量的影响。结果表明,施氮量不仅影响烟株各部位氮素的含量,也影响氮素在烟株各部位的分配和转运。随着施氮量的增加,中部叶和下部叶氮的分配率降低,相同部位烟叶氮和烟碱含量增加,总糖、还原糖含量和糖碱比呈下降趋势。氮量、烟叶部位以及二者之间的交互作用对烟叶内在化学成分均有影响。综合考虑产量、产值因素以及烟叶中的化学成分含量,在试验区域内,确定云烟97的最适施氮量为8 g/株。
To accelerate the commercial use of new flue-cured tobacco variety Yunyan97,field experiment was performed to study the effect of different nitrogen fertilizer rate on the nitrogen uptake and utilization,and the growth,yields and quality of Yunyan97.The results showed that the nitrogen content,absorption,distribution and transport were affected by nitrogen rate.With the increase of nitrogen rate,the proportion of nitrogen distribution in lower leaves and cutters declined,and the contents of nicotine and nitrogen of cured leaves from the counterpart increased,while the content of total sugar,reducing sugar and the ratio of sugar to nicotine decreased.The leaf position,the nitrogen application rate and their interaction affect the contents of chemical components.It is suggested that the optimal nitrogen application rate of Yunyan97 is 8 g N per plant,considering the factors of yields,production value and chemical components of tobacco leaves.
出处
《中国烟草科学》
CSCD
北大核心
2010年第6期41-45,共5页
Chinese Tobacco Science
基金
云南省科技厅攻关项目(2006NG07)
中国烟草总公司云南省公司科技项目(06A01)
关键词
烤烟
云烟97
氮肥
产量
质量
化学成分
flue-cured tobacco
Yunyan97
nitrogen fertilizer
yield
quality
chemical component
