氮肥运筹对云烟87不同叶位碳氮积累的影响

对不同施氮条件下烤烟品种云烟87不同叶位碳氮积累进行系统研究，以期探索氮肥运筹对烤烟不同叶位碳氮平衡的影响。结果表明，A、B处理总氮含量随叶位降低呈先降低后升高趋势；B处理在低叶位总氮含量显著高于A处理，而高叶位则相反。A、B处理叶位1至叶位7总碳含量显著高于其他叶位，在叶位8至叶位16之间碳含量随着叶位降低呈显著或极显著降低。A、B处理碳氮比以中部叶位最高，其次为下部叶位，上部叶位最低；上部叶A、B处理的碳氮比随叶位降低而显著升高，中部叶之间差异不大，下部叶位则随着叶位降低而降低；B处理上部叶位及靠近上二棚中部叶位碳氮比显著高于A处理，下部叶位及靠近下部叶中部叶变化则与之相反。由此可见，B处...

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Published in广东农业科学 Vol. 42; no. 22; pp. 11 - 16
Main Author 谭宏祥 谢昌盛 向永光 苏太忠 肖振杰 刘大双 朱英华 徐增汉
Format Journal Article
LanguageChinese
Published 河北中烟工业有限责任公司,河北石家庄,050051%重庆市烟草公司巫溪分公司,重庆,405800%安徽农业大学农学院,安徽合肥,230036%中国科技大学烟草与健康研究中心,安徽合肥,230052 2015
Subjects
氮
氮肥
烤烟
碳
碳氮比
氮肥
碳
碳氮比
烤烟
氮
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ISSN1004-874X

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Summary:对不同施氮条件下烤烟品种云烟87不同叶位碳氮积累进行系统研究，以期探索氮肥运筹对烤烟不同叶位碳氮平衡的影响。结果表明，A、B处理总氮含量随叶位降低呈先降低后升高趋势；B处理在低叶位总氮含量显著高于A处理，而高叶位则相反。A、B处理叶位1至叶位7总碳含量显著高于其他叶位，在叶位8至叶位16之间碳含量随着叶位降低呈显著或极显著降低。A、B处理碳氮比以中部叶位最高，其次为下部叶位，上部叶位最低；上部叶A、B处理的碳氮比随叶位降低而显著升高，中部叶之间差异不大，下部叶位则随着叶位降低而降低；B处理上部叶位及靠近上二棚中部叶位碳氮比显著高于A处理，下部叶位及靠近下部叶中部叶变化则与之相反。由此可见，B处理各个叶位总氮、总碳和碳氮比A处理更符合优质烟叶标准。
Bibliography:44-1267/S
Carbon and nitrogen accumulation at different leaf positions of flue-cured tobacco was studied under different nitrogen conditions in order to explore effects of nitrogen application on carbon and nitrogen balance of different leaf positions. Results showed that the total nitrogen content decreased with the drop of leaf position firstly, then rose with the further drop of leaf position in A treatment （ N 97.5 kg/hm2 ） and B treatment （ N 112.5 kg/hm2 ） . The total nitrogen content of B treatment was significantly higher than that of A treatment at low leaf position, but the trend was reversed at high leaf position. The carbon content was significantly higher from the first leaf position to the 7th leaf position than that of other leaf positions. The carbon content decreased significantly or extremely with the drop of leaf position from the 8th leaf position to the 16th leaf position. The carbon/nitrogen （ C/N ） was the highest in cutters, secondly low leaf positions, the lowest content was at upper l
ISSN:1004-874X