氮素用量对烟叶根系生长及产质量的影响  

Effects of Nitrogen Application on Root Growth,Yield and Quality of Tobacco Leaves

作　　者：阎轶峰[1] 胡焕亮 汪文杰 姜超强[1] 沈嘉[1] 赵第锟[1] 祖朝龙[1] 周初跃[3] YAN Yi-feng;HU Huan-liang;WANG Wen-jie(Tobacco Research Institute,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031;Anhui Tobacco Company Chizhou Company,Chizhou,Anhui 247009)

机构地区：[1]安徽省农业科学院烟草研究所,安徽合肥230031 [2]安徽省烟草公司池州市公司,安徽池州247009 [3]安徽中烟工业有限责任公司,安徽合肥230031

出　　处：《安徽农业科学》2023年第21期161-163,200,共4页Journal of Anhui Agricultural Sciences

基　　金：安徽省烟草公司科技项目(20170551008,20180551009);安徽中烟工业有限责任公司科技项目(2021137,2022136)。

摘　　要：[目的]研究不同施氮量对烟叶根系发育及烟叶产质量的影响。[方法]采用盆栽试验法,以云烟87为材料,检测了盆栽烤烟根系发育、农艺性状、化学成分、产量和品质等指标。[结果]施氮量105 kg/hm~2处理烟叶根系长度、根系表面积、根尖数最大,根系平均直径较小。随着施氮量增加,产量和产值增加;施氮量105 kg/hm~2中上等烟比例较高、均价较高。施氮量增加,上部叶的烟碱含量增加;施氮量105 kg/hm~2处理烟叶的刺激性较小,烟气较为柔和,可用性较好。[结论]施氮量105 kg/hm~2能够提升烟叶烟碱含量,有效提高烟叶产质量和品质,是皖南烟区云烟87较优的施氮量。[Objective]To verify the effects of different nitrogen application rates on root development,yield and quality of tobacco leaves.[Method]Taking Yunyan 87 as test variety,the indexes of root development,agronomic characters,chemical composition,yield and quality of flue-cured tobacco were detected with pot experiment.[Result]The root length,root surface area and root tip number were the largest and the average root diameter was smaller in the treatment of nitrogen application rate of 105 kg/hm 2.With the increase of nitrogen application rate,the yield and output value increased;the proportion of medium and high-grade tobacco was higher and the average price was higher when the nitrogen application rate was 105 kg/hm 2.The nicotine content of upper leaves increased with the increase of nitrogen application;the treatment of 105 kg/hm 2 nitrogen application had less irritation,softer smoke and better availability.[Conclusion]The nitrogen application rate of 105 kg/hm 2 could increase the nicotine content of tobacco leaves and effectively improve the yield and quality of tobacco leaves.It was the better nitrogen application rate of Yunyan 87 in Southern Anhui Province.

关 键 词：烤烟 施氮量 产质量 烟碱含量 感官质量 根冠比 

分 类 号：S572[农业科学—烟草工业]