江西农业学报2026，Vol.38Issue(3)：10-17,8.DOI:10.19386/j.cnki.jxnyxb.2026.03.002
不同海拔区域施氮量对湘烟7号烟叶质量及氮素利用率的影响
Effects of Different Nitrogen Application Rates on Tobacco Leaf Quality and Nitrogen Use Efficiency of Xiangyan 7 at Different Altitudes
摘要
Abstract
Field experiments were conducted at 300 m,600 m and 900 m altitudes in Zhangjiajie,and four nitrogen application rates of 120 kg/hm2(N1),135 kg/hm2(N2),150 kg/hm2(N3)and 165 kg/hm2(N4)were set,with no fertilization treatment(N0)as the blank control.The impact of different nitrogen application rates on the agronomic traits,economic traits,quality of cured leaves and nitrogen use efficiency of Xiangyan 7 tobacco was explored at the three altitudes.The results showed that,the agronomic traits and dry matter accumulation,yield and output value of tobacco plants generally increased with the increase of nitrogen application rate under N1～N4 treatments.There was no significant difference in appearance quality.The sensory quality decreased with the increase of nitrogen application rate.The treatments of N2～N3 had better chemical composition coordination in all three altitude regions.In conclusion,the suitable nitrogen application rate for Xiangyan 7 in Zhangjiajie tobacco region can be 135～150 kg/hm2.关键词
湘烟7号/施氮量/氮素利用率/海拔/烟叶质量Key words
Xiangyan 7/Nitrogen application rate/Nitrogen use efficiency/Altitude/Tobacco leaf quality分类
农业科技引用本文复制引用
王振华,徐经年,任四海,朱俊俊,赵凯,吕超,王子宸,赵子璟,唐经祥..不同海拔区域施氮量对湘烟7号烟叶质量及氮素利用率的影响[J].江西农业学报,2026,38(3):10-17,8.基金项目
湖南省烟草公司张家界市公司科技项目(202301). （202301）
