江西农业学报2025，Vol.37Issue(12)：39-48,10.DOI:10.19386/j.cnki.jxnyxb.2025.12.006
不同栽培措施对高海拔烟区云烟叶片生长及其质量的影响
Effects of Different Cultivation Measures on Growth and Quality of Yunyan Leaves in High-altitude Tobacco-growing Areas
摘要
Abstract
To investigate the effects of different cultivation measures on growth and quality of leaves at various positions on Yunyan tobacco plants in high-altitude tobacco-growing areas.A three-factor,three-level orthogonal experiment was conducted including nitrogen application rates(90,105 and 120 kg/hm2),planting densities(12810,13980 and 15375 plants/hm2),and leaves retained per plant(18,20,and 22).The impacts of different cultivation measures on agronomic traits,dynamic leaf area development,leaf area index(LAI)and sensory quality of cured leaves were analyzed.The results showed that nitrogen application rate had significant positive correlations with plant height,stem girth and maximum leaf length.The increase of nitrogen application accelerated lower leaf area expansion rate and shifted the position of maximum leaf area downward,enhanced smoke intensity but caused aromatic quality and smoothness to initially increase then decrease.Planting density exhibited a negative correlation with leaf width and was the dominant factor influencing LAI.Higher planting densities reduced maximum leaf width,decreased leaf area in middle-lower positions while increased upper-position leaf area,shifted the position of maximum leaf area upward,and was correlated negatively with total sensory scores.Leaves retained per plant significantly affected only LAI.Total sensory scores first increased then decreased as this parameter rose.In conclusion,nitrogen application significantly promoted flue-cured tobacco growth and accelerated lower leaf expansion.However,excessive nitrogen diminished aromatic quality.The increase of planting density reduced leaf width and total sensory scores,inhibited middle-lower leaf development while promoted upper leaf growth.Comprehensive assessment indicated that the optimal cultivation parameters for Yunyan 87 in Yanyuan County are 120 kg/hm2 nitrogen application,12810 plants/hm2 planting density,and 20 leaves retained per plant.关键词
栽培措施/施氮量/种植密度/留叶数/生长动态变化/高海拔烟区Key words
Cultivation measure/Nitrogen application rate/Planting density/Number of leaves remained/Dynamic growth change/High-altitude tobacco-growing area分类
农业科技引用本文复制引用
LI Zheng,LING Ai-fen,DENG Jia-qiang,SU Zheng-yu,GAO Jun,ZHANG Man-man,ZHANG Song-tao,YE Xie-feng,LI Shu-hong,ZHAO Guo-rui..不同栽培措施对高海拔烟区云烟叶片生长及其质量的影响[J].江西农业学报,2025,37(12):39-48,10.基金项目
四川省烟草公司凉山州公司项目"凉山'清甜香'理想株型培育标准及配套技术研究与应用"(SCYC202310). （SCYC202310）
