江西农业学报2025，Vol.37Issue(2)：51-58,8.DOI:10.19386/j.cnki.jxnyxb.2025.02.008
施氮量与留叶数互作对红花大金元上部叶质量和可用性的影响
Effects of Nitrogen Application Rate and Leaves Left on Leaf Quality and Availability in Upper Leaves of Honghuadajinyuan
摘要
Abstract
In order to explore the effect of the interaction between nitrogen application rate and leaf retention rate on the quality and availability of upper leaves of Honghuadajinyuan,a two-factor field experiment was set up,with nitrogen application rates of 90,108 and 126 kg/hm2,and leaf retention number of 16,18,20 and 22 leaves/plant,a total of 12 treatments.The results showed that under the same number of leaves left,with the increase of nitrogen application rate,the yield and output value of the upper leaves increased,the contents of nicotine,total nitrogen and potassium increased,the sugar-alkali ratio decreased,and the total score of sensory quality at the medium nitrogen application rate was relatively high.Compared with the low nitrogen treatment,the contents of various aroma components and the total amount of aroma components in the medium and high nitrogen treatment increased to varying degrees.At the same nitrogen application rate,with the increase of the number of leaves left,the single leaf weight and yield of the upper leaves decreased significantly,the proportion and average price of superior tobacco increased first and then decreased,the contents of nicotine,total nitrogen and chlorine decreased,the contents of total sugar,reducing sugar and potassium increased,and the ratio of sugar to alkali and potassium to chloride increased significantly.The total amount of aroma components,the contents of new phytodiene and carotenoid degradation products decreased with the increase of the number of leaves left per plant,while the contents of non-enzymatic browning reaction products,phenylalanine cleavage products and lanthus ketones increased.At medium and high nitrogen application levels,the total sensory score of 18 leaves per plant was the highest.The interaction between the two had a significant impact on the economic traits,physical properties,chemical composition and content of some aroma substances in the upper leaves,and the nitrogen application rate of 108 kg/hm2 and the number of leaves left were 18 leaves/plant,which was a more reasonable combination of cultivation techniques,and the upper leaves had high production value,excellent sensory quality,sufficient neutral aroma substances,and high industrial availability.关键词
红花大金元/施氮量/留叶数/上部叶/质量Key words
Honghuadajinyuan/Nitrogen application rate/Number of leaves left/Upper leaf/Quality分类
农业科技引用本文复制引用
王德勋,刘心亚,李娟,赵园园,夏玉兰,杨帆,赵东杰,史宏志..施氮量与留叶数互作对红花大金元上部叶质量和可用性的影响[J].江西农业学报,2025,37(2):51-58,8.基金项目
中国烟草总公司2021年度"揭榜挂帅"项目(110202103016) （110202103016）
中国烟草总公司云南省公司科技项目(2022530000241015) （2022530000241015）
广西中烟工业有限责任公司项目(2021450000340021). （2021450000340021）
