福建农业科技2025，Vol.56Issue(8)：27-35,9.DOI:10.13651/j.cnki.fjnykj.2025.08.005
氮钾配施对湘烟7号生长和烟叶产质量的影响
Effect of Nitrogen Application Combined with Potassium on Growth and Yield Quality of Xiangyan No.7
摘要
Abstract
In order to clarify the law of nitrogen and potassium fertilization of flue-cured tobacco in Weng'an tobacco-growing area,Xiangyan No.7 was used as the test material,and the amount of nitrogen fertilizer and potassium fertilizer were used as the two-factor variables to explore the effects of different nitrogen and potassium fertilizer treatments on the yield and quality of flue-cured tobacco.At the same time,the fuzzy comprehensive evaluation method was used to comprehensively evaluate the appearance quality,physical index,chemical composition and smoking quality of Xiangyan No.7 tobacco leaves under different nitrogen and potassium application,in order to provide reference for the application of nitrogen and potassium fertilizer in Weng'an tobacco production area.The results showed that the quality index of flue-cured tobacco under N3 treatment was higher than that under other treatments.In terms of agronomic traits and economic traits,the high-nitrogen treatment significantly increased the plant height,maximum leaf length,maximum width of blade and the proportion of premium-grade tobacco leaves under different potassium application rates.In terms of appearance quality,the appearance quality index increased with the increase of nitrogen fertilizer content under high-nitrogen treatment,with N3K3 achieving the highest score(80).In terms of chemical composition,the chemical composition usability index of N1K2,N3K2,and N3K3 was higher.In conclusion,the fertilization scheme of applying an additional 15 kg·hm-2 pure nitrogen combined with 20%K2O(N3K3)in Weng'an tobacco-growing areas could improve the agronomic traits of flue-cured tobacco at budding stage,optimize the indicators of economic traits,and obtain the highest appearance quality score,higher physical characteristics score and the most coordinated chemical composition,which had the best effect on improving the economic traits and quality of flue-cured tobacco.关键词
氮钾配施/湘烟7号/生长发育/产质量Key words
Nitrogen-potassium ratio/Xiangyan No.7/Growth and development/Product quality分类
农业科学引用本文复制引用
苟正贵,彭雨情,严若松,李强,王聪,陈坤坤,高志豪,向东,邢云飞,成志军,易克,冯新维..氮钾配施对湘烟7号生长和烟叶产质量的影响[J].福建农业科技,2025,56(8):27-35,9.基金项目
湖南省烟草公司黔南州公司科技项目(黔南烟技[2022]6号) （黔南烟技[2022]6号）
湖南中烟工业有限责任公司项目(20224300034095). （20224300034095）
