中国农学通报2025，Vol.41Issue(35)：9-18,10.
施氮量、有机氮占比、留叶数对楚雄'K326'烤烟产质量的影响
Influence of Nitrogen Application Rate,Organic Nitrogen Ratio,and Remained Leaf Number on Agronomic Characters,Yield,and Quality of Flue-cured Tobacco Variety'K326'in Chuxiong
摘要
Abstract
The study investigates the effects of nitrogen application rate,organic nitrogen proportion and retained leaf number on the yield and quality of'K326'flue-cured tobacco in Chuxiong region.Through systematic experimentation,we aim to determine the optimal combination of these three key cultivation factors to provide technical support for optimizing the cultivation measures of Chuxiong'K326'and improving tobacco leaf yield and quality.L9(34)orthogonal experimental design was employed to study nitrogen application rate,organic nitrogen ratio and remained leaf number in Nanhua County of Chuxiong in 2023,and we analyzed the effects of these factors on the agronomic characters,economic characters and chemical composition of tobacco.Results showed that,the nitrogen application rate of 150 kg/hm2 had the best performance on comprehensive agronomic characters,and the internal chemical components of tobacco leaves were more coordinated,the nitrogen application rate of 120 kg/hm2 had the best performance on economic characters.Organic nitrogen ratio of 30%had the best performance on agronomic characters,and the internal chemical components of tobacco leaves were more coordinated,and organic nitrogen ratio of 10%had the best performance on yield and medium quality leaves ratio,organic nitrogen ratio of 20%had the best performance on output value,average price and high quality leaves ratio.Remained leaf number of 18 had the best performance on agronomic characters and economic characters,remained leaf number of 22 had the best performance on yield,when the number of remained leaves was 20,the internal chemical components of tobacco leaves were more coordinated.Considering the effects of nitrogen application rate,organic nitrogen ratio and remained leaf number,nitrogen application rate of 150 kg/hm2,organic nitrogen ratio of 30%and remained leaf number of 20 had the best performance on agronomic characters and chemical quality of flue-cured tobacco;nitrogen application rate of 120 kg/hm2,organic nitrogen ratio of 10%and remained leaf number of 20 had the best performance on yield;nitrogen application rate of 120 kg/hm2,organic nitrogen ratio of 30%and remained leaf number of 10 had the best performance on output value,average price and high quality leaves ratio.Therefore nitrogen application rate of 120 kg/hm2,organic nitrogen ratio of 30%and remained leaf number of 18 was the best combination of this experiment.This can serve as a key cultivation technique for the tobacco variety'K326'in Chuxiong to guide local tobacco production.关键词
烤烟/'K326'/施氮量/有机氮占比/留叶数/农艺性状/产量/质量Key words
flue-cured tobacco/'K326'/nitrogen application rate/organic nitrogen ratio/remained leaf number/agronomic characters/yield/quality分类
农业科技引用本文复制引用
扶艳艳,鲁耀,耿少武,高有寿,柴云霞,布云虹..施氮量、有机氮占比、留叶数对楚雄'K326'烤烟产质量的影响[J].中国农学通报,2025,41(35):9-18,10.基金项目
中国烟草总公司云南省公司重大科技项目"楚雄K326植烟土壤精准管理及烟叶品质调控关键技术研究"(2023530000241019). （2023530000241019）
