摘要
[目的]为了探明K326在抚州烟区种植的适宜施氮量及其对产质量形成的影响。[方法]2013年,在抚州市宜黄县烟草科技园,以K326为材料,进行105、120、135、150、165 kg/hm2的施氮量处理。[结果]烤烟K326生物学产量随施氮量的增加而升高,经济性状、单位面积产值随施氮量的增加先升高后降低。随着施氮量的增加,K326的大田生育期延长,叶片数减少,叶面积增加,叶片内糖类物质、K2O明显降低,总氮、生物碱含量明显增加。[结论]当施氮量为135 kg/hm2时,K326产量适宜,单位面积产值最高,内在化学成分协调,外观质量、评吸质量均较好。
[ Objective ] The research aimed to verify the appropriate N application and yield and quality of flue-cured tobacco K326 in Fuzhou. [ Method] Taken K326 as test variety, 105,120,135,150 and 165 kg/hm^2 nitrogen fertilizer were applied in the Tobacco Science Park of Yihuang in Fuzhou City in 2013. [ Result ] With the increase of N application,the biological yield of flue-cured tobacco K326 increased,the economic characters and the output of tobacco leaves increased frist and then decreased. More N Used extended the field growth period, reduced leaf number,increased leaf area,lowered the carbohydrates and K20 in leaves significantiy ,while increased the content of total nitrogen and alkaloid significantly. [ Conclusion ] N application of 135 kg/hm^2 resulted in proper yield, highest production value, good balance of chemical compositions, and better quality of appearance and smoking.
出处
《安徽农业科学》
CAS
2015年第16期120-123,共4页
Journal of Anhui Agricultural Sciences
关键词
烤烟
施氮量
生长
产质量
Flue-cured tobacco
N application
Growth
Yield and quality
