Effects of Reducing Nitrogen Application on Yield and Quality of Flue-cured Tobacco in Yunnan Province under Different Rainfall Conditions
Lü Shibao
Yang Huanwen
Li Junying
Xu Zhaoli
Wang Ge
Bai Yuxiang
Tan Xiaobing
Cheng Yadong
Abstract：The aim was to study the effects of reducing nitrogen application amount on yield and quality of flue-cured tobacco in Yunnan Province under different rainfall conditions.The simulation test was carried out in artificial climate chamber using the tobacco cultivar K326 as test material to study the agronomic traits,photosynthetic characteristics,yield and quality under different rainfall and nitrogen reduction ratio.The results showed that with the appropriate reduction of nitrogen fertilizer,the agronomic traits,photosynthetic characteristics,yield and quality of flue-cured tobacco were improved obviously,and with the increase of rainfall,the determination indexes of flue-cured tobacco treated with the same nitrogen were basically increased firstly and then decreased.Respectively,the optimum nitrogen amounts in the areas with lower,moderate and higher rainfall were N_25％ (3.75 g per plant),N_35％ (3.25 g per plant) and N_25％ (3.75 g per plant),which could be popularized after field test.
Keywords：RainfallReducing application of nitrogenAgronomic traitsPhotosynthetic characteristicsFlue-cured tobaccoYield and quality
Publication Date：2018-01-31
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 98-104 )