Effects of Planting Density,Nitrogen Rate and Number of Remained Leaves on Yield and Quality of Flue -Cured Tobacco
Hou Bingqing
Xing Xuexia
Zhao Zhe
Zhang Jinghua
Zhang Xiaoquan
Zhai Xin
Shang Xiaoying
Yang Tiezhao
Abstract：To study the effects of planting density,nitrogen rate and number of remained leaves on the yield and quality of flue -cured tobacco,the orthogonal experiment with three factors and three levels was de-signed.The results showed that the planting density and number of remained leaves had a great effect on the flue -cured tobacco agronomic traits.The number of remained leaves had great effects on the content of carbo-hydrate compounds,total nitrogen and protein in the middle leaves.The planting density mainly affected the carbohydrate content in upper leaves.The nicotine content increased with the increase of nitrogen application rate.The potassium content in tobacco leaves was increased at a certain extent by increasing the number of re-mained leaves.The yield,output value and proportion of middle and superior tobacco leaves were the best un-der the optimal combination with the density as 1 200 plants,nitrogen application rate as 5.5 kg and 21 leaves remained per 666.7m2 .
Keywords：Flue -cured tobaccoPlanting densityNitrogen rateNumber of remained leavesYield and quality
Publication Date：2015-09-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 46-51,55 )