Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (13): 29-35.doi: 10.11924/j.issn.1000-6850.casb19020070

Special Issue: 烟草种植与生产

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Effects of N, P, K Rates on Yield and Quality of Flue-cured Tobacco Variety ‘Xiangyan 5’

Wang Xichun1, Yuan Fang1, Zhou Xiangping1, Yang Quanliu1, Xiao Qinzhi1, Huang Shiwang1, Jiang Duzhong1, Gao Chunyang1, Tang Shen1, Lu Chaojun2   

  1. 1 Yongzhou Branch of Hunan Tobacco Corporation, Yongzhou Hunan 425000
    2 Yongzhou Institute of Agriculture Science, Yongzhou Hunan 425000
  • Received:2019-02-27 Revised:2019-05-27 Online:2020-05-05 Published:2020-04-16

Abstract:

The objective of this study is to investigate the effects of N, P, K rates on yield and quality of flue-cured tobacco variety ‘Xiangyan 5’ and to provide a scientific basis for further extension of ‘Xiangyan 5’ in Yongzhou. An orthogonal L9(3 4) design with three N level, three P level and three K level were employed for the field experiment. Agronomic attributes, major economical characters, and quality of tobacco ‘Xiangyan 5’ were investigated of different treatments. The results showed that the different treatments of yield, value, average price, tobacco leaf grade ratio existed difference. Among all the treatment, N135P108K378 had better economic characters and better economic efficiency, the flue-cured leaves ratio of sugar alkali ratio, nitrogen alkali ratio, potassium chlorine ratio were suitable, the internal chemical components of tobacco leaves were more coordinated. Applying NPK at the rate of N:P:K=135:108:378 could get the best effect of flue-cured tobacco variety ‘Xiangyan 5’ under medium soil fertility in the tobacco region of Yongzhou.

Key words: flue-cured tobacco, flue-cured tobacco variety ‘Xiangyan 5’, nitrogen, phosphorus, potassium, yield, quality

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