Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (4): 210-218.doi: 10.11924/j.issn.1000-6850.casb2025-0668

Previous Articles    

Analysis of Differences and Usability of Chemical Components in Flue-cured Tobacco from Different Production Areas of Shandong Province

XIONG Ying(), YANG Junjie, JIANG Jiazhu, LI Qiang, WANG Yong, ZHANG Yang, DONG Xiaowei, ZHANG Dongdong()   

  1. China Tobacco Shandong Industrial Limited Company, Jinan 250014
  • Received:2025-08-11 Revised:2025-12-12 Online:2026-02-27 Published:2026-02-27

Abstract:

To investigate the differences and usability of chemical components in flue-cured tobacco from different production areas of Shandong Province, B2F and C3F grade flue-cured tobacco samples from 20 production areas in six regions (Weifang, Linyi, Jinan, Zibo, Rizhao, and Qingdao) were analyzed. The contents of total sugar, reducing sugar, total nitrogen, nicotine, potassium, and chloride were determined. Regional differences were analyzed through multiple comparisons and cluster analysis, while the chemical component usability index (CCUI) was calculated using fuzzy mathematics to evaluate quality grades. The results showed that: (1) The total sugar content of B2F tobacco was within the optimal range, but reducing sugar, total nitrogen, potassium, and chloride were below optimal levels, with nicotine content exceeding thresholds. C3F tobacco exhibited slightly higher total sugar and optimal reducing sugar, but insufficient total nitrogen, nicotine, potassium, and chloride. The B2F grade tobacco exhibited significantly lower total sugar and reducing sugar content compared to the C3F grade, while its total nitrogen and nicotine content were significantly higher. No significant differences were observed in potassium and chloride content between the two grades. (2) High coefficients of variation (CV) were observed in chemical components (B2F: 12.91%-42.68%; C3F: 10.89%-48.57%), with nicotine, potassium, and chloride CV exceeding 20%, indicating pronounced fluctuations. (3) Flue-cured tobacco exhibited significant differences in chemical components and usability among different production areas, yet cluster analysis revealed no distinct geographical differentiation patterns. (4) In some production areas, flue-cured tobacco exhibits a low-value tendency in CCUI, with insufficient total nitrogen, potassium, and chloride content being common limiting factors. In summary, in some tobacco production areas in Shandong Province, flue-cured tobacco exhibits insufficient chemical coordination. Targeted optimization of nitrogen, potassium, and chloride nutrient management, along with standardized cultivation practices, should be implemented to enhance quality.

Key words: Shandong Province, flue-cured tobacco, production areas, routine chemical components, multiple comparisons, cluster analysis, chemical component usability index