Abstract: The aim was to study the effects of applying microbial fertilizers in the root zone on the quality and economic traits of tobacco leaves，and clarify the suitable microbial fertilizers for improving the quality of tobacco leaves in tobacco rice intercropping areas.Yunyan 87 was used as the test tobacco variety.Five treatments were designed，including Dunfeng nano‑silicon microbial fertilizer，Gengtianxia microalgal nutrient solution，Jinye microbial fertilizer，Genjinkang microbial inoculant，and a control group without microbial fertilizer.A single‑factor randomized block design was conducted to investigate the effects of applying microbial fertilizer on leaf appearance quality，physical characteristics，chemical composition，smoking quality，and economic traits of flue‑cured tobacco.A leaf quality index and a comprehensive effect index were established for fuzzy comprehensive evaluation.Results demonstrated that root zone application of microbial fertilizers improved leaf appearance quality and physical characteristics，enhanced chemical composition coordination and smoking quality，and increased the premium‑grade ratio，yield，and output value of flue‑cured tobacco. Specifically，compared to the control，Jinye microbial fertilizer increased the appearance quality index of B2F，C3F，and X2F grades by 13.54%，4.37%，and 4.45%，respectively；Physical characteristic indices improved by 3.67%，6.25%，and 6.80%；Chemical usability indices rose by 6.14%，9.81%，and 6.59%；Smoking quality indices increased by 13.80%，18.80%，and 10.40%；Leaf quality index improved by 10.17%，13.02%，and 8.14%. For economic traits，Dunfeng nano‑silicon microbial fertilizer，Gengtianxia microalgal nutrient solution，Jinye microbial fertilizer，Genjinkang microbial inoculant treatments increased economic trait indices by 8.80%，11.10%，23.60%，and 19.80%，respectively；Comprehensive effect indices were elevated by 6.43%，6.75%，13.81%，and 9.00%.In conclusion，microbial fertilizer application significantly enhances leaf quality and economic performance of flue‑cured tobacco，with Jinye microbial fertilizer exhibiting the most pronounced benefits.

Key words: Paddy?stubble tobacco, Application in root zone, Microbial fertilizer, Economic trait, Quality of flue?cured tobacco, Fuzzy comprehensive evaluation

摘要： 研究根区施用微生物肥料对烟叶品质和经济性状的影响，明确烟稻复种区烟叶品质提升适宜的微生物肥料。以云烟87为供试烤烟品种，设计顿丰纳米硅菌肥、耕天下微藻营养液、金叶微生物菌肥、根茎康微生物菌剂和不施微生物菌剂等5个处理，采用单因素随机区组试验，研究施用微生物菌肥对烟叶外观质量、物理特性、化学成分、感官评吸质量和烤烟经济性状的影响，并构建烟叶外观质量指数、物理性状指数、化学成分可用性指数、感官质量指数、品质指数、综合效果指数对不同处理进行模糊综合评价。结果表明，稻茬烤烟根区施用微生物菌肥可改善烟叶外观质量和物理特性，提高烟叶化学成分协调性、感官评吸质量和品质指标，提高烤烟上等烟率、产量和产值。施用金叶微生物菌肥烟叶的B2F、C3F、X2F等级外观质量指数较不施微生物菌肥的烟叶分别提高了13.54%、4.37%、4.45%，物理性状指数分别提高了3.67%、6.25%、6.80%，化学成分可用性指数分别提高了6.14%、9.81%、6.59%，感官质量指数分别提高了13.80%、18.80%、10.40%，品质指数分别提高了10.17%、13.02%、8.14%。施用顿丰纳米硅菌肥、耕天下微藻营养液、金叶微生物菌肥、根茎康微生物菌剂较不施微生物菌肥烟叶的经济性状指数分别提高了8.80%、11.10%、23.60%、19.80%，综合效果指数分别提高了6.43%、6.75%、13.81%、9.00%。综上所述，施用微生物肥料可以提高烟叶品质和经济性状，其中以金叶微生物菌肥的施用效果最佳。

关键词: 稻茬烤烟, 根区施肥, 微生物肥料, 经济性状, 烟叶品质, 模糊综合评价