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为筛选出适合湘南稻茬烤烟根区施用的生物有机肥,利用大田试验研究了湖南省桂阳县不同生物有机肥根区施用对烤烟农艺性状、叶绿素、光合特性、经济性状及烟叶物理特性、化学成分、评吸质量的影响.结果表明:①根区施用三饼合一生物有机肥、纯天然生物有机肥在促进烤烟生长、提高烟叶光合能力、提升烟叶物理特性和化学成分等方面具有优势.②根区施用三饼合一生物有机肥的烟叶产量与产值最高.③三饼合一生物有机肥、植物秸秆有机肥根区施用在提升烟叶感官评吸质量方面具有优势.湘南稻作烟区应选择三饼合一生物有机肥进行根区施用.“,”To screen suitable bio-organic fertilizers (BOFs) to root-zone soil for flue-cured tobacco rotated with rice paddy in southern Hunan, a field experiment was performed in Guiyang County to investigate the effects of different BOFs on selected agronomic traits, chlorophyll, photosynthetic characteristic, and leaf economic traits, physical properties, chemical components and sensory quality of flue-cured tobacco. The results showed that:1) The application of BOF fermented from rapeseed, sesame and bean cakes and BOF fermented from pig manure to root-zone soil was beneficial in promoting the growth of flue-cured tobacco, especially on the photosynthetic capacity, physical properties and chemical components of tobacco leaves. 2) The yield and output value of flue-cured tobacco were the highest under the treatment of BOF fermented from rapeseed, sesame and bean cakes. 3) BOF fermented from rapeseed, sesame and bean cakes and BOF fermented from plant straws improved the sensory quality of flue-cured tobacco. Therefore, BOF fermented from rapeseed, sesame and bean cakes was suitable for the root-zone soil of flue-cured tobacco in tobacco-rice rotation fields in southern Hunan.