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A field experiments was conducted to investigate the effects of different microbial fertilizers of biological and compound formulations on soil physicochemical properties, growth and development, disease resistance, photosynthetic characteristics, economic traits, chemical composition, and sensory evaluation of tobacco leaves. The results showed that the application of microbial fertilizer could effectively improve the soil available nutrients, ameliorate soil acidification, and promote the growth and development of flue-cured tobacco, showing better plant height, leaf length, stem girth and effective leaf number. Among all the treatments, the treatment of biological agents, purple spotted fungus had the most obvious effect. In addition, the application of purple spotted fungus increased the net photosynthetic rate, intercellular CO2 concentration and relative chlorophyll content (SPAD value). Compared with the CK treatment, the application of microbial fertilizer affected the occurrence of tobacco disease. The application of root rot control agent (double dosage) and thick- walled verticillium improved the resistance to common mosaic virus, while the application of root rot control agent, purple spotted fungus, oxmayl and fluorescent pseudomonad improved the resistance to black shank disease. The appearance quality of flue-cured tobacco, economic properties, chemical composition of cured tobacco leaves and the total score of sensory evaluation were the best in the treatment of biological agents. This indicated that the application of purple spotted fungus in biological-based microbial fertilizer could improve soil physicochemistry properties to a certain extent, promote the growth and development of flue-cured tobacco and improve disease resistance. At the same time, it could cause changes in the appearance quality and chemical composition of flue-cured tobacco, thus improving the quality and yield quality of flue-cured tobacco.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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