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测定了水杨酸、草酸、磷酸二氢钾、磷酸氢二钾、腐殖酸钾、磷酸氢二钠等7种化学物质对烟草野火病菌的室内抑菌效果和对烟草植株的诱抗作用。结果表明，供试的7种化学物质对烟草野火病菌均没有直接杀伤作用，其中水杨酸和草酸对烟草植株抗野火病有较好的诱导效果。
The antibacterial activities of 7 chemicals, including salicylic acid, oxalic acid, potassium dihydrogenphosphate, dipotassium hydrogenphosphate, potassium humate and disodium hydrogenphosphate, on the indoor bacteriostatic effect of tobacco wildfire and the inducement to tobacco plants were determined. The results showed that the seven chemicals tested had no direct killing effect on tobacco wildfire, and salicylic acid and oxalic acid had good effect on resistance to wildfire of tobacco plants.