臭氧水对土传病原真菌的杀灭作用

为探寻土壤绿色消毒方法，研究不同质量浓度的臭氧水对3种土传病原真菌尖孢镰刀菌（Fusarium oxysporum）、立枯丝核菌（Rhizoctonia solani）及灰霉菌（Botrytis cinerea）的杀灭效果。结果表明：质量浓度1.0~5.0 mg/L的臭氧水对3种病原真菌的孢子都有一定的杀灭作用，臭氧水质量浓度是影响杀灭率的主要因素，作用时间对杀灭率无显著影响；提高臭氧水质量浓度及增加浇灌次数能显著增强对土壤中3种病原真菌的杀灭率；臭氧水浇灌土壤能显著降低植株的发病率，但植株的生长受到抑制，添加木霉能消除这种抑制作用。

The disinfection effect of ozone water on soil-borne pathogenic fungi

For exploring the green methods of soil disinfection, the disinfection effects of ozone water at different mass concentrations on three soil-borne pathogenic fungi, Fusarium oxysporum, Rhizoctonia solani, and Botrytis cinerea, were studied. The results showed that ozone water in the mass concentration range of 1.0~5.0 mg/L has certain sterilizing effect on the spores of the three pathogenic fungi. The mass concentration of ozone water is the main factor affecting the sterilization rate, whereas the treatment time has no significant effect on it. Increasing the mass concentration of ozone water and the frequency of irrigation can significantly enhance the sterilization rate of the three pathogenic fungi in the soil. Irrigation of the soil with ozone water can significantly reduce disease incidence in plants. However, it leads to growth inhibition, and the introduction of Trichoderma can eliminate this inhibition.