中国农业科技导报2024，Vol.26Issue(7)：166-173,8.DOI:10.13304/j.nykjdb.2022.1075
紫外线对栽培营养废液的抑菌效应及营养成分影响研究
Study on Antifungal Effect and Composition of Ultraviolet on Nutritional Wastewater
摘要
Abstract
To evaluate the antifungal effect of Fusarium oxysporum and composition of ultraviolet irradiation on nutritional wastewater,taking 2 typical fungi,Fusarium oxysporium f.sp.Cucumerinum and Fusarium oxysporum f.sp.Lycopersici as materials,and the sterilization experiment of nutrient wastewater was conducted,which 3 different levels of irradiation intensity according to 1.3,2.7,3.8 mW·cm-2,and 3 irradiation time applications including 1,3,5 min were carried out.The results showed that,UV irradiation had obvious antifungal effect on 2 kinds of pathogenic fungi in vitro culture,and with the increase of irradiation dose,the mycelium grew slowly,the colony morphology shrank,the spore reproduction and the germination rate decreased,and 100%sterilization rate was achieved at the highest dose of 1 140 mJ·cm-2(3.8 mW·cm-2,5 min).Similarly,the highest dose treatment under the inoculated nutrient solution significantly inhibited the growth of spores and reached a killing rate of more than 95%.In addition,after the highest dose of UV irradiation,the removal rates of organic matter in the 2 nutrient solutions were 92.3%and 83.3%,respectively,while the contents of total nitrogen and total phosphorus did not change significantly,which indicated that while UV irradiation could effectively disinfect,it would easily trigger the loss of organic matter in nutrient solution and affect its subsequent recycling.Above results provided basic data for the application of ultraviolet sterilization technology in the circulation system of facility horticulture.关键词
紫外辐射/营养废液/尖孢镰刀菌/抑菌作用/营养成分Key words
ultraviolet irradiation/nutritional wastewater/Fusarium oxysporum/antifungal effect/nutrient composition分类
农业科技引用本文复制引用
刘崇涛,李同,李洋洋,刘壮壮,蔡阳扬,宋建超,张万通,尚斌,陶秀萍..紫外线对栽培营养废液的抑菌效应及营养成分影响研究[J].中国农业科技导报,2024,26(7):166-173,8.基金项目
中国农业科学院都市农业研究所基本科研业务费专项所级统筹项目(S2022002) （S2022002）
国家奶牛产业技术体系项目(CARS-36) （CARS-36）
中国农业科学院科技创新工程项目(ASTIP-IUA-2022001). （ASTIP-IUA-2022001）
