无土栽培营养液消毒技术研究与应用

Research and application of disinfection techniques of nutrient solution in soilless culture

为了减少营养液排放对环境造成的污染,世界范围内的无土栽培系统正逐步由开放式向封闭式转变。封闭式无土栽培系统中根系病害的传播危险急剧增加,因此营养液消毒技术的研究和应用发展迅速。该文综述了国内外营养液消毒方法、原理、成本及应用效果,重点介绍了营养液消毒新技术-慢砂过滤。

In the world soilless culture system is changing from open system in order to closed system in order to reduce the pollution of draining nutrient solution in the environment.However,the risk of spreading root pathogens in closed system dramatically(increased).Research and application of disinfection techniques have been developing quickly.The principles,processes,costs and(effects) of different disinfection techniques were summarized,especially a new method of slow sand filtration was introduced.