这种消毒的方法是在温室内或田间,用塑料薄膜覆盖土壤,进行密闭处理,通过水传导太阳的辐射热,使土壤不断地积蓄热量,从而提高土壤温度,杀死病虫害,达到土壤消毒的目的。 具体的做法是先深耕土壤,作起小畦,畦高60—70厘米,畦沟保持经常有水,然后覆盖塑料薄膜,密封处理14—30日,由于温度提高,而杀死各种病源菌和害虫,揭开薄膜后便可进行种植。 这样的处理方法,白天温室内的温度可高达70—80℃,土壤表面的温度达70℃以上,地表 This disinfection method is in the greenhouse or field, with plastic film covering the soil, airtight treatment, through the water conduction solar radiation heat, so that the soil continue to accumulate heat, thereby increasing soil temperature, kill pests and diseases, to soil disinfection purpose. The specific approach is to cultivate the soil, make small kelp, 畦 high 60-70 cm, 畦 ditch to keep water often, and then covered with plastic film, sealed for 14-30 days, due to temperature increase, and kill a variety of pathogenic bacteria And pests, opened the film can be planted. This approach, the daytime temperature in the greenhouse can be as high as 70-80 ℃, the soil surface temperature of 70 ℃ above the surface