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一、土壤消毒1.药剂消毒法。在夏季闲茬时期,在未揭棚膜的情况下对栽培地块或苗床土壤进行消毒;首先将土壤翻松后,用40%甲醛稀释100倍均匀的喷洒土壤上,然后将所喷过药的土壤重新深翻后使药土均匀混合,用废旧薄膜全部覆盖后密闭温室45天,然后揭去薄膜并再次松动土壤,打开通风口通风,15天后即可进行播种或栽植。2.高温消毒法。在春茬蔬菜拉秧后,把病株残体清除到室外集体烧毁。清洁温室后,若将土壤呈酸性,则施如少量的生石灰,若将土壤呈碱性,需
First, the soil disinfection 1. Pharmacy disinfection. In the summer free stubble period, in the case of uncovering the film on the cultivation of land or seedbed soil disinfection; first loosen the soil, with 40% formaldehyde diluted 100 times evenly spray the soil, and then spray the drug Of the soil after re-deep turn the soil evenly mixed with waste film covering the greenhouse after all 45 days, and then peeled off the film and loosen the soil again, open the ventilation vents, 15 days after planting or planting can be carried out. 2. High-temperature sterilization method. Raise seedlings in the spring after the vegetables, remove the diseased plants to the outdoor collective burned. After cleaning the greenhouse, if the soil is acidic, then apply a small amount of quicklime, if the soil is alkaline, need