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1 育苗棚的消毒一是育苗棚内土壤要求肥沃、疏松、保水性及透气性良好的混合土。二是更换土壤深度20～30cm,必须从至少5年内没有种过茄科、瓜类、蔬菜、马铃薯和烟草等园地中选取。三是更换的土壤要进行消毒,常用的方法有:(1)用福尔马林(40%的甲醛),一般1000kg土壤,用福尔马林200～300mL,加水25～30kg,喷洒到土里,充分拌匀后堆置,土堆上面覆盖潮湿的草帘或塑料薄膜等,闷2～3d,然后揭开覆盖物,经过10d左右,待土壤中药气散发尽后才可播种。
A nursery shed disinfection First nursery shed soil requirements fertile, loose, water retention and good permeability of mixed soil. Second, the depth of soil replacement 20 ~ 30cm, must be from at least 5 years did not planted Solanaceae, melons, vegetables, potatoes and tobacco and other garden selection. The third is to replace the soil to be disinfected, commonly used methods are: (1) with formalin (40% formaldehyde), generally 1000kg soil, with formalin 200 ~ 300mL, add water 25 ~ 30kg, sprayed into the soil , Mix well after the pile, mulch covered with moist grass curtain or plastic film, boring 2 ~ 3d, and then uncover the cover, after about 10d, until the soil after the gas can be sown in the gas distribution.