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高温闷棚蔬菜定植前,选择晴天盖上棚膜,密闭闷棚7~10天,使大棚内温度提高到60℃以上,以杀死土表及墙体上的病菌孢子及虫卵,减少蔬菜生长期的侵染源。如果在高温闷棚时,按每立方米棚室空间,用硫磺粉3克、锯末5克、敌敌畏烟剂1克的均匀混合物,暗火点燃,密闭烟熏,效果更好,但熏后应放风2~3天,再整地定植。
High temperature bored shed vegetables before planting, select the sunny cover green film, closed boring shed 7 to 10 days, so that the greenhouse temperature above 60 ℃ to kill soil surface and wall bacteria spores and eggs, reduce vegetable growth Period of infection. If the boredom at high temperatures, per cubic meter of greenhouse space, with 3 grams of sulfur powder, sawdust 5 grams, 1 gram of dichlorvos mixture of a uniform fire, dark fire, sealed smoked better results, but should be smoked Breeze 2 ~ 3 days, and then planting the whole earth.