使用机动喷雾器带来的农药残留问题初探

PRELIMINARY STUDY ON PROBLEMS OF INSECTICIDE RESIDUES IN CASE OF SPRAYING WITH AN AUTOMATIC SPRAYER

用不同喷雾器（药械）喷洒化学农药后，青菜上的农药残留情况结果表明．在农药品种和剂量相同的情况下，用东方红－１８型机动喷雾器喷洒，青菜上的农药残留比使用工农－１６型手动喷雾器喷洒时高２．２～４．５倍。蔬菜接近收获期不宜使用机动喷雾器喷洒化学农药。

Insecticide residues in pakchoi were analysed is case of spraying insecticides with different sprayers.The results showed that the residues of insecticides sprayed with Dongfanghong-18(Dong-18)automatic sprayer were 2. 2～4. 5 times more than those of insecticides sprayed with Gongnong-16 manual sprayer. This suggested that it is not suitable to use automatic sprayer for spraying insecticides when vegetables become mature.