Abstract: To investigate characteristic of fungicide reside in greenhouse soil during fallow period,fungicide and residues in greenhouse were analyzed during fallow period of spring cucumber and autumn tomatoes. The results showed that fungicide including carbendazim, thiophanate-methyl, metalaxyl, dimethomorph, pyrimethanil, prochloraz, triazolone, difenoconazole and chlorothalonil were all detected. Dimethomorph residue was the highest with 38.33 μg/kg in fallow period in spring. However,difenoconazole residue was the highest with 62.70 μg/kg in fallow period in autumn. In a conclusion, fungicide residue was still in soil during fallow period.

Key words: greenhouse vegetable, fungicide residue, fallow period