Hydrolytic Biodegradation of Chlorothalonil in the Soil and in Cabbage Crops

摘要: Broccoli and Chinese cabbage crops were treated at planting by pouring an emulsion of the fungicide chlorothalonil around stem plant. During culture, was biodegraded in soil into l,3‐dicarbamoyl‐2,4,5,6‐tetrachlorobenzene (compound 1), l,3‐dicyano‐4‐hydroxy‐2,5,6‐trichlorobenzene 2), l‐carbamoyl‐3‐cyano‐4‐hydroxy‐2,5,6‐trichlorobenzene 3). Compounds 1 2 major metabolites soil. In harvested broccoli (in flower) cabbages (the leaves), concentrations compounds lower respectively than 0.1, 0.1 0.5mg/kg fresh weight.