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残留试验表明 ,用 2 0 %康福多浓可溶剂 60 0ml/hm2 喷施防治稻飞虱 ,在田水中原始沉积量为 0 .11～ 0 .2 5mg/kg ,半衰期为 5.9～ 7.9d ;在土壤中原始沉积量为 0 .0 8～ 0 .16mg/kg ,半衰期为5.3～ 2 4 .6d ;在茎叶上原始沉积量 2 .82～ 6.99mg/kg ,半衰期为 6.5～ 6.8d。最终残留量试验 ,表明在水稻卷叶螟、稻飞虱发生期喷药 2次 ,施药剂量为 30 0～ 60 0ml/hm2 ,最后一次施药距收获期为7d ,在糙米中残留量均低于 0 .0 5mg/kg ,在土壤和茎叶中的最终残留量分别小于 0 .0 83mg/kg和0 82 2mg/kg。
Residue tests showed that planthoppers were controlled and sprayed with 60 0 ml / hm2 of 20% concordant concentrated solubles. The initial deposition in field water was 0.11-0.25 mg / kg with a half-life of 5.9-7.9 days. In the soil, the initial deposition was 0.08 ~ 0.16mg / kg, the half-life was 5.3 ~ 24.6d; the original deposition on stems and leaves was 2.82 ~ 6.99mg / kg, the half-life was 6.5 ~ 6.8d. The final residue test showed that spraying rice leaf roller, planthopper twice during the spraying period, the application dose of 30 0 ~ 60 0ml / hm2, the final application of the harvesting period of 7d, the residual amount of brown rice were Below 0.05 mg / kg, the final residues in soil and stems and leaves were less than 0.083 mg / kg and 82.2 mg / kg, respectively.