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经室外1a的降水淋溶和室内人工模拟5,7,10a淋溶试验,结果表明,砷铜合剂白蚁药的有效成份砷大部份仍停留在表土层。随着时间的推移,表土层砷量有所下降,下面土层砷量有所上升.生物测试表明,药土对家白蚁毒杀和驱避最低有效浓度为0.0457%.木块表层含砷量达65μg/cm2时,也能有效地防止白蚁取食,据此衡阳市白蚁所改进的新药6倍稀释液土壤处理用量可从目前的3.3kg/m2减少到2.5kg/m2,15a后表土层仍可保持上述有效砷量.这样既可节约成本1/4,又可减少环境污染.
After outdoor 1a leaching and indoor artificial simulation 5,7,10a leaching test, the results show that the arsenic copper mixture of termites most of the active ingredient arsenic remain in the topsoil. With the passage of time, the amount of arsenic in the topsoil decreased somewhat, and the amount of arsenic in the soil below it increased. Biological tests showed that the minimum effective concentration of drug to soil termites killed and repelled was 0.0457%. When the arsenic content in wood surface was 65μg / cm2, the termites could effectively prevent the termites from feeding. Therefore, the amount of 6-fold dilution of new drugs improved by termites in Hengyang could be reduced from the current 3.3kg / m2 to 2. 5kg / m2, 15a after the topsoil can still maintain the above effective arsenic. This will save the cost of 1/4, but also reduce environmental pollution.