研究论文
杨克武,莫汉宏,徐晓白,戴广茂.灭幼脲Ⅲ号在土壤中的吸附与淋溶[J].环境科学学报,1993,13(1):39-44
灭幼脲Ⅲ号在土壤中的吸附与淋溶
- ADSORPTION AND LEACHING OF 1-(2-CHLOROBENZOYL)-3-(4-CHLOROPHENYL)UREA(CCU)
- 摘要:用批量平衡法研究了昆虫生长调节剂灭幼脲Ⅲ号在四种不同类型土壤中的吸附行为,测定其吸附常数,给出吸附等温线;并研究了它在上述四种土壤中的淋溶行为.结果表明,Freun-dlich经验公式能较好地描述灭幼脲Ⅲ号在土壤中的吸附状况.试验表明,该农药在土壤中的迁移能力较差。
- Abstract:Adsorption of l-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea (CCU) in four different soil samples was studied with a batch equilibrium method in laboratory conditions. Freundlich adsorption constants and adsorption isotherm curves were obtained.Leaching of l-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea in different soil columns was also studied. The experiment results indicated that the movement of the compound in soils was slow.
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