| RELEASE OF ~(14)C—BUTACHLOR AND ~(14)C—OXADIAZON FROM CR FORMULATIONS INTO WATER |
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| 作者姓名： | 孙锦荷 李兴明 陈子元 张勤争 |
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| 作者单位： | Institute of Nuclear-Agricultural Sciences Zhe jiang Agric. Univ. Hangzhou 310029 China，Institute of Nuclear-Agricultural Sciences Zhe jiang Agric. Univ. Hangzhou 310029 China，Institute of Nuclear-Agricultural Sciences Zhe jiang Agric. Univ. Hangzhou 310029 China，Institute of Nuclear-Agricultural Sciences Zhe jiang Agric. Univ. Hangzhou 310029 China |
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| 摘 要： | ~(14)C-butachlor and ~(14)C-oxadiazon could be released from four kinds of CR formulations into water respectively, and the release percentage of each herbicide increased with time, which could be expressed by regression equations (very obvious positive relationship). The release percentages of ~(14)C-herbicides from CR formulations were related to herbicide CR formulation and water type. Total recovery including ~(14)C-released and ~(14)C-left in formulations for each ~(14)C-herbicide was high at the 56th day after treatment. Some of the released ~(14)C-butachlor in water could be hydrolysed although under dark condition. The rate of hydrolysis was influenced by water type and formulations.
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