RELEASE OF ^(14)C—BUTACHLOR AND ^(14)C—OXADIAZON FROM CR FORMULATIONS INTO WATER  

作　　者：孙锦荷 李兴明 陈子元 张勤争 

机构地区：[1]Institute of Nuclear-Agricultural Sciences, Zhe jiang Agric. Univ., Hangzhou 310029, China

出　　处：《Nuclear Science and Techniques》1991年第4期199-203,共5页核技术（英文）

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.¹⁴C-butachlor and ¹⁴C-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 ¹⁴C-herbicides from CR formulations were related to herbicide CR formulation and water type. Total recovery including ¹⁴C-released and ¹⁴C-left in formulations for each ¹⁴C-herbicide was high at the 56th day after treatment. Some of the released ¹⁴C-butachlor in water could be hydrolysed although under dark condition. The rate of hydrolysis was influenced by water type and formulations.

关 键 词：RELEASE BUTACHLOR OXADIAZON CONTROLLED-RELEASE FORMULATION WATER 

分 类 号：TL[核科学技术]