中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 乙撑硫脲在人参茎叶中的残留动态 农药 2011,50 (8) 48-50
Position: Home > Articles > Residual Decline of Ethylenethiourea in the Stem and Leaf of Panax ginseng Agrochemicals 2011,50 (8) 48-50

乙撑硫脲在人参茎叶中的残留动态

作  者：
许允成;王春伟;高洁
单  位：
吉林农业大学农学院;吉林农业大学资源与环境学院
关键词：
乙撑硫脲;人参;残留;茎;叶;液相色谱
摘  要：
[方法]通过田间试验和液相色谱分析技术研究了75%代森锰锌代谢物乙撑硫脲在茎和叶中残留动态和最终残留量。[结果]吉林抚松田间试验结果表明:施药剂量为推荐剂量的2倍(6 250 g a.i./hm2)时,乙撑硫脲在茎和叶中原始沉积量分别为0.782、8.23 mg/kg;半衰期分别为4.9、19.5 d。施药1次,测得茎中乙撑硫脲残留量14 d后低于欧洲规定的MRL值(0.05 mg/kg),而叶中乙撑硫脲残留量均高于欧洲规定的MRL值(0.05 mg/kg)。[结论]综合多方面因素,按照推荐剂量3 125 g a.i./hm2处理,建议我国在茎上乙撑硫脲的MRL值可暂定为0.05 mg/kg,茎安全间隔期为14 d,而叶上的残留量较高,建议MRL值可暂定为0.50 mg/kg,叶安全间隔期无法确定,施药次数为1次。
译  名：
Residual Decline of Ethylenethiourea in the Stem and Leaf of Panax ginseng
作  者：
XU Yun-chenga,WANG Chun-weib,GAO Jieb(Jilin Agricultural University a.College of Resource and Environmental Science;b.College of Agronomy,Changchun 130118,China)
关键词：
ethylenethiourea;Panax ginseng;residual decline;stem;leaf;HPLC
摘  要：
[Methods]Field trial and high performance liquid chromatography were carried out to study residual dynamics and final residues of mancozeb's metabolite ethylenethiourea in the stem and leaf of Panax ginseng.[Results]The results of field trial in Fusong of Jilin province showed that when the sprayed dose was twice of the recommended dosage(6?250 g a.i./ha),the original sedimentary of ethylenethiourea dosage were 0.782 and 8.23 mg/kg in the stem and leaf of P.ginseng respectively,and the half-lives were 4.9 and 19.5 d in the stem and leaf of P.ginseng respectively.The results revealed that the ethylenethiourea residue in the stem of P.ginseng was below the MRL of Europe(0.05 mg/kg).However,the ethylenethiourea residue in the leaf of P.ginseng was above the MRL of Europe(0.05 mg/kg) 14 days after sprayed once.[Conclusions]The dosage of 3125 g a.i./ha of ethylenethiourea was recommended to apply in the stem of P.ginseng,the MRL of ethylenethiourea may be suggested to be 0.05 mg/kg temporarily and the preharvest interval of ethylenethiourea may be set at 14 days,but the residues in the leaf of P.ginseng were a little higher to recommend the preharvest interval of ethylenethiourea,the MRL of ethylenethiourea cannot be suggested,application times is once.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46