当前位置: 首页 > 文章 > 20%康福多浓可溶剂在棉叶、土壤上降解动态及棉花上残留量研究 农药 1999 (12) 19-20
Position: Home > Articles > Degradation Dynamic and Residue of Imidacloprid 20 OSL in Cotton and Soil Agrochemicals 1999 (12) 19-20

20%康福多浓可溶剂在棉叶、土壤上降解动态及棉花上残留量研究

作  者:
朱亚红;于志光;吴俐勤;徐浩
单  位:
浙江省农科院植保所农药室
关键词:
康福多;降解动态;半衰期;残留量
摘  要:
康福多田间动态试验按棉花棉蚜发生期,以60ml/667m2 喷施。在棉叶上原始沉积量为1-904 ~2-580mg/kg,半衰期为2-2 ~2-5 天;在土壤中原沉积量为0-101 ~2-037mg/kg,半衰期为7-6~17-7 天,防治二、三、四代棉铃虫,喷药2~3 次,30ml/667m2 、60ml/667m2 ,最后一次施药距收获期为14 天,在棉籽中残留量低于0-05mg/kg。土壤中残留量低于0-165mg/kg。结果表明,康福多在棉叶中降解迅速,在常剂量下,对棉籽及土壤污染较轻
译  名:
Degradation Dynamic and Residue of Imidacloprid 20 OSL in Cotton and Soil
作  者:
Zhu Yahong et al. (Institute of Plant Protection,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021)
关键词:
imidacloprid,degradation dynamic,half-life,residue.
摘  要:
Imidacloprid 20 OSL was applied at 900ml/ha for control of cotton aphids.Its original accumulation was 1.904~2.580mg/kg in cotton leaves and 0.101~2.037mg/kg in soil.Its half-life was 2.2~2.5 d in cotton leaves and 7.6~17.7 d in soil.For control of the 2nd,3rd,4th generation cotton bollworms,sprays of 450ml/ha and 900ml/ha were each made twice or three times,with an interval of 14 days between the last sprays and harvest.Residue was <0.05mg/kg in cotton seeds and <0.165mg/kg in soil.Results indicated that degradation of imidacloprid 20 OSL was rapid in cotton leaves.Normal dosage of imidacloprid 20 OSL brought light contamination to cotton seeds and soil.

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