| 二氯喹啉酸在稻田水、土壤和作物中残留动态研究 |
| 摘要点击 801 全文点击 955 投稿时间：1995-06-20 |
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| 中文关键词 二氯喹啉酸代谢物 消解动态 最终残留 稻田水 土壤 作物 |
| 英文关键词 Quinclorac metabolite dissipation final residue water rice soil |
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| 中文摘要 |
| 二氯喹啉酸为高效、低毒新型除草剂。在天津和吉林2年2地水田残留实验结果表明,此药在田水和茎叶中消解很快。二氯喹啉酸在田水中的半衰期分别为0.8d(天津)和2d(吉林).在茎叶中的半衰期小于1d.该农药在土壤中残留较低,消解较快,半衰期约为6d;在土壤中均未检出二氯喹啉酸代谢物。按推荐剂量421.5-525g/hm2,施药1次,施药间隔期为96-105d,糙米中二氯喹啉酸残留量均小于0.005mg/kg,远远低于最高残留限量,对人是安全的。 |
| 英文摘要 |
| Quinclorac is a new herbicide with high efficiency and low toxicity.The field experiments were carried out both in Tianjin and Jinn Province in 1993 and 1994, respectively. It has been found that the herbicide dissipated rapidly from water and leaves. Its half life values in the water was 0.8 days in Tianjin and 2 days in Jinn, and the half life in rice leaves was less than 1 day.The residure in sediment remained quite low during 6 days of half life. No metabolite was detected in soil.Applied to rice field as a 50% WP formulation at the recommended rates of 412.5g-525 g/hm2,one application,preharvest interval 96-105 days,the residue remaining in unpolished rice was less than 0.005 mg/kg,far below MRL,and was safe to humanbeing. |
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