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Hubei Agricultural Sciences
2012,51
(3)
78-80
二氯喹啉酸·吡嘧磺隆WP防除水稻直播田杂草的效果及对养分的影响
作 者：
李宏;张雷雷;朱文达;邱玉兰;姚尤涛;张均
单 位：
江苏南通丰田化工有限公司;湖北省农业科学院植保土肥研究所
关键词：
二氯喹啉酸.吡嘧磺隆;水稻直播田;杂草防除
摘 要：
试验研究了20%二氯喹啉酸.吡嘧磺隆WP对水稻直播田杂草的防治效果,以及杂草防除后对田间养分和水稻产量的影响。结果表明,每公顷使用20%二氯喹啉酸.吡嘧磺隆WP有效成分150～270 g对水稻直播田的稗草、鸭舌草、节节草、异型莎草等均具有良好的防除效果,施药后40 d综合密度防效和鲜重防效均达94%以上,显著优于对照药剂50%二氯喹啉酸WP和10%吡嘧磺隆WP。施用20%二氯喹啉酸.吡嘧磺隆WP能有效降低杂草对田间氮、磷、钾和水分的吸收,水稻增产效果显著。
译 名：
Effects of Wettable Powder Mixed with Quinclorac and Pyrazosulfuron for Control of Weeds in Direct Sowing Rice Fields
作 者：
LI Hong1,ZHANG Lei-lei1,ZHU Wen-da2,QIU Yu-lan1,YAO You-tao1,ZHANG Jun1 (1.Jiangsu Nantong Fengtian Chemical Co.,Ltd,Nantong 226003,Jiangsu,China; 2.Institute of Plant Protection and Soil Science,Hubei Academy of Agricultural Sciences,Wuhan 430064,China)
关键词：
quinclorac + pyrazosulfuron;broadcasted rice fields;weed control
摘 要：
Trials were conducted to evaluate the effects of wettable powder mixed with quinclorac and pyrazosulfuron for control of weeds,as well as the effects of the absorption of nitrogen and crop yield.The results showed that 20% quinclorac and pyrazosulfuron WP had good control effects on Echinochloa crusgalli(L.) Beauv,Monochoria vaginalis(Burm.F.),Rotala indica,Cyperus difformis L.in broacasted rice fields.The overall fresh control effects and density control effects were over 94% at 150～270 g / hm2,and siginificantly higer than 50% quinclorac WP and 10% pyrazosulfuron WP.The application of 20% quinclorac and pyrazosulfuron WP siginificantly reduced the weeds absorption of nurition and water,resulting in prominent yield enhancing.
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