17.5精喹禾灵EC对大豆田一年生禾本科杂草r防除效果研究

摘要

To determine the control efficacy of quizalofop-p-ethyl 17.5%EC against Digitaria sanguinalis (L.) Scop and Echinochloa crusgalli (L.) Beauv as well as its safety in soybean fields, 4 treatments including 26.25,39.375,52.5 and 78.75 g/hm2 of quizalofop-p-ethyl 17.5%EC were established,with 45 g/ha of quizalofop-p-ethyl 5%EC as herbicide control,the manual weeding and water as negative control. The results showed that quizalofop-p-ethyl 17.5%EC preformed well in control-ling the weeds of D. sanguinalis(L.) Scop and E. crusgalli(L.) Beauv,which could be used widely in soybean production.%为明确17.5%精喹禾灵EC对大豆田禾本科杂草的防除效果及其使用的安全性,在田间设17.5%精喹禾灵EC每公顷26.25、39.375、52.5、78.75 g 4个处理,以5%精喹禾灵EC 45 g/hm2为对照药剂,以人工锄草和清水喷雾为对照.结果表明,17.5%精喹禾灵EC对大豆田马唐、稗草具有很好的防效,可以在生产上推广使用.