几种禾本科杂草防除剂大豆田应用效果评价研究

Control Efficacy of Several Grass Herbicides in Soybean Field

温室试验结果表明，威霸、精禾草克、高效盖草能对稗草的作用速度较快，精稳杀得略慢，拿捕净最慢；田间试验结果表明，５种除草剂在推荐剂量下对大豆田禾本科杂草均有较好的防效，但高效盖草能用药成本最低，威霸、精禾草克次之，精稳杀得用药成本最高。

Test results in greenhouse indicated that all the test herbicide gave very high activity for control barnyardgrass (Echinochloa crus-galli(L.)Beauv.),but the acting speed of fenoxaprop,quizalofop-pH,haloxyfop against barnyardgrass was quicker than fluazifop-p-butyl.The slowest one was sethoxydim in the group.The field trial results showed that they had all high active on grassyweed in soybean fields,but the costs of haloxyfop,fenoxaprop and quizalofop-p were cheaper than the others.Fluazifop-p-butyl's was the most expensive one.