3种除草剂对罗布麻田杂草的防除效果

目的]探讨3种除草剂对罗布麻田杂草防除效果。方法]采用专杀禾本科杂草的盖草能、精喹禾灵乳油和专杀阔叶杂草的白阔净进行了2年生罗布麻田杂草的除草试验。结果]高效盖草能对禾本科杂草具有较好的防治效果,施药后其对稗草和狗尾草的杀灭效果均在35.0%以上;精喹禾灵对稗草和狗尾草的杀灭效果分别为14.8%和28.6%;白阔净对藜具有较好的杀灭效果,防治效果达到30.8%,且未对罗布麻造成药害。结论]为完善罗布麻栽培技术提供了理论依据。

Control Effect of 3 Kinds of Herbicides against Weeds in Dogbane (Apocynum venetum) Field

Objective] The paper was to explore the control effects of 3 kinds of herbicides against weeds in dogbane(Apocynum venetum) field.Method] Using haloxyfop-R-mithyl and quizalofop-ethyl EC specially kill monogenus gramineous grass and chipton specially kill dicotyledonous broad-leaf weeds,the control test against weeds in 2-year-old dogbane field was carried out.Result] Haloxyfop-R-mithyl had good control effect against gramineous grass,and its control effect against both barnyard grass(Echinochloa crusgalli)and green bristlegrass(Setaria viridis) was greater than 35.0%;the control effects of quizalofop-ethyl EC against barnyard grass and green bristlegrass were 14.8% and 28.6%,respectively;chipton had good control effect against Chenopodium album,and the control effect reached 30.8%.Moreover,3 herbicides did not cause damage to dogbane.Conclusion] The study provide theoretical basis for completing cultivation technique of dogbane.