胡麻田间杂草防除药剂筛选研究

[目的]筛选对胡麻田间杂草具有较好防除效果的药剂。[方法]测定了不同剂量的40%立清乳油、56%2甲4氯钠可湿性粉剂、8.8%精喹禾灵乳油3种除草剂对胡麻田间杂草的防除效果。[结果]用40%立清600～900 ml/hm2,对水675 kg/hm2,在胡麻苗高约10cm时喷雾,对阔叶杂草防除效果达90%以上,保产效果在70%以上。[结论]为宁南山区胡麻田杂草的有效控制提供了参考。

Study on the Screening of Reagents to Control Weeds in Linseed Field

[Objective] The aim was to screen some reagent which had good control effect on weeds in linseed field. [Method] The control effects of different dosages of three herbicides like 40% Liqing EC, 56% MCPA-Na WP and 8.8% quizalofop-p-ethyl EC on weeds in linseed field were determined. [ Result] 40% Liqing EC at the dosage of 600-900 ml/hm2 mixed with water according to 675 kg/hm2 were sprayed on linseed seedlings with the height of about 10 cm, and its control effect on broadleaf weeds reached more than 90%, and the its production in- creasing rate was more than 70%. [ Conclusion] The research result provides reference for the effective control of weeds in linseed field in the mountain area of southern Ningxia.