两种新型除草剂对麦田恶性杂草防除效果

推广使用高效、安全的麦田除草剂是控制节节麦等麦田恶性杂草严重发生的经济有效的措施之一，本试验采用田间试验方法研究了AEF1300603OF(3％世玛油剂)及WG13A13．6WG对麦田恶性杂革的防治效果。试验结果表明，WG13A13．6WG对麦田杂草防除效果显著，其最佳用量为25～35g／667m^2。在小麦返青期，对节节麦防效达85％～95％，对蜡烛草的防效达85％～90％，对播娘蒿、荠菜的防效达100％，对猪殃殃、婆婆纳等抗性较强的杂革防效也在90％～100％，均高于AEF1300603OF的防除效果。收获首田间调查发现防效趋势与首期调查结果一致。而且WG13A13．6WG防除杂草后使小麦的增产幅度在16．27％～25．48％。

Controlling Effects of Two New Herbicides on Malignant Weeds in Wheat Field

The utilization of effective and safe heribicides was one of the useful and efficient measures to control the weeds in wheat fields. The effect of AEF130060 3 OF and WG13A1 3. 6 WG on controlling the weeds was reported in this paper. The results of field trial indicated that WG13A1 3. 6 WG had a good effect on controlling weeds in wheat field with application of 25-35 g/667m2. In the green returning stage of wheat, the effects of WG13A1 3. 6 WG on controlling goatgrass (Aegilops squarrosa L. ) and british timothy (Phleum paniculatum Huds) were about 85%-95% and 85%-90%, respectively. For flixweed (Descurainia sophia L. Schur) and case weed (Capsella bursa-pastoris L. Medic), the effect of controlling reached 100%. For the high resistance weeds such as slender catchweed bedstraw (Galium aparine L. var. ) and binate speedwell (Veronica didyma Tenore), the effects of controlling were about 90%- 100%, and higher than those of AEF130060 3 OF. Application of WG13A1 3. 6 WG with dosage of 25 - 35 g/667m2 could make wheat yield increase from 16.27% to 25.48%.