不同配比除草剂燕麦除草研究初探

Preliminary Study on Control Effect of Different Proportions of Herbicides on Weeds in Oat Fields

为了解决燕麦生产中日益突出的草害问题,通过对燕麦进行不同配比的除草剂应用试验,测得用药后各处理杂草鲜重和小区产量,并以此数据测算各处理杂草防效和产量挽回损失率,经方差分析评价各配比除草剂,选出多个较好的配方。其中二甲戊乐灵播后苗前处理和草酮播后苗前处理对单子叶杂草、双子叶杂草的防效及小区产量挽回损失率均与人工除草对照无差异,同时又显著好于无药剂对照。

Weed problems are becoming more serious in oats production. An experiment was established to evaluate differ ent proportions of herbicides by determining weed fresh weight and oats yield, calculating the control level and crop yield loss reduction, and evaluating the herbicides by variance analysis. Pendimethalin and oxadiazon applied after sowing but before seedling emergence were comparable to hand weeding for the control of both monocotyledonous and dicotyledonous weeds and similarly reduced yield loss ratio, and were more significantly effective than the no chemical treatment.