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小麦是我县主要粮食作物,常年种植面积39万亩左右,麦田杂草发生面积20万亩以上。麦田阔叶杂草主要有播娘篙、灰黎、田旋花、马齿笕、刺儿菜等,其中播娘篙占杂草总发生面积的90%以上,对冬小麦为害逐年加重。虽然化学除草速度快、除草及时、效果好,但是化学除草剂品种很多、防除效果各异,在选用除草剂时必须紧密结合当时的士质情况、气候特点及麦田的杂草群落,才能取得理想的除草效果。为了筛选出高效、安全、经济的除草剂种类,进一步示范推广提供依据,我们特安排了此项试验,
Wheat is my county’s main food crops, perennial planting area of about 39 acres, wheat weeds occurred area of 200000 acres and above. Broadleaf weed broadleaf broadleaf weeds, ashes, field Convolvulaceae, horseshoe crab, spiny vegetables, etc., of which broadcast sow accounted for more than 90% of the total area of weeds, the damage to the winter wheat increased year by year. Although chemical weeding speed, weeding timely, the effect is good, but a lot of chemical herbicides, prevention and control of different effects, the selection of herbicides must be closely integrated with the current temperament, climatic characteristics and wheat fields weed communities to achieve the desired Weeding effect. In order to screen out the efficient, safe and economical herbicide species and provide the basis for further demonstration and promotion, we arranged this experiment,