玉米是重要的粮食作物,近年来玉米播种面积不断增加。夏玉米的种植时期多在6月上旬,而夏季杂草出苗高峰在6月上旬至7月上旬,作物苗期正值杂草发生高峰期,易于造成草荒。据调查,玉米田草害面积占播种面积的90.1%,平均草害23.1%-40.0%,因杂草为害造成了巨大的经济损失。玉米田除草剂的应用是有效控制杂草危害、保证玉米丰产与丰收的重要保证,特别是河北宣化农药有限公司生产的40%乙莠悬浮剂(商品名称;宣化乙阿、玉米宝)在生产中应用普遍,除草效果显著,为此,我们将近几年来的试验结果进行一些总结。以使农民朋友掌握应用技巧,保证药效的充分 Corn is an important food crop, and the sown area of ​​maize has been increasing in recent years. Summer maize planting more in early June, and the summer weed emergence peak in early June to early July, the crop seedling is at a peak of weeds, easy to cause grassland shortage. According to the survey, grassland area in maize fields accounts for 90.1% of the sown area and the average grass loss is 23.1% -40.0%, causing huge economic losses due to weed damage. The application of herbicide in corn field is an important guarantee for controlling the weed harm effectively and ensuring the yield and harvest of corn, especially the 40% B herbicides (product name; Xuanhua B, cornbao) produced by Hebei Xuanhua Pesticide Co., In the application of universal, significant weeding effect, therefore, we will make some conclusions about the test results in recent years. To make farmers friends master the application skills to ensure full efficacy