近年早稻这一新的栽培作物种植面积不断扩大，但早稻田杂草发生种类多，数量大，尤其是恶性杂草千金子的发生严重影响旱稻的高产。为此，我们引进由美国陶氏益农公司生产的 １０％千金，针对恶性杂草千金子进行了不同用量的除草试验。１材料与方法 试验设每亩用１０％千金４０ In recent years, the planting area of ​​early rice, a new cultivated crop, has been continuously expanding. However, the occurrence of weeds in the early rice fields is numerous and large in number. In particular, the occurrence of weeds in the weeds severely affects the high yield of upland rice. To this end, we introduce the 10% daughter produced by Dow AgroSciences in the United States to conduct weeding experiments on different amounts of weeds. 1 Materials and Methods Experimental set up 10% per mu 40