黑龙江农垦种植大豆每年66.67万公顷左右,化学除草基本占95%以上,其中苗前土壤处理占80%以上。据建三江地区统计,乙草胺+豆磺隆+2,4-Ｄ丁酯这个配方颇受欢迎。从1994年开始示范,到目前为止,七年累计示范面积11.44万公顷,近几年每年基本稳定在2万公顷左右。该配方具体为:50%乙草 Heilongjiang Land Reclamation Planting 66.67 million hectares of soybeans each year, chemical weeding basically accounts for more than 95% of which pre-emergence soil treatment accounted for more than 80%. According to the statistics of Sanjiang area, acetochlor + besulfuron + 2,4-D butyl ester is a popular recipe. Starting from the demonstration in 1994, so far, the accumulated demonstration area in the past seven years has reached 114,400 hectares, which has basically stabilized at about 20,000 hectares per year in recent years. The formula specifically: 50% acetochlor