我场位于江汉平原以北的丘陵地带,土质为黄粘土,人少地多。夏季芝麻地杂草种类多,生长快,若遇到阴雨连绵的年份,常毁种无收。我们从1980年起连续7年使用除草剂拉索防除芝麻地杂草,试验示范面积达3万余亩,终于控制了杂草的为害。通过7 My field is located in the hilly area north of the Jianghan Plain, soil is yellow clay, less people and more land. Summertime sesame weeds species more rapid growth, in case of continuous rainy years, often destroyed without income. We have been using weed control herbicides for controlling weeds in sesame for seven years in a row for a consecutive 7 years since 1980, with a demonstration area of ​​more than 30,000 mu and finally the weed control. Through