Petri dish and potted plant spraying methods were conducted to evaluate the combined action of nicosulfuron+ atrazine and nicosulfuron + 2,4-D butyl ester.

• 用培养皿法和盆栽喷雾法分别测定了烟嘧磺隆+莠去津、烟嘧磺隆+2,4-滴丁酯混用后的联合作用类型。