近年来,农田施用除草剂节省了大量的劳动力,因而被广大农民朋友所接受。但有些农户在用含“莠去津”成分的除草剂给玉米地除草时,由于喷药过量(或重喷),对下茬小麦造成第二次药害。“莠去津”(别名阿特拉津)是一种选择性内吸传导型苗前苗后除草剂(玉米封闭型除草剂均含有“莠去 In recent years, the use of herbicides in farmland has saved a lot of labor force and has been accepted by the majority of farmers and friends. However, some farmers use herbicide containing “atrazine” to weed out the cornfields, causing a second phytotoxicity to the next crop due to over-spraying (or re-spraying). “Atrazine” (alias atrazine) is a selective internal absorption-type pre-emergence post-emergence herbicide (corn-enclosed herbicide contains "atrazine