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1除草剂药害的类型1.1前作残留药害前作用的除草剂残效期长或超长,或超量对后作产生的药害。1.2当季药害又分苗前和苗后两种,主要是除草剂选择不当,用量超量、措施不当引发的药害。2除草剂药害的诊断与恢复技术前茬大豆田使用咪唑乙烟酸。施过咪唑乙烟酸的地块第2年种水稻有药害。苗床育苗、本田插秧可导致稻苗死亡,24个月后种水稻安全。前茬玉米田使用莠去津(阿特拉津)在有效量超过2 000g/hm~2,即38%的莠去津
A type of herbicide phytotoxicity 1.1 before the residual pesticides before the role of herbicides residual long or too long, or excessive after injury to phytotoxicity. 1.2 Seasonal injury is divided into two kinds before and after seedling, mainly the improper selection of herbicides, excessive dosage, improper measures caused by injury. 2 Herbicide phytotoxicity diagnosis and recovery techniques before the use of soybean fields imazapyr. The first 2 years of rice that has been treated with imazethapyr has phytotoxicity. Seedling nursery, Honda transplanting can lead to death of rice seedlings, 24 months after planting rice security. Atrazine (atrazine) was used in the first crop of corn crop at an effective dose of more than 2 000 g / hm 2, or atrazine