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水稻出现葱心苗怎么办
更新时间: 2020-09-18 00:00:00  

1、适期用药,在水稻三叶期后使用二氯喹啉酸,36%二氯苄可湿性粉剂每667平方米用量80至90克,或50%吡嘧二氯喹啉酸粉剂50至60克为宜;

2、规范用药,用药前田水放干,使杂草整株受药,药后24小时内不上水,保证药物被杂草充分吸收,施药时注意不能重喷;

3、及时采取补救措施,对已经发生二氯喹啉酸药害的稻田,应及时采取措施促进秧苗恢复生长,可在田间撒施复合锌肥,也可以喷施叶面肥、植物生长调节剂等,常用的有芸苔素、动力2003等,处理后10至15天卷叶虽不能完全张开,但新生叶生长良好,并结合适当增施尿素,促使稻苗多分蘖。

关键词: 水稻 出现 怎么办

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