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除草剂对作物的安全性应包括两个方面:除草剂对当季作物的安全性及对后茬作物的安全性。近年来,某些除草剂因使用不当,对后茬作物造成药害,给生产造成损失。现就几种除草剂对后茬作物的影响加以介绍。快杀稗(二氯喹啉酸) 据美国报道,快杀稗施用后309天内除水稻外不能种任何作物;12个月之内不能种茄子、烟草;2年内不能种番茄、胡萝卜,伞形花科作物如胡萝卜、芹菜、香菜等对快杀稗敏感,应注意不要引起飘移药害,不能用施过快杀稗的水灌上述蔬菜。赛克(甲草嗪、嗪草酮) 据美国报道,每公顷施有效成
The safety of herbicides on crops should include two aspects: the safety of herbicides on the current crop and the safety of the following crops. In recent years, due to improper use of certain herbicides, phytotoxicity has been caused to the crops of succeeding crops, causing losses to production. Now on the effect of several herbicides on the crop after the crop is introduced. According to the U.S. report, barnyardgrass (quinclorac) was reported to not be able to plant any crops except rice within 309 days after application of barnyardgrass. Tomato, carrot and umbellatus could not be planted for 2 years Crops such as carrots, celery, parsley and other sensitive to fast barnyard grass, should be careful not to drift drift caused by injury, can not be applied fast barnyard water irrigation above the vegetables. Saikai (methlazine, metribuzin) According to the United States reported that per hectare effective into