Isoproturon can control weeds such as barley, precocious barley, and auntia. The use of this drug to control early crops in wheat fields, before the weeds 3 leaf stage control effect is better, after the weeds in the 3 leaf stage after the use of drugs to control efficacy decreased, even if the amount of medication often can not effectively kill it. In the spring before the jointing of wheat, you can use methylsulfuron-methyl control, pay attention to the use of instructions strictly according to the product, so as to avoid phytotoxicity.