Study on the Control Effect of Different Herbicides on Gramineous Weed in Wheat Field

In order to study the control effect of different herbicides on gramineous weed in wheat field, four insecticides were used to evaluate the safety, control effect and wheat yield. The results showed that all the four agents were safe for wheat within the designed dose range. The control effect of the four agents on weeds in wheat field was above 65% at 15 d after administration, and above 80% at 30 d after administration. Among them, 5% zoline and acetylide emulsion 80 mL/667 m~2had the best effect, and the control effect of 15 and 30 days after treatment were 90.49% and 93.51%, respectively. Followed by 30 g/L methyldisulsulfuron dispersed oil suspension 30 mL/667 m~2, 15 days after the drug and 30 days after the drug control effect of 86.39% and 91.26%, respectively. Therefore, the use of 5% zoline and acetylide emulsifiable oil 80 mL/667 m~2and 30 g/L methyldisulon dispersive oil suspended 30 mL/667 m~2for weed control in wheat fields can be alternated to avoid the occurrence of resistance.