Effects of 30% Wettable Powder Mixed with Butachlor and Bensulfuron-methyl for Control of Weeds in Transplanted Rice Fields

Trials were conducted to evaluate the effects of wettable powder mixed with butachlor and bensulfuron-methyl on controling Echinochloa crusgalli(L.) Beauv,Monochoria vaginalis(Burm.F.) and Sagittaria pygmaea Mig,as well as the effects on crop yield and the absorption of nitrogen,phosphorus,kalium and moisture.The results showed that 30% wettable powder mixed with butachlor and bensulfuron-methyl had good control effect against the main weeds in transplanted rice fields.The overall density control effects and fresh control effects were 88.25～98.77%、83.59～99.32%,which were significantly higher than that of 10% bensulfuron-methyl WP,60% butachlor EC.The application of 30% butachlor + bensulfuron-methyl significantly increased the yield of rice,and was better than those compared herbicides.It has good application prospects in transplanted rice fields.