Effects of Wettable Powder Mixed with Acetochlor and Bensulfuron-Methyl for Control of Weeds in Seedling-Throwing Transplanted Rice Fields

To provide guidance for chemical weed management in seedling-throwing transplanted rice fields,trials were conducted to evaluate the effects on weed control and crop yield of a fertilizer formulation mixed with acetochlor and bensulfuron-methyl.The results showed that 10% acetochlor and bensulfuron-methyl WP had good control effects on Echinochloa crusgalli(L.) Beauv,Monochoria vaginalis(Burm.F.),Cyperus difformis L.in seedling-throwing transplanted rice fields.The overall fresh control effects and density control effects are 86.64%～99.08% and 89.88%～99.44% at 60～120 g(a.i)/hm2,and significantly higher than 50% acetochlor EC and 10% bensulfuron-methyl WP.The application of 10% acetochlor and bensulfuron-methyl WP significantly increased the yield of rice which was better than those control herbicides.It has good application prospects in seedling-throwing transplanted rice fields.