Effects of 34.5% Wettable Powder Mixed with Pyrazosulfuron and Quinclorac for Control of Weeds in Transplanted Rice Fields

The weed of 34.5% pyrazosulfuron + quinclorac WP and effects on weed control,crop yield,as well as the variety discipline of the absorption of nitrogen,phosphorus,kalium and moisture in transplanted rice fields were studied.The results showed that 34.5% pyrazosulfuron + quinclorac WP had good control effect against the main weeds in broadcasted rice fields.The overall density control effects and fresh control effects were 90.33%～100.00%,91.72%～100%,significantly higher than that of 10% WP,10% pyrazosulfuron WP and 50% quinclorac WP.The application of 34.5% pyrazosulfuron + quinclorac WP significantly increased the yield of rice,which was higher than that of the control herbicides.