不同药剂控制机插秧田杂草药效研究

Study on Effect of Several Herbicides on Machine Transplanting Nursery Weeds

研究几种不同药剂控制机插秧田杂草效果,结果表明:25 g/L五氟磺草胺油分散制剂1 200~1 800 m L/hm^2和6%五氟·氰氟草油分散制剂3 000 m L/hm^2施药后15 d对机插秧田杂草的防效均超过91.23%,30 d的防效超过91.65%;结合施药后水稻情况,采用25 g/L五氟磺草胺油分散制剂1 200~1 800 m L/hm^2或6%五氟·氰氟草油分散制剂3 000 m L/hm^2于机插水稻封行前施药1次,可有效控制机插秧田杂草。

Effect of several kinds of different medicament on machine transplanting nursery weeds was studied.The results showed that after 25 g/L FENCER OD t 200-1 800 mL/hm2 and 6% RICER OD 3 000 mL/hm2 spraying 15 days of machine in nursery weed control effect exceeded 91.23%, 30 d control effect was more than 91.65% ; combined with the rice after application by 25 g/L FENCER OD 1 200-1 800 mL/hm2 or 6% RICER OD 3 000 mL/hm2 in machine in rice sealed could effectively control the machine transplanting nursery weeds.