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在温室盆栽条件下,以马唐、反枝苋为试材,采用Gowing法测定了烟嘧磺隆与氰草津复配的联合作用,并对实验室制得的20%烟嘧磺隆.氰草津油悬浮剂进行了大田生物活性评价试验。结果表明,烟嘧磺隆与氰草津复配后对马唐有增效作用,对反枝苋属于相加作用,两者适宜复配,配比为1～4:12.5。于玉米3～5叶期、杂草2～5叶期喷施20%烟嘧磺隆.氰草津油悬浮剂180～300g/hm2,药后30d的杂草总株防效及鲜重防效分别为83.6%～94.3%、92.7%～99.2%,对玉米安全性较好,玉米株高、产量均大于人工除草处理;在玉米7叶期及杂草5叶期以后施用该药剂,玉米的安全性及杂草株防效均出现下降。
Under the condition of greenhouse potted plants, Cunninghamia Lanceolata and Amaranthus retroflexus were used as materials to determine the combined action of nicosulfuron and cyanuric acid by Gowing method, and the 20% nicosulfuron and cyanidin Strawberry oil suspending agent was evaluated in field activity. The results showed that nicosulfuron and cyanuric sulfate compound had synergistic effect on Crabgrass and additive effect on Cv. Amaranthus retroflexus, the two were suitable compounding ratio of 1 ~ 4: 12.5. In the 3 ~ 5 leaf stage of corn, 20 ~ 5% of nicosulfuron was sprayed on the leaves of 2 ~ 5 of weeds.Control effect of fresh weeds with 180 ~ 300g / hm2, Respectively, which were 83.6% -94.3% and 92.7% -99.2%, respectively. The safety of maize was better, and the plant height and yield of maize were higher than that of artificial weeding treatment. Safety and weed control plant decreased.