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试验结果表明,42%丁草胺·噁草酮EC在水稻旱直播田播后苗前施药,可有效地防除稗草、千金子、鸭舌草、陌上菜、异型莎草等禾本科杂草、阔叶杂草和莎草科杂草,用药量1500～1875mL/hm2,施药后45d对各类杂草总草株防效、鲜重防效均达86%以上,显著高于对照药剂60%丁草胺EC1500mL/hm2、25%噁草酮EC1500mL/hm2及人工除草处理。42%丁.噁EC在水稻旱直播田播后苗前施药,对水稻出苗有一定的影响,但施药后30d,42%丁.噁EC处理区与对照药剂处理区及人工除草处理区水稻长势无差异,其经济有效用量为1500～1875mL/hm2。
The results showed that 42% butachlor · oxadiazocine EC could be applied to seedlings before planting in dry seeding rice field, which could effectively control gramineae such as barnyardgrass, cadmium, monocotyledon, Weeds, broadleaf weeds and sedge weeds, the dosage 1500 ~ 1875mL / hm2, 45d after application of all kinds of weeds on the total plant control effect, the fresh weight control effect reached more than 86%, significantly higher than Control agent 60% butachlor EC1500mL / hm2, 25% oxadiazocine EC1500mL / hm2 and artificial weeding treatment. 42% d.Ec.E.D. was applied to the seedlings before and after sowing the rice in direct seeding rice field, which had some effects on the emergence of rice plants. However, 30 days after the application, 42% of the EC and the control herbicide treatment area There is no difference in the growth of rice, its economic effective amount is 1500 ~ 1875mL / hm2.