15%乙氧磺隆水分散粒剂对水稻直播田杂草的防效试验

Study on the Efficacy of 15%Ethoxysulfuron Water Dispersible Granules on Weeds in Direct Seeding Rice Fields

为了明确15%乙氧磺隆水分散粒剂(稻秀)对水稻直播田杂草的防除效果和适宜剂量,特开展了防效试验。结果表明,15%乙氧磺隆水分散粒剂在水稻4叶期后、杂草2~4叶期茎叶喷雾法施药,对鸭舌草、三棱草、飘拂草、水莎草等杂草具有显著的防除效果,且对水稻安全,是一种较好的防除水稻直播田杂草的除草剂。

In order to ascertain the control effect and suitable dosage of 15%ethoxysulfuron-methyl water dispersible granule on weeds in direct seeding rice field,and to provide scientific basis for its popularization and application,the efficacy and safety of 15%ethoxysulfuron water dispersible granule against weeds in direct seeding rice field were studied.The results showed that the application of 15%ethoxysulfuron-methyl water dispersible granule after 4-leaf stage of rice and after 2-4-leaf stage of weeds of rice was safe to rice,and had significant control effect on weeds It is a good herbicide for controlling weeds in direct seeding field of rice,because it is safe for rice and has significant control effect on weeds such as duck tongue grass,rhizoma sparganii weed fluttering grass and juncellus serotinus.