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近年来,我省移栽稻田化学除草面积每年约120万公顷以上,目前应用的除草剂主要是除草醚。由于除草醚除草效果差以及存在毒性方面的问题,美国、日本、加拿大等许多国家已撤消了该药的登记。我省迫切需要以一种治性高,杀草谱广,药效长,对水稻安全、经济的除草剂取代除草醚。 1986～1987年,我们用镇江农药厂生产的5％丁草胺颗粒剂在水稻秧田、旱直播稻田和移栽稻田进行了田间小区试验,同时在江苏、上海市郊等10多个地区的移栽稻田进行了千亩以上示范,取得了良好的效果。
In recent years, the area of chemical weed-planting in transplanting rice fields in our province is about 1.2 million hectares annually, and the herbicides currently used are mainly weeding ethers. Due to the poor herbicide weeding and toxicity problems, the United States, Japan, Canada and many other countries have already withdrawn their registration. The urgent need for our province to a high governance, to kill grass broad spectrum, long-term efficacy, the rice safe and economical herbicide to replace weed ethers. From 1986 to 1987, field experiments were conducted on 5% butachlor granules produced by Zhenjiang Pesticide Factory in paddy field, dry-planting paddy field and transplanting paddy field. At the same time, transplanting was carried out in more than 10 areas such as Jiangsu and Shanghai suburbs Rice fields conducted a demonstration of more than acres, and achieved good results.