化学除草是目前稻田草害防治的重要手段之一。化学除草劳动强度小、除草及时、工效高、效果显著、成本低,经济、社会、生态效益都较高。近几年,随着农村劳动力大量向城镇转移,劳动力缺乏普遍存在,土地的流转集中度越来越高和水稻规模化种植的不断发展。广大农户特别是种植大户对农资产品的需求发生了巨大变化,这一方面大大促进了稻田化学除草技术的迅速普及和应用。目前双草醚的生产企业不少,商标名也繁多,然而市面上出售的商品 Chemical weeding is one of the important means of prevention and control of paddy grass damage. Chemical weeding labor intensity is small, weeding timely, high work efficiency, significant effect, low cost, economic, social and ecological benefits are higher. In recent years, with the transfer of a large number of rural labors to cities and towns, the lack of universal labor force, the increasingly concentrated flow of land and the continuous development of large-scale rice cultivation. The vast majority of farmers, especially big growers, have undergone tremendous changes in the demand for agricultural products. On the one hand, this has greatly promoted the rapid popularization and application of chemical weed-cutting techniques in paddy fields. At present, many manufacturers of bispyribac, many brand names, but the market for sale of goods