为了便于机械收获,甘蔗施2,4-D以防除牵牛花有时是必要的。但这种方法对收获种用蔗可能有不利的影响。1983年在路州拿破仑村的格伦伍德种植园和1984年在路州圣加布里埃尔的圣加布里埃尔研究站,就2,4-D对蔗种的萌发及其后的产量进行了调查。1983年在收获前2周和5周和1984年在收获前3周和6周用2,4-D(有效成份2.0磅/英亩)处理了9个品种。在6月份 In order to facilitate mechanical harvesting, sugarcane application of 2,4-D to prevent morning glory is sometimes necessary. However, this method may adversely affect harvesting of sugarcane. The Glenwood Plantation in Napoleon, Louisiana, and the San Gabriel Research Station, San Gabriel, Luzhou, 1984, investigated the germination of 2,4-D sugarcane and its subsequent yield . Nine varieties were treated with 2,4-D (active ingredient 2.0 lb / acre) in 1983 at two and five weeks prior to harvest and at three and six weeks prior to harvest. In June