１９９６年起在山东省“三Ｏ”工程暨烟台市农作物新品种研究开发项目的推动下，我站对脱毒甘薯种苗繁育及高产栽培技术进行了探讨。１　早春温床育苗选择适合本地生产条件的脱毒种薯，于２月底３月初采用火炕、酿热物温床、电热温床、日光温室、塑料大棚等方式进行脱毒种苗繁 Since 1996, under the promotion of the “Three O” project in Shandong Province and the research and development of new crop varieties in Yantai City, we have explored the breeding and high-yielding cultivation techniques of virus-free sweet potato seedlings. 1 early spring hotbed seedling selection suitable for local production conditions of virus-free seed tubers, by the end of February early March using hot kang, hot stuffed hotbed, electric hotbed, solar greenhouse, plastic sheds and other methods of detoxification seedlings 繁