ICS65.020.20 CCSB61DB3311 浙江省丽水市地方标准 DB3311/T220—2022 长序榆种苗繁育技术规程 2022-07-26发布 2022-08-26实施 丽水市市场监督管理局  发布 DB3311/T220—2022 I目次 前言.......................................................................................................................................................................II 1范围...................................................................................................................................................................1 2规范性引用文件...............................................................................................................................................1 3术语和定义.......................................................................................................................................................1 3.1长序榆.......................................................................................................................................................1 3.1苗龄...........................................................................................................................................................1 4圃地建设...........................................................................................................................................................1 4.1圃地选址...................................................................................................................................................1 4.2基肥...........................................................................................................................................................1 4.3整地...........................................................................................................................................................1 4.4作床...........................................................................................................................................................1 4.5苗床消毒...................................................................................................................................................2 5播种育苗...........................................................................................................................................................2 5.1种子采集及处理.......................................................................................................................................2 5.2播种时间...................................................................................................................................................2 5.3播种量.......................................................................................................................................................2 5.4播种方法...................................................................................................................................................2 5.5播后管理...................................................................................................................................................2 6扦插育苗...........................................................................................................................................................2 6.1插床基质...................................................................................................................................................2 6.2插穗选择...................................................................................................................................................2 6.3插穗处理...................................................................................................................................................2 6.4扦插时间...................................................................................................................................................2 6.5扦插方法...................................................................................................................................................2 6.6插后管理......................................................