ICS65.020.01CCSB60DB21辽宁省地方标准DB21/T3939—2024银中杨扦插育苗技术规程TechnicalregulationsforcuttingpropagationofPopulusalba×berolinensis2023-03-30发布2024-04-30实施辽宁省市场监督管理局发布DB21/T3939—2024I目次前言.................................................................................II1范围...................................................................
