ICS65.020.20B05DB21辽宁省地方标准 DB21/T 2750—2017 水稻机械化栽培技术规程 Mechanization of Rice Planting Technology Procedures 2017-02-23发布2017-03-23实施辽宁省质量技术监督局发 布DB21/T 2750—2017目次前言 ............................................................................... III1范围 .............................................................................. 12规范性引用文件 .................................................................... 13术语和定义 ........................................................................ 13.1有效分蘖临界叶龄期............................................................14育苗 .............................................................................. 14.1播前准备 ...................................................................... 14.1.1育苗选址及建棚 ............................................................ 14.1.2育苗基质准备 .............................................................. 14.1.3秧盘选择 .................................................................. 24.2种子处理 ...................................................................... 24.2.1发芽试验 .................................................................. 24.2.2晒种 ...................................................................... 24.2.3除芒 ...................................................................... 24.2.4浸种消毒 .................................................................. 24.2.5催芽 ...................................................................... 24.3播种 .......................................................................... 24.3.1播期 ...................................................................... 24.3.2播量 ...................................................................... 24.3.3播种方法 .................................................................. 24.3.4秧盘摆放 .................................................................. 24.3.5防治地下害虫 .....