ICS65.020.20 CCSB31DB/4208 荆门市地方标准 DB4208/T74—2022 早春大棚西瓜生产技术规程 Technicalregulationsforcultivationofwatermeloninearlyspringof tunnelhouse 2022-08-11发布 2022-08-11实施 荆门市市场监督管理局 发布 DB4208/T74—2022 Ⅰ目  次 前言.......................................................................................................................................................................III 1范围.....................................................................................................................................................................1 2规范性引用文件.................................................................................................................................................1 3术语和定义.........................................................................................................................................................1 4产地环境条件.....................................................................................................................................................1 5育苗.....................................................................................................................................................................1 5.1品种选择......................................................................................................................................................1 5.2播种前准备..................................................................................................................................................2 5.3播种..............................................................................................................................................................2 5.4嫁接..............................................................................................................................................................2 5.5嫁接苗愈合期管理.....................................................................................................................................3 5.6去除砧木萌蘖..............................................................................................................................................3 5.7成苗指标......................................................................................................................................................3 6大棚栽培.............................................................................................................................................................3 6.1栽前准备......................................................................................................................................................3 6.2定植..............................................................................................................................................................4 6.3定植后管理..................................................................................................................................................4 7病虫害防治.........................................................................................................................................................5 7.1主要病虫害..................................................................................................................................................5 7.2防治方法......................................................................................................................................................5 8采收.....................................................................................................................................................................5 8.1成熟度鉴别..................................................................................................................................................5 8.2采摘..............................................................................................................................................................5 9包装、贮运.............................................................................................