ICS 65.020.20 CCS B 32 DB 42 湖北省 地方标准 DB42/T 2004—2023 棉花-油菜双直播机械化生产技术规程 Code of practice for mechanization production of rotaion of cotton and rape both direct seeding 2023 - 04 - 12发布 2023 - 06 - 12实施 湖北省市场监督管理局 发布 DB42/T 2004 —2023 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 基本要求 ................................ ................................ ........... 1 茬口安排 ................................ ................................ ....... 1 机械 ................................ ................................ ........... 1 种子质量 ................................ ................................ ....... 1 5 棉花生产 ................................ ................................ ........... 2 播种 ................................ ................................ ........... 2 5.1.1品种选择 ................................ ................................ ..... 2 5.1.2 整地 ................................ ................................ ....... 2 5.1.3 机械播种 ................................ ................................ ... 2 5.1.4 行距及播种量 ................................ ............................... 2 5.1.5 封闭除草 ................................ ................................ ... 2 5.1.6 补种 ................................ ................................ ....... 2 田间管理 ................................ ................................ ....... 2 5.2.1 施肥 ................................ ................................ ....... 2 5.2.2 杂草管理 ................................ ................................ ... 3 5.2.3 化学调控与封顶 ................................ ............................. 3 5.2.4 水分管理 ................................ ................................ ... 3 收获 ................................ ................................ ........... 3 5.3.1 脱叶催熟 ................................ ................................ ... 3 5.3.2 机械收获 ................................ ................................ ... 3 5.3.3 秸秆还田 ................................ ................................ ... 3 6 油菜生产 ................................ ................................ ........... 3 播种 ................................ ................................ ........... 3 6.1.1 品种选择 ................................ ................................ ... 3 6.1.2 种子处理 ................................ ................................ ... 3 6.1.3 免耕套播 ................................ ................................ ... 4 6.1.4 联合播种 ................................ ................................ ... 4 6.1.5 合理密植 ................................ ................................ ... 4 田间管理 ................................ ................................ ....... 4 6.2.1 施肥 ................................ ................................ ....... 4 6.2.2 水分管理 ................................ ................................ ... 4 6.2.3 化学调控 ................................ ................................ ... 4 6.2.4 草害防治 ................................ ................................ ... 4 DB42/T 2004 —2023 II 6.2.5 菌核病防治 ................................ ................................ .. 4 6.2.6 虫害防治 ................................ ................................ .... 4 收获 ................................ ................................ ............ 5 6.3.1 两段收获 ................................ ................................ .... 5 6.3.2 联合机收 ................................ ................................ .... 5 附录A（资料性） 棉花-油菜双直播机械化生产油菜主要草害、虫害防治方法 ..................