DB43-T 2379-2022棉花-油菜轮作双直播技术规程

ICS65.020.20CCSB05 43湖 南 省 地 方 标 准DB43/T2379—2022棉花-油菜轮作双直播技术规程Technicalcodeofcotton-raperotationdoubledirectseeding20222022070820221008湖南省市场监督管理局发布1····················································································································21····················································································································2·····································································································3···········································································································4··············································································································5··································································································5.1········································································································5.2··············································································································5.3··············································································································5.4········································································································5.5·····································································································5.6········································································································5.7········································································································6··································································································6.1········································································································6.2··············································································································6.3··············································································································6.4·····································································································6.5········································································································7··············································································································11111122233333344447.1生产档案········································································································47.2投入品档案·····································································································47.3档案管理········································································································48参考文件··············································································································4附录A（规范性）生产档案···························································································5I目 次前言 Ⅲ前 言GB/T1.1—20201请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。本文件由湖南省农业农村厅提出。本文件由湖南省农业标准化技术委员会归口。本文件起草单位：湖南省棉花科学研究所、中国农业科学院棉花研究所、湖南生物机电职业技术学院。本文件主要起草人：李飞、梅正鼎、曾球、赵瑞元、郭莉莉、李彩红、何叔军、贺云新、李玉芳、李亚兵、吴碧波。棉花-油菜轮作双直播技术规程本文件规定了棉花-油菜轮作双直播的茬口衔接、棉花直播栽培管理、油菜直播栽培管理等要求。本文件适用于两熟区域的棉花-油菜轮作双直播栽培。（GB4407.11GB4407.22NY/T3638 DB43/T1550棉花化学农药减施增效技术规程3术语和定义3术语和定义下列术语和定义适用于本文件。3.1棉花-油菜轮作rotationofcottonandrape指在同一田块上有顺序地在季节间轮换种植棉花和油菜的种植方式。4茬口衔接530不晚于10月25日，湘南播种时间不晚于10月30日。5棉花直播栽培管理25cm1～2旋耕完毕，用灭生性或芽前除草剂全田喷施，封除杂草。110d20cmGB4407.1播前7d～15d，选晴好天气，将待播的种子置于背风向阳干燥处，晾晒2～3d；包衣种子不需晒种。播种每公顷75000株～105000株。选择晴天，用棉花专用旋耕施肥播种机实行作垄、开沟、播种、施肥、压实一次性完成，垄宽（包沟）1.52m，每穴播籽1粒～2粒，覆土1.5cm～2.0cm，行距76cm。播种后及时清沟，保持水路畅通。棉花出苗后缺株率不超过10％，不补苗、不间苗、不定苗；超过10％，视出苗情况补种、补苗。棉花出苗后缺株率不超过10％，不补苗、不间苗、不定苗；超过10％，视出苗情况补种、补苗。5.2.5播后除草播种后25d左右，视田间杂草种类和生长量，进行苗期除草。施肥中等肥力棉田，每公顷推荐肥料用量为N150kg～180kg、P2O575kg～90kg，K2O150kg～210kg。种肥同播，种肥间隔不低于5cm，肥料在种子侧下方10cm～15cm处。899％800～10001.0％～2.01～272台～3台果枝时化控1次，每公顷缩节胺用量7.5g～15.0g。田间见第一朵白花后1周内化控1次，每公顷缩节胺用量22.5g～30.0g。5.4.3化学封顶9～10250g/L540mL～810mL270mL～540mL100cm。参照DB43/T1550执行。50％450g～600g40％900mL～1200mL。根据田间的吐絮情况及时采收；棉花脱叶率不低于95％，吐絮率不低于90％，可进行一次性采收。耕深20cm。应用旋耕施肥播种机进行旋耕、开沟起垄，垄宽1.8m～2.0m。耕深20cm。应用旋耕施肥播种机进行旋耕、开沟起垄，垄宽1.8m～2.0m。00B2播前5d～7d晒种，选晴好天气，将待播的种子置于背风向阳干燥处，晾晒1d～2d。播种每公顷450000株～600000株。人工播种，每公顷种子用量3.5kg～4.5kg；机械免耕直播或无人机飞播，每公顷种子用量4.5～6.0kg。6.2.3播后除草播种后即进行封闭除草或在油菜苗期进行选择性化学除草。6.2.4清沟排水播种后，开好厢沟、腰沟和围沟，厢沟深不小于25cm，围沟腰沟不小于20cm。施肥N150kg～180kgP2O545kg～60kg、K2O45kg～75kg、10kg～12kg；氮肥、钾肥总量的60％和全部磷肥、硼肥用作基肥，20％～30％氮肥用于冬前提苗，10％～20％的氮肥和40％的钾肥作薹肥。参照NY/T3638执行。全田90％以上的角果变黄，部分呈浅褐色，分枝抬起，主枝顶端角果用手能轻易捏开，全株籽粒变色时，可采用机械一次性收获。7生产档案7生产档案。。档案由专职人员进行管理，随时整理并逐年归档，保存期限不少于3年。8参考文件DB43/T1729机采棉生产技术规程HNZ172 A.2施肥记录表A.3化控记录