来源:安青网 | 2023-01-13 15:39:50 |
(资料图片)
又一波寒潮来袭,亳州市农业农村局发布蔬菜抗寒防冻减灾技术指导意见,全力做好蔬菜生产强冷空气防御等工作,为春节期间蔬菜等“菜篮子”产品稳定供应提供保障。
做好蔬菜抗灾减损准备工作。提高抗灾减损意识,通过广播、电视、手机短信、微信等方式,增强安全生产和风险防范意识;完善基地设施条件,及时清理棚沟,加固大棚设施,调试好加温补光设备。
合理采取抗灾减损应对措施。采取多层覆盖保温,减少通风时间,进行人工增温,以应对寒潮降温天气;将压膜绳在拱杆间压紧加密,关闭通风口、门口,以应对大风天气;加固修整棚室,提前准备好扫雪工具,连栋棚要闭好四周棚膜,适当进行加温,以应对降雪天气;白天中午揭开草帘见光,及时清扫或冲洗棚膜,开启补光增温设施,减少或停止浇水追肥,及时采摘瓜果,以应对雾霾及寡照天气;通过缓慢升温、人工喷水、及时剪去受冻的茎叶和果实、喷洒药剂等方式,做好蔬菜受冻后的应对。
突出抓好设施蔬菜田间管理。光照管理方面,清洁膜面,晴好天气及时揭掉保温材料,及时整枝落蔓并摘除病叶、老叶;温度管理方面,覆盖地膜,增设多层覆盖,增设加温设施,控制好保温材料的揭盖时间;水肥管理方面,不旱不浇,浇水要选择晴天中午,追肥以腐熟的有机肥和生物菌肥为主,推广使用水肥一体化设施和技术;气体管理方面,气温较高时应注意通风换气,有条件的园区适时增施二氧化碳气肥;植株管理方面,及时整枝、打杈、剪老叶,适当疏花疏果,及时剪去受冻的茎叶,叶面喷施全营养叶面肥;病虫害绿色防控方面,做好农艺防控、物理防控、生物防控、化学防控;成熟蔬菜要抢在寒潮来临前及时采收。
做好露地蔬菜防灾减损。越冬露地蔬菜应尽早腾茬耕翻冻垡或晒垡,抓紧培肥播栽;适时浇透越冬水,提高作物抗寒能力;严冬到来前,检查菜田地膜覆盖情况;霜冻前要保持土壤湿润,喷施叶面肥,撒施作物秸秆或腐熟有机肥;降温幅度较大时,夜间加盖草帘、薄膜、遮阳网、秸秆等,减轻冻害。
记者 李鹏 通讯员 王森
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