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寒潮降雪极寒恶劣天气下,冀北设施蔬菜如何抓好生产?
2023-12-20 来源:燕赵农村报 阅读量:59 评论:0
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ntent="[{"type":"block","id":"3060-1621846615933","name":"heading","data":{"version":1,"level":"h1"},"nodes":[{"type":"text","id":"p5PQ-1621846617594","leaves":[{"text":"","marks":[{"type":"bold"},{"type":"color","value":"#021eaa"},{"type":"backgroundColor","value":"rgb(255, 250, 237)"},{"type":"fontSize","value":12},{"type":"fontFamily","value":"Arial"}]}]}],"state":{}},{"type":"block","id":"yYL7-1703054067877","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"JJ9n-1703054067876","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"NBfU-1703054067880","name":"paragraph","data":{"version":1,"style":{"textAlign":"center"}},"nodes":[{"type":"text","id":"qtvJ-1703054067879","leaves":[{"text":"寒潮降雪极寒恶劣天气下","marks":[{"type":"color","value":"#021eaa"},{"type":"bold"},{"type":"fontSize","value":18}]}]}],"state":{}},{"type":"block","id":"kLJn-1703054067882","name":"paragraph","data":{"version":1,"style":{"textAlign":"center"}},"nodes":[{"type":"text","id":"xxyg-1703054067881","leaves":[{"text":"冀北设施蔬菜如何抓好生产","marks":[{"type":"color","value":"#021eaa"},{"type":"bold"},{"type":"fontSize","value":18}]}]}],"state":{}},{"type":"block","id":"ubUG-1703054067883","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"C0Gx-1703054067784","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"mz0i-1703054067885","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"xfXU-1703054067884","leaves":[{"text":"当前冀北地区设施蔬菜正处于开花结果期,在寒潮降雪极寒天气下,蔬菜容易出现长势减慢、停滞或滋生病害等情况,进而影响产量及品质。广大菜农要切实做好大风寒潮降温及降雪等天气的防范工作,尽量将可能产生的损失降低到最低。为此,燕赵农村报组织技术人员总结以下技术措施: ","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"aI8I-1703054067886","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"dEFF-1703054067787","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"iXXv-1703054067887","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"uvQc-1703054067788","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"6ayR-1703054067982","name":"image","data":{"version":1,"url":"https://note.youdao.com/yws/res/1448/WEBRESOURCEe4c97154a38b701f45cee98197b55318","width":800,"height":600},"nodes":[],"state":{"renderSource":"https://note.youdao.com/yws/res/1448/WEBRESOURCEe4c97154a38b701f45cee98197b55318","initialSize":{"width":800,"height":600},"loading":false}},{"type":"block","id":"Go23-1703054067890","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"9LoV-1703054067889","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"gUNs-1703054067892","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"1Esb-1703054067891","leaves":[{"text":"一、提前防范","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"lE40-1703054067894","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"P0Mv-1703054067893","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"gJ9k-1703054067896","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"Yrfm-1703054067895","leaves":[{"text":"建议菜农在设施生产管理中,密切关注天气变化,结合天气情况开展农事操作,尤其要提前做好应对大风降温及连续阴雪天气的应对举措,做到有备无患。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"s86I-1703054067898","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"yKkX-1703054067897","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"sA1l-1703054067900","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"IDBB-1703054067899","leaves":[{"text":"(一)加固棚室。","marks":[{"type":"color","value":"#000000"},{"type":"fontSize","value":17}]},{"text":"菜农要尽快检查设施棚室是否有损坏、墙体坍塌、钢管断裂等现象,尤其是平泉、双滦、兴隆等老旧棚室区,如存在风险,可采取支立柱及换拱架的方式进行加固。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"5W2y-1703054067903","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"N3AI-1703054067901","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"nXLA-1703054067905","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"TBFk-1703054067904","leaves":[{"text":"(二)检查棚膜棉被。","marks":[{"type":"color","value":"#000000"},{"type":"fontSize","value":17}]},{"text":"要检查棚膜、棉被是否受损,有破损的要及时修补。大风天气来临时,要及时关闭风口,并借助棉被来压实风口,以免大风造成棚膜撕裂。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"McPO-1703054067907","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"XU8f-1703054067906","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"2Cjz-1703054067909","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"ugrK-1703054067908","leaves":[{"text":"(三)检查基地的供电线路。","marks":[{"type":"color","value":"#000000"},{"type":"fontSize","value":17}]},{"text":"对老化的基地,要及时切断电源,以免电线短路引起火灾、造成人身伤害等事件。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"wx9X-1703054067911","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"yWi4-1703054067910","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"PtNG-1703054067913","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"T8Fw-1703054067912","leaves":[{"text":"(四)做好降雪清理及人工补光的准备。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"yCWN-1703054067915","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"Labc-1703054067914","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"UNl4-1703054067983","name":"image","data":{"version":1,"url":"https://note.youdao.com/yws/res/1449/WEBRESOURCE01703054075661","width":500,"height":400},"nodes":[],"state":{}},{"type":"block","id":"RH9r-1703054067918","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"QzVu-1703054067917","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"5jCS-1703054067920","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"Sz8M-1703054067919","leaves":[{"text":"二、做好保温工作 ","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"0pKZ-1703054067922","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"hCdV-1703054067921","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"Yq56-1703054067924","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"BJqU-1703054067923","leaves":[{"text":"大风强降温及降雪常常会引起蔬菜遭遇冷害和冻害,尤其是在夜间温度过低的情况下更为显著,为此,做好保温工作尤为必要。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"dl6G-1703054067926","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"TNKI-1703054067925","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"0new-1703054067928","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"anKJ-1703054067927","leaves":[{"text":"1.合理调整揭盖棉被的时间。菜农可以采取较平常晚一小时打开棉被,下午早一小时遮盖棉被的方式,贮存更多的热量。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"5Pox-1703054067931","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"DRtP-1703054067930","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"3lli-1703054067933","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"GoxS-1703054067932","leaves":[{"text":"2.加盖棉被或草苫及二层膜等。在棚室的前脚或者东西墙与棚膜连接处加盖棉被,或者在设施内部前沿、植株上部、走廊处搭一层棚膜,实现双层覆盖,采取“晚上遮盖、白天揭开”的方式,应对晚上低温,提高保温效果。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"yj2Z-1703054067935","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"zXmS-1703054067934","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"Zz1k-1703054067937","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"UKN6-1703054067936","leaves":[{"text":"3.采取人工加温。有条件的农户可以采取加温块、电暖气、生物质炉等加温设备进行夜间加温,确保设施内夜间最低温度在8℃以上。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"TcQC-1703054067939","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"xWa5-1703054067938","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"7ekF-1703054067941","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"ptRz-1703054067940","leaves":[{"text":"三、做好光照管理 ","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"id1g-1703054067943","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"HRT1-1703054067942","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"zefk-1703054067945","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"GTz6-1703054067944","leaves":[{"text":"降雪等天气常伴随阴天,此时光照比较弱,植株光合速率降低,加上低温容易造成根系活力差,因此要保持植株见光,保证植株的光合作用。有条件的可以采取人工补光的方式增加光照。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"zDhl-1703054067947","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"wbAx-1703054067946","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"EbYm-1703054067949","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"EYez-1703054067948","leaves":[{"text":"四、做好水肥管理","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"Ys1L-1703054067951","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"jHC8-1703054067950","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"DTIz-1703054067953","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"mL6k-1703054067952","leaves":[{"text":"冬季严格控制浇水,在阴雪和大风降温天气尽量不要浇水,以免地温降低,增加空气湿度。如果极端天气时间较长,可采取浇小水的方式,在浇水的同时配合施用生物菌肥、腐植酸肥及氨基酸等有利于生根的肥料,加强植株营养,提高植株抗性,通过喷施叶面肥以及植物源生长调节剂等措施,给植株补充营养。同时要控制好棚室内湿度,中午湿度较高时,可以根据实际情况进行短暂通风;在防治病虫害时,减少使用水剂,尽量选用合适的烟雾剂量,在减少棚室湿度,防治病虫危害的同时,还可以提高棚室的温度。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"pptv-1703054067955","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"4Gka-1703054067954","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"nlGX-1703054067957","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"UDDK-1703054067956","leaves":[{"text":"五、做好田间管理","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"Wv6M-1703054067960","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"FGGq-1703054067958","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"7nMl-1703054067962","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"ihi0-1703054067961","leaves":[{"text":"对长势较弱或结果较多的蔬菜要及时进行采收,并适量疏花疏果,减少果实对植株养分的消耗,维持植株较强的长势;及时进行整枝打杈,摘除老病残叶,改善棚内通风和光照条件。同时,要及时清理积雪,如果是中小雪,可采取雪后清理的策略;如果是大雪,要做到边下边清理。为了操作简单,也可以在下雪前用旧棚膜加盖在草苫或棉被上,既方便扫雪还可防止雪融化后浸湿草苫或棉被。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"Ck0C-1703054067964","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"4vOJ-1703054067963","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"eTAI-1703054067966","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"Aih8-1703054067965","leaves":[{"text":"六、设施蔬菜受冻后的补救措施","marks":[{"type":"color","value":"#021eaa"},{"type":"fontSize","value":17},{"type":"bold"}]}]}],"state":{}},{"type":"block","id":"R4dw-1703054067968","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"Gb4w-1703054067967","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"Bz1g-1703054067970","name":"paragraph","data":{"version":1,"style":{"textIndent":56}},"nodes":[{"type":"text","id":"zW3C-1703054067969","leaves":[{"text":"在设施蔬菜受冻后,应注意做好日常管理,一是缓慢升温,叶面喷施速效性肥料,增加植株营养吸收;二是及时将受害的植株叶片及果实清理出棚室,避免增加病虫危害;三是适度进行人工喷水,增加空气湿度,稳定棚室内温度,降低植株受冻组织缺水的风险;四是情况严重的棚室,可以补栽一些生长期短的叶菜类的作物,减少经济损失。","marks":[{"type":"fontSize","value":17}]}]}],"state":{}},{"type":"block","id":"SwJX-1703054067972","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"FimI-1703054067971","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"O8H7-1703054098576","name":"paragraph","data":{},"nodes":[{"type":"text","id":"eAXu-1703054098577","leaves":[{"text":"","marks":[]}]}],"state":{}},{"type":"block","id":"7J18-1703054067978","name":"paragraph","data":{"version":1},"nodes":[{"type":"text","id":"mvcA-1703054067977","leaves":[{"text":"作者:河北省蔬菜产业技术体系承德综合试验推广站 刘斯超 郑鹏婧 王玉宏","marks":[{"type":"color","value":"#888888"}]}]}],"state":{}}]">
        当前冀北地区设施蔬菜正处于开花结果期,在寒潮降雪极寒天气下,蔬菜容易出现长势减慢、停滞或滋生病害等情况,进而影响产量及品质。广大菜农要切实做好大风寒潮降温及降雪等天气的防范工作,尽量将可能产生的损失降低到最低。为此,燕赵农村报组织技术人员总结以下技术措施: 
 
 
 
0
 


一、提前防范
 
        建议菜农在设施生产管理中,密切关注天气变化,结合天气情况开展农事操作,尤其要提前做好应对大风降温及连续阴雪天气的应对举措,做到有备无患。
 
        (一)加固棚室。菜农要尽快检查设施棚室是否有损坏、墙体坍塌、钢管断裂等现象,尤其是平泉、双滦、兴隆等老旧棚室区,如存在风险,可采取支立柱及换拱架的方式进行加固。
 
        (二)检查棚膜棉被。要检查棚膜、棉被是否受损,有破损的要及时修补。大风天气来临时,要及时关闭风口,并借助棉被来压实风口,以免大风造成棚膜撕裂。
 
        (三)检查基地的供电线路。对老化的基地,要及时切断电源,以免电线短路引起火灾、造成人身伤害等事件。
 
        (四)做好降雪清理及人工补光的准备。
 
 
 
二、做好保温工作 
 
        大风强降温及降雪常常会引起蔬菜遭遇冷害和冻害,尤其是在夜间温度过低的情况下更为显著,为此,做好保温工作尤为必要。
 
        1.合理调整揭盖棉被的时间。菜农可以采取较平常晚一小时打开棉被,下午早一小时遮盖棉被的方式,贮存更多的热量。
 
        2.加盖棉被或草苫及二层膜等。在棚室的前脚或者东西墙与棚膜连接处加盖棉被,或者在设施内部前沿、植株上部、走廊处搭一层棚膜,实现双层覆盖,采取“晚上遮盖、白天揭开”的方式,应对晚上低温,提高保温效果。
 
        3.采取人工加温。有条件的农户可以采取加温块、电暖气、生物质炉等加温设备进行夜间加温,确保设施内夜间最低温度在8℃以上。
 

三、做好光照管理 
 
        降雪等天气常伴随阴天,此时光照比较弱,植株光合速率降低,加上低温容易造成根系活力差,因此要保持植株见光,保证植株的光合作用。有条件的可以采取人工补光的方式增加光照。
 

四、做好水肥管理
 
        冬季严格控制浇水,在阴雪和大风降温天气尽量不要浇水,以免地温降低,增加空气湿度。如果极端天气时间较长,可采取浇小水的方式,在浇水的同时配合施用生物菌肥、腐植酸肥及氨基酸等有利于生根的肥料,加强植株营养,提高植株抗性,通过喷施叶面肥以及植物源生长调节剂等措施,给植株补充营养。同时要控制好棚室内湿度,中午湿度较高时,可以根据实际情况进行短暂通风;在防治病虫害时,减少使用水剂,尽量选用合适的烟雾剂量,在减少棚室湿度,防治病虫危害的同时,还可以提高棚室的温度。
 

五、做好田间管理
 
        对长势较弱或结果较多的蔬菜要及时进行采收,并适量疏花疏果,减少果实对植株养分的消耗,维持植株较强的长势;及时进行整枝打杈,摘除老病残叶,改善棚内通风和光照条件。同时,要及时清理积雪,如果是中小雪,可采取雪后清理的策略;如果是大雪,要做到边下边清理。为了操作简单,也可以在下雪前用旧棚膜加盖在草苫或棉被上,既方便扫雪还可防止雪融化后浸湿草苫或棉被。
 
 
六、设施蔬菜受冻后的补救措施
 
        在设施蔬菜受冻后,应注意做好日常管理,一是缓慢升温,叶面喷施速效性肥料,增加植株营养吸收;二是及时将受害的植株叶片及果实清理出棚室,避免增加病虫危害;三是适度进行人工喷水,增加空气湿度,稳定棚室内温度,降低植株受冻组织缺水的风险;四是情况严重的棚室,可以补栽一些生长期短的叶菜类的作物,减少经济损失。

 
 
 
作者:河北省蔬菜产业技术体系承德综合试验推广站 刘斯超 郑鹏婧 王玉宏
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