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农业生产如何应对寒潮天气【对话仙桃】

  • 2026-09-01 16:55:28
农业生产如何应对寒潮天气【对话仙桃】

相信大家都感受到了,1月19日到20日,我们仙桃遭遇了一次明显的寒潮和低温雨雪冰冻天气,气温骤降、雨雪交织,这样的极端天气,对咱们全市的农业生产会不会带来影响?农户们该如何做好防范和补救,减少损失呢?

对话

柳德明 市农业技术推广中心主任、高级农艺师

主持人:柳主任,首先想请您给大家介绍一下,这次寒潮雨雪冰冻天气,整体来看,对我们仙桃的农业生产造成了哪些具体影响?主要涉及哪些作物和领域呢?

柳德明:好的,主持人。这次寒潮天气来得急、降温快,最低气温降至零下2-3℃,伴随雨雪和冰冻,但对比2018年和2024年,而本次寒潮持续时间较短、无明显冻雨、田间积雪深度仅4厘米左右,致灾程度要轻得多。总体上可以说是利大于弊,是一场瑞雪。利于小麦、油菜练苗、控制旺长和补充田间墒情,有效压减了虫源基数。但是对设施农业还是产生了一定影响,少数老旧普通大棚,因积雪出现了棚体变形或垮塌、薄膜受损的情况,导致棚内种植的辣椒、番茄等喜温蔬菜,生长放缓、落花落果和植株冻伤。虽然这次寒潮对目前的农业生产没有造成重大损失,但后续的防范和补救工作仍然不能松懈。

主持人:非常详细的介绍,也让我们了解到了这次寒潮对农业生产的具体影响,相信很多农户朋友现在最关心的就是,针对已经出现的冻害,还有接下来可能持续的低温天气,该采取哪些具体的防范和补救措施呢?柳主任,您给大家支支招吧,尤其是针对咱们仙桃主要的作物类型。

柳德明:好的,主持人,这也是我们农业技术推广中心近期的重点工作,针对不同作物,我们整理了一套实用的防范和补救技术措施,农户朋友们可以结合自己的种植实际,灵活运用。

首先是小麦和油菜。一是要及时清沟排水,雨雪过后田间容易积水,积水会加剧冻害,还可能导致根系腐烂,所以要尽快清理田间三沟,排出积水;二是要适时追肥,对于出现冻害的,可喷施芸苔素内酯等调节剂,搭配叶面肥,帮助作物恢复生长、增强抗寒能力,对播种偏迟长势滞后的,还可以适当追施速效肥,促进弱苗转壮。

其次是露地蔬菜。一是要及时采收,已经成熟的西兰花、青菜、萝卜等蔬菜,要尽快采收上市,避免持续低温导致蔬菜冻伤、变质,减少损失;二是要加强田间管理,雨雪过后及时清除田间的积雪和残枝败叶,松土增温,促进蔬菜根系生长,同时避免浇水,防止低温结冰加重冻害。

最后是设施农业。一是要加固棚体、绷紧棚膜,迅速清除棚顶积雪;二是要科学调控棚内温湿度,天气放晴后,白天午间,适时通风透光,降湿补温,下午4时后及时闭棚保温,并进行多层覆盖,有条件的农户,可采用电热加温等方式,提高棚内夜间温度,对采用煤碳加温的要特别注意防范一氧化碳中毒;三是要合理肥水管理,当前不可灌水和施肥,待棚内温度稳定10度以上后,再适量喷施叶面肥,促进作物恢复生长。

来源:对话仙桃节目

监制/李冬梅   编审/刘琼秀 张萍 

编辑/张钰梅

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  12. SELECT * FROM `article` WHERE `id` > 463780 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000444s ]
  13. SELECT * FROM `article` WHERE `id` < 463780 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000779s ]
  14. SELECT * FROM `article` WHERE `id` < 463780 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000654s ]
  15. SELECT * FROM `article` WHERE `id` < 463780 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001589s ]
0.073474s