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今日霜降│霜降已至 秋意正濃

2024-10-23 13:42:47 來源：農機網整理發布 閱讀量：28307 評論

　　【農機網 熱點關注】 霜降，是秋季的最后一個節氣，是秋季到冬季的過渡。霜降不是表示“降霜”，而是表示氣溫驟降、晝夜溫差大，就全國平均氣溫而言，“霜降”是一年之中晝夜溫差最大的時節。
 
　　霜降時節，北方大部分地區已在秋收掃尾，華北地區的大白菜即將收獲，要加強后期管理。南方則是“三秋”大忙季節，單季雜交稻、晚稻才在收割，種早茬麥，栽早茬油菜；摘棉花，拔除棉秸，耕翻整地。
 
　　霜降時期的農事管理是非常關鍵的，下面為大家介紹一下霜降節氣農事活動指南。
 


圖片來源：千圖網

 

　　水稻
 
　　應加強再生稻后期管理，一方面抓好以稻飛虱、稻曲病、紋枯病為主的病蟲害防治工作，實施藥肥混噴，保護莖葉防早衰，加強對病蟲害的監測。另外一方面再生稻各節位腋芽生長發育先后不一，抽穗、成熟也參差不齊，尤其是頭季機收再生稻更為突出，故應堅持黃熟收割，不宜過早，以免影響產量和稻米品質。
 
　　蔬菜
 
　　霜降時期種秋菜，周期短，見效快，比種其他作物劃算。為了奪取晚秋蔬菜豐收，應充分利用晚秋季節豐富的光、熱與土地資源，大力發展晚秋蔬菜生產，推廣晚秋蔬菜無公害生產技術，確保晚秋蔬菜安全供給。
 
　　要清理田間秸稈，深翻土壤，減少病蟲害發生。芹菜、青菜、蘿卜等耐寒性蔬菜要加強澆水、防蟲等管理工作。大棚番茄、黃瓜、茄子、辣椒等喜溫性作物要加強保溫防寒，并適時澆水和及時采收。注意大棚內溫濕度控制，預防灰霉病、霜霉病、疫病等病害。
 
　　果樹
 
　　此時的柑橘處于秋梢老熟期、果實膨大后期，除加強梢果管理外，促花工作也要及時開展，以保證明年柑橘的產量與品質。對上批梢未老熟的可施高氮肥料，促梢生長，盡量推遲老熟，避免凍害。
 
　　中晚熟獼猴桃品種金艷、金魁和華特等適時采收。要做好獼猴桃潰瘍病和褐斑病的防治，葡萄和已采摘的獼猴桃施基肥，視土壤情況噴一次水。
 
　　茶園
 
　　新茶園開始種植，開深溝施足有機肥，按新茶園種植標準種植茶苗，施足定根水，提高茶苗成活率。
 
　　注：本文由農機網(www.goodqmj.com)整理發布，資料來源：百度百科及網絡。

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