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【實用技術】馬鈴薯收獲貯藏注意事項

2024-09-20 09:29:28 來源:內蒙古自治區(qū)農牧廳 閱讀量:10470 評論

導讀:內蒙古馬鈴薯已進入淀粉積累期(終花—葉枯期),該時期應停止追施氮肥并逐步減少灌水量。水肥供應要均勻,收獲前10-15天停止灌溉。

   一、水肥管理
 
  我區(qū)馬鈴薯已進入淀粉積累期(終花—葉枯期),該時期應停止追施氮肥并逐步減少灌水量。水肥供應要均勻,收獲前10-15天停止灌溉。
 
  二、殺秧與收獲
 
  機械收獲需在收獲前一周進行機械殺秧,促進薯皮老化。收獲時避免機械損傷、風吹雨淋、暴曬和受凍,并剔除病、爛薯,以利貯藏運輸。
 
  三、儲藏管理
 
  (一)貯窖消毒:新薯入窖前必須對貯窖進行清理,并噴灑化學藥劑消毒滅菌。
 
  (二)做好預儲:分級前和長期貯藏前將薯塊在10-15℃左右的溫度下預貯2-3周,預貯場所要寬敞和通風條件好。剛收獲的馬鈴薯堆高不宜超過2米,商品薯要放在暗處,避免見光變綠。在薯皮老化和薯塊傷口愈合前應避免分級和運輸。預貯后清除爛薯、病薯。
 
  (三)控制堆高:地下或半地下窖堆放時,不耐藏的、易發(fā)芽的品種堆高為0.5-1米;耐貯藏、休眠期中等的品種堆高1.5-2米;耐貯藏、休眠期長的品種堆高2-3米,最高不超過3米,但貯藏量不能超過全庫容積的2/3,最好為1/2左右。
 
  (四)調節(jié)溫度:地下或半地下常溫庫貯藏時,初期加強空氣流通,降低薯堆溫度,防止薯堆過熱;貯藏中期防止外面冷空氣進入庫內使薯塊受凍;貯藏后期,即開春后,應防止外界熱空氣進入庫內而增高庫內溫度,使塊莖發(fā)芽。
 
  (五)控制濕度:貯藏初期庫內濕度較大,貯藏中后期因庫內溫度下降,使庫內濕度過大而發(fā)生爛窖和早期發(fā)芽。在利用自然溫度、自然通風或強制通風的貯藏庫內,要通過庫門、氣眼換氣的辦法來調節(jié)和控制濕度。
 
  (六)通風換氣:貯藏過程中,應及時排出二氧化碳,以免引起黑心、降低發(fā)芽率。
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