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小麥出苗後馬上澆水好嗎
小麥出苗後馬上澆水好嗎
更新时间:2024-11-10 01:50:28

  1、冬小麥,出苗後需晚澆冬水。若澆灌過早,因氣溫相對較高,可加速麥苗生長,易形成小麥旺長。極易遭受冬季凍害、和倒春寒危害,輕者枯葉死蘖,重者凍死幼苗。

  2、麥田冬灌時間一般掌握在小雪前後,日平均氣溫8℃-7℃開始,5℃-4℃結束。田間标準以“夜凍晝消”為宜。既要保證小麥安全越冬,又要預防小麥旺長。

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