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晚霜冻害威胁很大,是我区农业生产上的一个重要灾害,常常给农业生产带来严重损失。苗株外部叶片和茎秆受冻后,一看就清楚,但幼穗受冻后很难从外部看出,必须进行检查。1、辨别幼穗形态法:幼穗冻死的苗株,生长停止,叶片不再增加,最上部的心叶大多枯黄。但是这些现象要在受冻后经过较长时间才看得出来。为了及早发现,及早采取措施,
Late frost damage is a big threat and is an important disaster in agricultural production in our region, often causing serious losses to agricultural production. After the outer leaves and stalks of the seedlings are frozen, it is easy to see from the outside after seeing the young ears frozen and must be inspected. 1, identify the panicle morphology method: Young frost death of seedlings, growth stops, leaves no longer increase, most of the most of the heart leaves are yellowish. However, these phenomena can not be seen after a long period of time after being frozen. In order to find out early and take early measures,