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近几天许多农民陆续来电反映,说他们家的玉米长出来以后,下部几个叶片发红,形成“红苗”现象,玉米苗株高低,根系生长受阻,严重的甚至死亡,农民迫切想知道是什么原因造成玉米苗变红,现在又该怎么管理才能保证玉米苗恢复正常生长?1玉米苗发红原因1.1缺磷引起红苗。一方面当土壤中有效磷的含量低时,磷供应不足,引起玉米苗发红;另一方面是当玉米苗长出时,遇到低温或者浇水,对根系
In recent days, many peasants have called one after another to reflect that when their corn grows out, the lower leaves become red and form a phenomenon of “red seedlings”. The growth of corn plants is blocked, serious or even death, and peasants are urgently needed Want to know what causes reddening of corn seedlings, and now how should we manage to ensure the normal growth of corn seedlings? 1 maize seedlings red cause 1.1 deficiency caused by red phosphorus. On the one hand, when the content of available phosphorus in the soil is low, the supply of phosphorus is insufficient, which causes reddening of the corn seedlings. On the other hand, when the corn seedlings grow up, they encounter low temperature or watering,