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玉米的高大植株和广大的叶面积显示它能消耗大量的肥料,因此它比小株禾谷类要容易出现缺乏症。玉米生长周期中需要大量的氮肥,易感氮不足。因此也被称为氮指示植物。缺氮是严重影响玉米产量和品质的重要因素之一,尽早对玉米植株缺氮做出诊断、及时采取补救措施,对指导玉米生产具有重要的意义。
Tall corn plants and large leaf areas show that it can consume large amounts of fertilizer, so it is more prone to deficiency than small-sized cereals. Corn needs a lot of nitrogen growth cycle, susceptible to nitrogen deficiency. It is also known as nitrogen-indicating plant. Nitrogen deficiency is one of the important factors that seriously affect the yield and quality of maize. Early diagnosis of nitrogen deficiency in maize plants and timely remedial measures are of great significance to guide the corn production.