缺氮植物表现出上述的许多症状。
Nitrogen-deficient plants exhibit many of the symptoms just described.
玉米是大多数大田作物中缺氮的最好的指示植物。
Corn is one of the best indicators for nitrogen deficiency among the field-crop plants.
许多植物中，轻度缺氮在其发育的某些阶段可能是适宜的。
In some plants, a mild nitrogen deficiency at certain stages of development may be desirable.
在19世纪晚期，科学家断定，缺氮将成为一个全球性的问题。
In the late 19th century scientists diagnosed a shortage of nitrogen as a planet-wide problem.
从历史上看，缺氮，不缺土地或不缺水，一直是农业最大的制约因素。
Historically, lack of nitrogen, not lack of land or water, has been its biggest constraint.
与其它相对，最前面的长得最矮小，这时候的它被认定是由于使用“错误肥料”而造成缺氮的表现。
The product at the front is exhibiting a lack of growth compared with all the others. This was identified at the time as being the lack of nitrogen because a ‘wrong’ source had been used.
事实上这两个系统都不该拥有这么多物种，它们的土壤中极度缺氮和缺磷，这是植物生长所需的营养盐。
In fact, both ecosystems owe their enormous diversity, in part. to the fact that their soils have critically low supplies of nitrogen and especially phosphorus, nutrients plants need in order to grow.
结果显示，有一个突变株不能分化异形胞；三个突变株可以形成异形胞，但在缺氮的条件下仍不能维持生长；
The result showed that one mutant was unable to differentiate heterocyst, three formed heterocysts but still could not maintain normal growth, four growed slowly with heterocyst differentiation.
以具有典型特征的不同氮效率小麦品种为材料，研究丰、缺氮条件下的籽粒产量、氮效率、氮素吸收特性和氮素吸收同化关键酶活性。
Yield, nitrogen efficiency, characterization of nitrogen uptake and key enzyme activity of nitrogen assimilation were studied in wheat varieties with different nitrogen efficiencies.
在陕西省关中土娄土区布置线辣椒缺素大田试验，研究线辣椒对氮、磷、钾肥的肥效反应。
Field experiment was carried out in Guanzhong area, Shaaxi province using Capsicum as indicator, to study Capsicum to fertilizer effect reaction of n, p, K fertilizer.
缺（低）硫处理器官酰脲与硝态氮增加。
S deficiency can increase the content of ureides and nitrate nitrogen of organs.
缺（低）硫处理器官酰脲与硝态氮增加。
S deficiency can increase the content of ureides and nitrate nitrogen of organs.
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