nitrogen deficiency的例句大全

Corn is one of the best indicators for nitrogen deficiency among the field-crop plants.

玉米是大多数大田作物中缺氮的最好的指示植物.

Nitrogen deficiency or excessiveness affected apical kernel development, which resulted in higher kernel abortion and lower grain yield.

而施氮不足或过量都影响顶部籽粒发育，败育率增加，产量下降。

the correlation between the activity of nitrogen reducing enzyme and nitrogen efficiency of maize genotypes was significant positive under the condition of nitrogen deficiency.

不同玉米基因型间硝酸还原酶的活性与氮营养效率呈现显著正相关关系。

From the investigations, lack of nitrogen and phosphorus, oxygen deficiency in aeration basin of SBR, high concentration of sulfide in the wastewater is found.

调查分析得知该厂印染废水存在氮、磷缺乏现象，SBR曝气池存在缺氧现象，废水中硫化物含量较高。

A New Method for Nitrogen Determination in Citrus Nutrient Deficiency Diagnosis

柑桔营养诊断中氮素测定的新方法

Liquid nitrogen or helium can expand by factors of 700 ( LN2) or 780 ( LHe) to normal temperature, and the uncontrolled releasing into an enclosed space can cause on oxygen deficiency hazard ( ODH).

低温液氦或液氮气化到室温环境后体积将膨胀700（LN2）的780倍（LHe），不加控制低温气体泄漏到房间中会引起氧气缺乏事故。

study on nutritional deficiency symptom and nitrogen nutrition of new guinea impatience

新几内亚凤仙缺素症状和N营养研究

There exist certain problems in a small oxygen and nitrogen production plant, such as great cold loss, great waste of products and that nitrogen purity cannot reflect the operating conditions on time, etc. due to the deficiency in the process design.

某小型制氧制氮设备由于流程设计上存在的不足，存在冷损大、产品浪费大和氮纯度不及时反映工况等问题；