Nitrogen forms most of the Earth's air.
地球上空气的大部分成分是氮气。
There were different responses in cultivars with high yield and low protein content to nitrogen forms.
高产低蛋白品种对氮肥形态反应不一。
The results showed that different nitrogen forms significantly affected the dry matter accumulation percentage in different plant organs.
结果表明，不同氮素形态配比影响了植株各器官干重占全株干重的百分比。
Field experiment was conducted for studying the effect of nitrogen forms on the yield of Chinese cabbage and the accumulation of nitrate.
通过田间试验研究了不同形态氮肥对大白菜产量及硝酸盐累积的影响。
There are obvious difference in the contents of endogenous hormone and polyamine content under osmotic stress and different nitrogen forms.
渗透胁迫和不同氮肥形态处理烤烟叶片内源激素和多胺含量有明显的差异。
The nitrogen contents and nitrogen forms were studied in albic soil with longterm crop rotation and soybean, maize, wheat continuous cropping.
对轮作及大豆、玉米、小麦长期连作白浆土中氮含量及有机态氮组分变化进行研究。
The leaching process and nitrogen forms, and the effects of application rate and the depth of soils on nitrogen loss by leaching were also discussed in this paper.
还探讨了氮肥淋溶过程中的氮形态变化，以及施氮量和土层深度对氮肥淋浴损失的影响。
The biological effect of protectively applied nitrogen on nodulation N-fixing activity, nitrogen forms in Xyloid liquid, and amount of assimilated nitrogen in soybean were studied.
从大豆结瘤、固氮活性、木质部溶质氮形态以及植株同化氮量论证了保护性施氮的生物学效应。
Pot experiment was carried out to study the effect of different nutrient levels and nitrogen forms on the growth, nutrient uptake, partitioning, and potassium flow within flue-cured tobacco plants.
为材料，在室内砂培条件下研究了不同养分浓度及氮形态对烟株的生长、养分的吸收和分配，以及钾循环等的影响。
Nitrogen, which, makes up about 78% of the Earth's atmosphere, is an inert gas but it has more reactive forms.
虽然组成地球大气78%的氮是一种惰性气体，但它却有多种化学式。
The lights prevent production of a particular type of nitrogen-oxide molecule known as a nitrate radical, which forms from reactions of nitrogen dioxide with ozone.
这些照明灯阻止了一种特殊类型的二氧化氮水分子——它被认为是一种硝分子团——的生成，而二氧化氮水分子则是二氧化氮和臭氧的反应物。
Nitrogen in the atmosphere is harmless in its inert state, but the report says reactive forms of nitrogen, largely produced by human activity, can be a menace to the natural world.
大气中的惰性氮是无害的，但报告说主要由人类活动产生的活性氮可能危害自然界。
Microbial cycling of such critical chemical elements as carbon and nitrogen helps keep the world inhabitable for all life forms.
微生物使重要的化学元素例如碳和氮进行循环，从而帮助保持这个世界能让所有的生物类型生存居住。
SummaryResults available showed that soil age did no significant effect on the distribution of the forms of soil organic nitrogen.
现有的材料说明，土壤年龄对土壤的氮素形态分布没有明显的影响。
Nitrogen enters into the structure and forms amino acids.
氮素进入植物体而构成氨基酸。
Nitrogen has a heavy impact on the properties of the single crystal silicon, and its properties, forms and mechanisms on reactions with related defects have been intensively investigated.
氮杂质对硅单晶的性质有重要的影响，氮在硅中的性质、存在形态以及和相关缺陷作用机理一直为人们所研究。
The distributions and functions of various forms of nitrogen in the biogeochemical cycling in the southern Yellow Sea surface sediments were investigated.
本文报道了南黄海表层沉积物中不同形态氮的区域分布特征及其在生物地球化学循环中的作用。
This thesis researched the forms of nitrogen in the surface and gravity sediments (station Z) of Jiao Zhou Bay and core sediments of the Yellow sea (station E1 and E2).
本论文进行了胶州湾表层和重力管(Z站)沉积物以及位于胶州湾外黄海内的柱状沉积物(e1、E2站)中氮的形态研究。
The experimental result also shows that the nitrogen element on the surface of contact black surface may be mainly in forms of amino group and nitro group.
此外，实验分析了接触法炭黑表面氮元素的组成，结果表明主要是以氨基和硝基的形式存在。
Effects of interaction between nitrogen and zinc on forms of zinc in yellow- brown soil collected from a pasture in southern China were studied under pot- culture conditions.
选用南方牧场土壤，在盆栽条件下，研究了氮锌交互作用对土壤中锌形态和生物有效性的影响。
Therefore, selection of the forms of nitrogen applied may be considered as an effective measure of controlling uptake of heavy metals by crops.
因此，氮肥形态的选择供应可作为控制作物对重金属吸收的一种措施。
The result shows that the content of soil organic matter, total nitrogen and different forms nitrogen decreased firstly, then increased by time pasted.
结果表明，该区域土壤有机质、全氮及各形态氮素含量呈现先降后升的趋势。
Because of the effects of hydrodynamics and sediment grain size, the contents of different forms of nitrogen in surface sediments at stations in the Yellow Sea Trough were higher.
受水动力及沉积物粒度的影响，不同形态氮在黄海槽内各站位沉积物中的含量较高。
Water vapor in the air combines with nitrogen and forms nitric acid.
水汽在空气中用氮和表格氮的酸联合。
The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .
该染料甲川链上的碳原子与氨基的氮原子相连，而该氮原子又与染料的甲川链形成烯胺。
The results showed that the amount of absorbed nitrogen in different forms varied with nitrogen and potassium levels.
结果表明，水稻对铵态氮和硝态氮的吸收与养分供应状况有很大关系。
As an important aspect of hydrological processes, water-level change can directly or indirectly affect the quality and quantity of nitrogen in various forms.
水位变化作为水文机制的重要方面，直接或间接的影响人工湿地环境各种形态氮质和量的变化。
Existing forms of nitrogen impurity and distributional characteristics ofisolated nitrogen in Hunan placer diamonds have been studied by means of EPR, violet-visible and IR spectroscopy.
利用顺磁共振、紫外-可见吸收光谱和红外吸收光谱研究了湖南砂矿金刚石中杂质氮的存在形式和孤氮的分布特点。
Under both types of losses, the dissolved nitrogen was the main loss forms, of which the average occupies more than 60% of the total loss consistence.
两种流失方式下，水溶态氮是主要流失形态，平均占各自总浓度的60%以上。
Under both types of losses, the dissolved nitrogen was the main loss forms, of which the average occupies more than 60% of the total loss consistence.
两种流失方式下，水溶态氮是主要流失形态，平均占各自总浓度的60%以上。
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