氮

The results from the experiments on crops of water convolvulus and flowering Chinese cabbage indicated that soil NO3-N concentration showed non-linear correlation with higher N fertilizer application rates, whereas they presented linear correlation with lower to middle N fertilization rates.

结果表明，在较大施氮量范围内，施氮量与土壤渗漏水硝态氮浓度之间呈非线性关系，但在中低施氮量时则表现为线性关系，可以应用&双速率转折点&概念评价菜园土壤硝态氮流失潜力。

Correlation between NUE and characters of inbred lines were analyzed. The resulted showed that in choosing inbred lines, the following traits should be included, higher chlorophyll content and big area of ear leaf at heading period, higher N content of grain and harvest index at low N, and the big biomass at heading period and maturity at high N.

通过玉米自交系各性状与氮效率的关系的分析表明，低氮胁迫下，应选择抽丝期穗位叶叶绿素含量高、穗位叶叶面积大、籽粒含氮量高和氮收获指数大的自交系，高氮处理条件下，应选择抽丝期生物量大和成熟期生物量大的自交系。

According to correlation analysis of yield and properties, the following traits should be included, higher chlorophyll content and big area of ear leaf at heading period, higher N content of grain, NUE and N harvest index in choosing cultivars at low N, and the big biomass at heading period and maturity should be included at high N.

据性状与产量相关分析表明，低氮条件下应选择抽丝期穗位叶叶绿素含量高、抽丝期穗位叶叶面积大、籽粒氮含量高、氮效率高和氮收获指数高的品种；高氮条件下应选择抽丝期生物量大和成熟期生物量大的品种。

The excess nitrogen atoms in WNx films desorbs at temperatures below 766 ?aC. The excess nitrogen in WNx films can cause the effective work function lowering. Weak Fermi-level pinning effect is observed on HfO2 film. In this case, WNx/HfO2 gate stack can be applied to p-type fully-depletion SOI devices but WNx is not suitable to be meal gate of bulk p-type MOSFTEs.

氮化钨中过多的氮元素在温度低於766 oC便会析出，且过多的氮会导致氮化钨有效功函数下降，在氧化铪上会有轻微的费米栓效应，这种情形下，氮化钨可应用於p-型全空乏绝缘层上矽金氧半场效电晶体元件，但不适合当块材 p-型金氧半场效电晶体闸极。

The results showed that a combined application of manure and chemical NPK and long-term fallowing increased the contents of soil organic matter, total N, and mineralized N, as well as the N mineralization rate significantly, compared with the control.

结果表明：氮磷钾化肥和有机肥配施及长期撂荒处理显著提高了土壤有机质和全氮含量以及土壤氮素矿化量和矿化率；氮磷钾化肥处理虽然提高了土壤无机氮含量，但对土壤有机质、全氮、土壤氮素矿化量和矿化率的影响相对较小。

After two rice-wheat rotations, 11%–13% of applied labeled N remained in 0-60 cm soil (mostly in the 0-20 cm soil); leaching of labeled urea applied in rice season was little (only 0.6%–1.1% of the applied N accumulated in 20-60 cm soil), and the leaching of fertilizer N occurred in wheat season and the beginning flooding period of the next rice season; 47%–54% of applied fertilizer N was lost and ammonia emission and nitrification-denitrification were the main pathways.

水稻季施用的肥料氮向耕层以下移动很少，20—60 cm土层中累积肥料氮仅占施氮量的0.6%～1.1%，主要发生在小麦季及水稻泡田时期，肥料氮损失占施氮量的47～54%，氨挥发和硝化反硝化气态损失是主要途径。

Among the four upper leaves on the stem, the physiological and biochemical indices and leaf color of the 4〓 leaf from top responded quickly to change of the plant N level or the N gap between source and sink, suggesting that its color may be a good indicator of plant N status.

当植株氮水平提高或氮素供需差缩小，叶片的氮代谢能力明显增强，碳代谢能力明显减弱；叶片内蛋白氮、非蛋白氮、叶绿素和生长促进型激素的含量提高，可溶性糖和淀粉含量降低；叶片向外输出的氮和糖减少，叶片的衰老过程被延缓。

The results showed that removal effect of periphyton on nitrogen was significant.Cumulative removal ratio of nitrogen was up to 60%,the nitrogen concentration decreased from 5 to 2 mg /L or so within two weeks.Cumulative removal ratio of nitrogen was closely related with nitrogen concentration,working time and biomass of periphyton.

结果表明，附着生物对水体中的氮有显著的去除效果，半个月内，附着生物对水体中总氮的累积去除率可达60%，在有附着生物的水体中总氮浓度从5 mg/L左右下降到2 mg/L左右；附着生物对水柱中氮的累积去除率和水柱中氮的浓度、附着生物的生物量以及附着生物作用时间密切相关。

Compared with the traditional methods, this could be an ideal approach to prepare nitrides at relative low temperature.

采用Mg〓N〓-NH〓Cl为混合氮源在500℃下氮化〓合成了氮化钼纳米晶，采用Mg〓N〓为氮源氮化〓合成了β-W〓N纳米晶。

We are the spirit of "excellent quality, integrity of reciprocity" principle, we know the quality and technology on Product modeling and the importance of constant innovation and focus on high-quality requirements, the introduction of high-quality China-made high-quality steel and steel products "in Guangzhou Industrial Research Institute of Electrical and Mechanical Heat Treatment Technology Research Center "co-operation to provide customers with high-quality steel heat treatment and testing services, including high-quality vacuum hardening, nitriding, carbonitriding, boron nitrogen permeation, soft nitriding, annealing, quenching and tempering,, the high-frequency surface hardening, surface hardening VHF, chemical surface heat treatment, vapor deposition, such as titanium nitride.

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。