氮的

The small size particles produced during ferrovanadium sizing operation are formed into nitrided briquette so as to obtain nitrided ferrovanadium, The effect of ferroalloy size, pressure, nitriding temperature and nitniding time was studied on the nitrogen content of the product.

对高钒铁合金精整过程中产生的细颗粒物料进行压块渗氮，得到氮化钒铁产品，研究了合金粒度、压块压强、渗氮温度、渗氮时间对产品含氮量的影响。

The author concluded that the content of general nitrogen and amino nitrogen of normal beers were higher than others, and the super drought beer were lowest; The spirit degree was match with the malt liquor.

普通型啤酒的总氮及氨态氮含量都最高，超干型啤酒总氮及氨态氮含量最低。酒精度与原麦汁浓度成正比。

The contents of organic matter, total nitrogen, phosphorus, iron, manganese, copper, zinc can be increased, and the contents of hydrolizable nitrogen and their forms , Fe-P, Al-P, Ca〓-P, all organic P forms, exchangeable and organic iron, manganese, copper, zinc are increased obviously in long-term application organic manure soil. Not only the contents of soil readily oxidizable carbon, humic acid, fuluic acid, and HA/FA value are increased and Kos value decreased but also the available nitrogen, phosphorus, iron, manganese, copper, zinc are kept more high level in the organic manure soils. Long-term mulching straw has similar role with organic manure for soil nutrient except for decreasing total phosphorus, available P, N and Ca〓-P, but its fertilizer efficiency is not better than organic manure.

有机肥还具有提高土壤易氧化碳和松结态腐殖质含量，降低kos值，提高土壤HA、FA含量及其比值的作用，使土壤中有效态氮、磷、铁、锰、铜和锌含量处于中上等水平；长期秸秆还田除了不增加土壤全磷、有效氮和磷等外，对其他养分的作用效果与有机肥相似，但其肥效不如有机肥；长期氮磷化肥单施，土壤全氮和磷增加，有机质、铁、锰、铜和锌含量下降，易氧化碳、松结态腐殖质、HA和FA含量、kos和HA/FA值下降；长期不施肥土壤有机质、全氮等养分处于消耗状态。

Effects of nitrogen levels on nitrate accumulation, nitrate and potassium uptake of spinach were studied.

研究了不同供氮水平对菠菜硝态氮硝态氮累积与氮、钾吸收的影响。

There was a significant correlation between soil easily mineralizable nitrogen and microbial biomass nitrogen measured before planting with the net nitrogen mineralization and plant nitrogen uptake.

通过盆栽试验研究了土壤易矿化有机态氮和土壤微生物态氮与土壤净矿化氮及植物吸氮量之间的关系。

When initial NO3--N was leached, the correlation coefficients between soil initial NO3--N and mineral N extracted by CaCl2 before aerobic incubation with raygrass nitrogen uptake were decreased to 0.613 and 0.607, respectively, and both reached 5% significantly level. However, the correlation coefficients between mineralizable N extracted by aerobic incubation, soil initial mineral N and mineralizable N extracted by aerobic incubation, N0 and soil initial mineral N and N0 with raygrass nitrogen uptake were raised obviously, and all reached 5% and 1% significant level.

以不包括土壤起始NO3--N盆栽试验植物吸氮量为参比，通气培养前CaCl2淋洗起始NO3--N和起始矿质氮与五期黑麦草地上部氮素累积量间的相关性尽管有所降低，但相关性仍达5%显著水平，相关系数分别为0.613和0.607；而通气培养30周矿化氮素、土壤起始矿质氮+通气培养30周矿化氮素、N0及N0+起始矿质氮与五期黑麦草地上部吸氮量的相关系数却明显提高，相关系数分别为0.718，0.782，0.688 和0.640，均达5%或1%显著水平。

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠，叠氮化钡，五氮化三磷，异硫氰酸苯酯，1-苯基-5-巯基四氮唑，4-二甲氨基吡啶，2-巯基-5-甲基-1，3，4噻二唑，N-羟基邻苯二甲酰亚胺，无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

The results indicated as pH values in the range from 4.50 to 7.50, the volume and dry weight of root increased as pH values increased, as well as AAAR,TAAR. The relationship of nicotine and total nitrogen accumulation with pH values was parabola,the functions were Y=-61.429X2+391.17X-162.8 (F=l 8.45), Y=-24.3X2+154.88X+52.7 (F=14.40**) respectively. When pH value got rise to 7.50, the accumulation of nicotine and total nitrogen attained the highest .

主要研究结果如下： 1 不同pH值(4.50、5.50、6.50、7.50、8.50)对烤烟根系发育、根系吸收面积以及对烟叶烟碱、总氮、蛋白质和多酚物质积累影响的研究结果表明pH值在4.50～7.50范围内，根系体积和干重都随着pH值上升而增加，AAAR、TAAR也随着升高，烟叶中烟碱、总氮累积量随着pH值上升而增加，烟碱和总氮累积量与pH之间呈抛物线关系，关系式分别为Y=-61.429X~2+391.17X-162.8，F=18.45~；Y=-24.3X~2+154.88X+52.7，F=14.40~，pH值对烟碱和总氮累积量的影响存在极显著差异，当pH值升至7.50时，烟碱和总氮累积量达到最高值。

Carbonitriding Carbonitriding, sometimes known as dry cyaniding or nicarbing, is a case-hardening process in which the steel is held at a temperature above the critical range in a gaseous atmosphere from which it absorbs carbon and nitrogen.

碳氮共渗碳氮共渗，有时也称为干法氰化或渗碳氮化，是一种表面硬化工艺。通过把钢放在高于临界温度的气体中，让它吸收碳和氮。

Earbonitriding Earbonitriding, sometimes known as dry cyaniding or nicarbing, is a case-hardening process in which the steel is held at a temperature above the critical range in a gaseous atmosphere from which it absorbs carbon and nitrogen.

碳氮共渗碳氮共渗，有时也称为干法氰化或渗碳氮化，是一种表面硬化工艺。通过把钢放在高于临界温度的气体中，让它吸收碳和氮。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。