1.
Changes of Soil Organic Carbon and Total Nitrogen of Croplands in China and the Net Carbon Effiency of Rice and Wheat Crops Determined by Nitrogen;
中国农田土壤碳氮变化及氮素对稻麦作物固碳效益的影响
2.
To convert(nitrogen) into stable, biologically assimilable compounds.
固氮把（氮）转变成稳定的、能被生物吸收的化合物
3.
Transformation of Nitrogen and Simultaneous Nitrification and Denitrification in Highsludge~ Process
Highsludge~工艺中氮的沿程变化与同步脱氮研究
4.
The Changes of Carbon and Nitrogen Metabolism in The Process of the Differentiation of Flower Bud of Radish
萝卜花芽分化过程中碳-氮代谢的变化
5.
Dynamic changes of nitric oxide and nitric oxide synthase activity in lung tissue of Balb/c mice
Balb/c小鼠肺组织一氧化氮及一氧化氮合酶的动态变化
6.
Methylation Alternations in Riceinduced by the Nitrogen Starvation
低氮水平下诱导的水稻DNA甲基化变异
7.
The Example Analysis on Variation of Oxygen and Nitrogen Content in Steelmaking Process
炼钢工艺流程氧氮含量变化实例分析
8.
Seasonal variation of C/N ratio in‘Yu Her Pu' litchi trees(Litchi Chinensis Sonn.)
‘玉荷包'荔枝树体碳氮比之季节性变化
9.
Research on DO,ORP and pH Profiles During Nitrogen Removal Process in the Integrated Intermittent-aeration Membrane Biological Reactor
IMBR脱氮过程中DO、ORP和pH变化研究
10.
To reduce(nitrates or nitrites)to nitrogen - containing gases, as by bacterial action on soil.
使变成含氮气体（将硝酸盐或氮化物）变成含氮气体，例如通过对土壤的细菌作用
11.
The concentrations of ammonia and nitrate in water-sediment interface varied seasonally.
水－沉积物界面氨氮和硝态氮含量呈现明显季节性变化。
12.
Effect of Nitrogen Fertilizer Rate on Change of Soil Nitrogen and on Yield and Quality in Wheat and Its Physiological and Ecological Basis;
施氮量对土壤氮素变化和小麦产量与品质影响的生理生态基础
13.
Study on the Effect of N Fertilizer with Split Application on Variation Characteristics of N in Surface and Leakage Water of the Paddv-field;
稻田分次施氮对田面水和渗漏水中氮素变化特征的影响
14.
Study on Time and Spatial Change of Nitrate Nitrogen of Cotton and Apparent Budget of Soil Nitrogen;
棉田土壤硝态氮实时变化规律及氮素平衡初步研究
15.
Study on the Effect of Nitrogen Fertilizer with Split Application on Variation of Nitrogen in the Surface and Leakage Water of the Paddy Field;
分次施氮对稻田水层及渗漏水氮素影响动态变化研究
16.
Effects of Water and Nitriogen Coupling on Changes of Soil Water and Nitrogen in Tobacco Field and Yield and Quality of Flue-cured Tobacco;
水氮耦合对烟田土壤水氮动态变化及烟叶产量和品质的影响
17.
Impact of Fertilizer-N Application in Different Seasons on the Rice Yield Growth Physiology and Variation of Nitrogen Status in Soils;
不同季别施氮对水稻产量生长生理及土壤氮素变化的影响
18.
Studies on the Dynamic Change of Nitrogen of Soybean Plant and the Effect of Additional Nitrogenous Fertilizer on It;
大豆植株氮素动态变化及追施氮肥对其影响的研究