1)  nitrate
硝态氮浓度
1.
Effect of added carbon source and nitrate concentration on the denitrifying phosphorus removal by SBR process was systematicaly studied, at the same time the variation of oxidation reductiun potential(ORP) was investigated.
利用间歇试验研究了反硝化除磷过程中有机碳源和硝态氮浓度对厌氧放磷和缺氧吸磷的影响 ,同时对反硝化除磷过程ORP的变化规律及以其作为控制参数的可行性作了探讨 。
2)  nitrate nitrogen
硝态氮
1.
Regulation effect of nitrate nitrogen on chromium toxicity to Brassica campestris L.ssp.chinensis(L.);
硝态氮对小白菜铬污染毒性的调控作用
2.
Determination of nitrate nitrogen in fertilizer by high efficiency liquid Chromatographic method;
高效液相色谱法测定肥料中硝态氮含量
3.
Horizontal movement rule of nitrate nitrogen in Xianghai marsh wetland soil;
向海沼泽湿地土壤中硝态氮的水平运移规律
3)  Nitrate-nitrogen
硝态氮
1.
A stochastic-convective transfer function model simulating resident nitrate-nitrogen concentration distribution in soil profile;
土壤剖面硝态氮浓度分布的随机—对流传递函数模拟
2.
Losses of nitrate-nitrogen from a wheat-Corn rotation in north China;
华北地区小麦—玉米种植制度下硝态氮淋失量研究
3.
Simulation and prediction of nitrate-nitrogen leaching from soils under the growth period of winter wheat using transfer function model;
冬小麦生长条件下土壤硝态氮淋洗的传递函数模拟和预报
4)  nitrate
硝态氮
1.
Study on the situation of the nitrate-N's vertical breaking-through of the soil in the typical rice fields and simulation by Hydrus-1D model;
典型水稻土中硝态氮垂直穿透状况及模拟
2.
Removal of nitrate from wastewater by immobilization cells;
固定化细胞去除废水中硝态氮的试验研究
3.
Study on the nitrate vertical transport rule in farmland soil of Tai Lake area;
太湖地区农田土壤中硝态氮垂直运移的规律
5)  nitrite-nitrogen
亚硝态氮
1.
It is focused on the phenomena of nitrite-nitrogen accumulation and ammonia inhibition to nitrite-nitrogen,encountered in the operation of sewage purification system with soil aquifer treatment process,and the conc.
着重探讨了土壤渗滤污水净化系统运行中的亚硝态氮积累和氨氮对亚硝态氮的抑制等问题,并提出亚硝态氮浓度可以作为指示系统正常运行的有效指标。
6)  NO3-N
硝态氮(NO3-N)
参考词条
补充资料:硝态氮
分子式:
CAS号:

性质:以硝酸根离子NO3—形态存在于土壤、植物和肥料中的氮素。常用符号NO3——N表示。硝酸钠、硝酸钙、硝酸铵(除含硝态氮外,还含有铵态氮,因其性质更接近硝态氮肥,故归入之)都属于硝态氮肥。淹水的水稻田中硝态氮含量很少,而在温带旱作土壤中硝态氮常有积累。它是植物直接吸收利用的速效性氮素。土壤中硝态氮含量随季节和植物的不同生育期而变。土壤硝态氮不被土壤吸附,雨季易淋失,水田中还可因反硝化作用而损失。植物中的硝态氮是植物体内主要的无机态氮,在一定范围内植物中的硝态氮含量可反映当时土壤供氮状况和植物体内氮素营养水平。但水稻体内所含硝态氮极少,不能作为氮素营养水平和诊断指标。植物组织液中硝态氮的含量(以N计)约为100~1000mg/kg。硝态氮是水质监测的重要项目之一。有些国家已将含氮订入了湖沼水质的标准。

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