1) organism-nitrogen
生物体氮
1.
Influencing factors of organism-nitrogen in the field s oil were studied by the field experiment in moderate fertilizer red-soil of Yan gling.
在杨凌中等肥力红油土上进行大田试验 ,研究土壤生物体氮的变化及影响因子。
2.
By the field experiment in moderate fertilizer red-soil of Yangling, we took some soil samples periodical and laying, then determined the contents of Mineralize-nitrogen and Organism-nitrogen in the soil, the Variety of mineralize-nitrogen and the relation of mineralize-nitrogen and organism-nitrogen during the Crop growing were studied.
在陕西杨凌中等肥力红油土上安排大田试验,定期分层采取土样,测定土壤可矿化氮和生物体氮,研究作物生长期间田间土壤可矿化氮的变化及其与生物体氮的关系。
2) microbial biomass nitrogen
微生物体氮
1.
Effects of crop root and fertilizer on soil microbial biomass nitrogen in semiarid farmland ecological system;
半干旱农田生态系统作物根系和施肥对土壤微生物体氮的影响
2.
The experiment results showed that microbial biomass nitrogen of farmland was an important part of soil organic nitrogen, and the ratio of microbial biomass nitrogen to total nitrogen was 0.
对陕西关中不同地区农田土壤测定结果表明 ,微生物体氮是土壤有机氮库的重要组成部分 ,占土壤全氮的 0 。
3.
Fumigation waterlogged incubation method was used to study the microbial biomass nitrogen or carbon and the relationship between microbial biomass nitrogen and organic matter in soils collected from different ecological systems such as forest, steppe,meadow and arable field.
分别采取森林、草原、草甸和农田土壤，用熏蒸—淹水培养法测定土壤微生物体氮，并由微生物体碳、氮之比计算微生物体碳，研究不同生态系统土壤微生物体氮、碳的差异及其与土壤有机质间的关系。
3) soil microbial biomass nitrogen
土壤微生物体氮
1.
Field and incubation experiments were conducted with eumorthic anthrosols to study the dynamic change of soil microbial biomass nitrogen as well as the influence of soil moisture and temperature.
以杨陵土垫旱耕人为土(中等肥力红油土)为供试土壤进行田间试验和室内培养试验,研究土壤微生物体氮的动态变化及其土壤含水量和温度的关系。
2.
The incubation experiments conducted in laboratory and fields showed that the effects of mineralization processes of organic materials on soil microbial biomass nitrogen were closely related to the properties and constitution of organic materials and relied on the soil fertility and nitrogen application.
采用室内和田间培养试验 ,研究了有机物料矿化过程中土壤微生物体氮的变化。
3.
The factors affecting soil microbial biomass nitrogen and the relationship between soil microbial biomass nitrogen and mineralizable nitrogen are reviewed.
综述了影响土壤微生物体氮的因子,以及微生物体氮与可矿化氮之间的关系。
4) acceptor donor azobenzene derivatives
施受体型偶氮苯衍生物
1.
The experimental results for the nonresonant third order nonlinearity of the polymer films doped with acceptor donor azobenzene derivatives are reported.
研究了施受体型偶氮苯衍生物掺杂聚甲基丙烯酸甲酯（ＰＭＭＡ）薄膜的非共振三阶非线性，比较分子结构与材料的三阶非线性关系，得知越大的三阶非线性对应分子内越强的给受电子能力，在苯环上接上一个侧链基团可以增加分子的偶极矩，即增加了材料的三阶非线性。
5) biology of nitrogen fixing organisms
固氮有机体生物学
6) biological nitrogen removal
生物脱氮
1.
Highly effective biological nitrogen removal from high ammonia landfill leachate;
高氨氮垃圾渗滤液高效生物脱氮
2.
Development of biological nitrogen removal new process;
废水生物脱氮新工艺研究进展
3.
The influence of sludge recycle ratio on the step-feed A/O biological nitrogen removal process;
污泥回流比对分段进水A/O生物脱氮工艺的影响
补充资料：生物电子等排体
分子式：
CAS号：
性质：电子等排体是指外层电子数目相等的原子、离子、分子，以及具有相似立体和电子构型的基团，例如，—COO—、—CO—、—NH—、—CH2—等基团是电子等排体，—Cl、—Br、—CH3等也是电子等排体。生物电子等排体是指既符合电子等排体的定义，又具有相似的或相反生物学作用的化合物。运用生物电子等排体的概念不但可设计出具有与原药物相同药理作用的新药，而且还可生产该药物的拮抗药，这是因为化学结构高度近似的药物常能与同一受体或酶结合引起相似的效应（拟似药），或相反地起抑制的作用（拮抗药）。以乙酰胆碱结构类似物为例，其中氨甲胆碱、毒蕈碱都是拟胆碱药。实际上，电子等排体和生物电子等排体的概念在分子药理学上有广泛的应用，尤其是借变异的方法或分子改造来设计新的药物时，更经常涉及生物电子等排体。
CAS号：
性质：电子等排体是指外层电子数目相等的原子、离子、分子，以及具有相似立体和电子构型的基团，例如，—COO—、—CO—、—NH—、—CH2—等基团是电子等排体，—Cl、—Br、—CH3等也是电子等排体。生物电子等排体是指既符合电子等排体的定义，又具有相似的或相反生物学作用的化合物。运用生物电子等排体的概念不但可设计出具有与原药物相同药理作用的新药，而且还可生产该药物的拮抗药，这是因为化学结构高度近似的药物常能与同一受体或酶结合引起相似的效应（拟似药），或相反地起抑制的作用（拮抗药）。以乙酰胆碱结构类似物为例，其中氨甲胆碱、毒蕈碱都是拟胆碱药。实际上，电子等排体和生物电子等排体的概念在分子药理学上有广泛的应用，尤其是借变异的方法或分子改造来设计新的药物时，更经常涉及生物电子等排体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条