Algae microorganisms in the water overpopulate because of the surplus nitrogen.

水的藻类微生物由于氮的富余而过度繁殖。

Yield and N uptake response by non-nodulated soybean to increased P availability is marginal.

不结瘤大豆对有加在产量和氮吸收上的反应也不大。

"There are several kinds of gas in the air, with nitrogen amounting to the most part."

"空气有好几种气体,氮所占的比重最大。"

With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.

用氯化钙作沉淀剂，消除酸根离子的干扰，用甲醛法测定复合肥的总氮。

A method for determination of nitrogen in N-MnFe by titrimetry with amidosulfonic acid after alkaline distillating separation has been studied in this paper.

本究了强碱蒸馏分离-氨磺酸滴定法测定氮化锰铁氮的分析方法。

It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢度和光谱特性,发现磺酰胺基和在它的氮原子上的取代基会影响该类染料的性能。

The review discusses many ways of preparing hydrazine through hydrolysis of Azine, and the effects of catalyst to yield of hydrazine by hydrolyzing azine.

摘要论了酮连氮水解制备肼的各种方法及催化剂对酮连氮水解和肼收率的影响。

The most common method of biological nitrogen removal is by combining the nitrification of the autotrophic nitrobacter and nitrosomonas with the denitrification of heterotrophic denitrifying bacteria.

生物除氮最常利用的是将自营性硝酸菌、亚硝酸菌之硝化作用与异营性脱硝菌之脱硝作用结合。

In this paper,the relation of heterotrophic bacteria to nitrogen and phosphorus in marine environment is studied by adding nitrogen and phosphorus to the seawater in mesocosm.

利用海洋围隔生态系统实验装置,向海水施加不同浓度的氮和,究海洋异养细菌与海水环境氮、的关系。

An average summer output in excess of 900 kg . liveweight per ha. could not have been obtained if there had been a complete reliance on clover nitrogen.

要是完全依靠三叶草的氮，要在夏季获得每公顷草场900公斤以上的活体重，是不可能的。

The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye.

该染料甲川链上的碳原子与氨基的氮原子相连，而该氮原子又与染料的甲川链形成烯胺。