固氮作用

Terrestrial microorganisms play a vital role in soil nitrogen cycling. They participate in important ecological processes such as nitrogen fixation, ammonification, nitrification and denitrification.

土壤微生物在土壤氮循环中发挥着不可替代的作用，参与了包括固氮作用、氨化作用、硝化作用和反硝化作用等重要生态过程。

Nitrogen fixation caused by azotobacter was one of the important origins of nitrogen resources in alpine grassland.

固氮菌的固氮作用是高寒草地土壤氮素的重要来源之一。

Although they do not heterocyst, but also found that some species are nitrogen fixation, such as the red light ball algae.

虽然它们没有异形胞，但也发现有的种类有固氮作用，如淡红色球藻类。

To illustrate how information on an input's value might affect its use, use of nitrogen, phosphorus, potassium, and a nitrogen-providing inoculum on the production of soybean are examined.

为了说明投入值的信息怎样影响其应用，这里对氮、磷、钾和具有固氮作用的接种剂在大豆生产中的施用做了分析。

LEGUMINOUS PLANTS TO BE HOSTS FOR NITROGEN-FIXING BACTERIA.

于充当那些具备固氮作用的细菌的寄主。

The %FNDA of Lespedeza bicolor was not significantly correlated with net N mineralization.

胡枝子固氮作用与净氮矿化量不存在显著相关关系。

Soil net N nitrification would increase with the increase of the %FNDA of Lespedeza bicolor. Lespedeza bicolor could fix a large amount of N〓, but was also likely to increase the N leaching loss.

胡枝子固氮作用越强，土壤有机氮的净硝化量就越大，胡枝子在从大气中获取大量〓的同时，很可能会增加氮素的淋溶损失量。

The prospect of employing nitrogen fixation in agriculture is promising.

在农业中应用固氮作用的前景良好。

All the results indicated that Brazilian sugarcane also had a nitrogen-fixing capacity in Guangxi, Mo was propitious to regulate nitrogenase activity of nitrogen-fixing bacteria in sugarcane under nitrogenous conditions, and promoted nitrogen fixing; while under non nitrogenous conditions, it was unpropitious to regulate the nitrogen activity and inhibited nitrogen fixation of nitrogen-fixing bacteria.

上述结果说明：巴西甘蔗在本地也具有一定的固氮能力；在不缺氮条件下，钼处理较利于调节甘蔗体内固氮菌的固氮酶活性，促进其固氮；而在缺氮条件下，钼处理不利于调节甘蔗体内固氮菌的固氮酶活性，抑制其固氮作用。

Two relatively recent independent developments stand behind (stand behind:后援,做后盾) the current major research effort on nitrogen fixation, the process by which bacteria symbiotically render leguminous plants independent of nitrogen fertilizer.

两项相对近期且互为独立的事态发展激励了研究者目前对固氮作用进行重大的研究努力，而所谓固氮作用，是指细菌通过这一过程，以共生关系的手段，致使豆科植物独立于氮肥。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。