Study on ammonification rate and slow release performance of urea

And No. 2 ammonified straw were 1.131 7% and 1.371 8% respectively, which were 161.9% and 217.55% higher than that in straw respectively.

号料含氮量分别为1.1317%，1.3718%，比麦草提高161.91%，217.55%。

Study on the loss of total nitrogen in ammonified straw

氨化麦秸全氮损失研究

Most probable number ( MPN) method was employed to determine distribution of the nitrogen-cycle bacteria in a pond water, including ammonifying bacteria, denitrifying bacteria, nitrosobacteria and nitrobacteria.

采用最大可能数法分析了不同季节池塘水体中氨化细菌、亚硝化细菌、硝化细菌和反硝化细菌的种群数量。

The continuous accumulation of REEs exhibited alternative effects of stimulation, inhibition and re-stimulation on soil ammonifying bacteria, nitrifying bacteria, nitrogen fixation bacteria and bacteria decomposing cellulose.

结果表明，外源低剂量稀土的持续积累会对土壤氨化细菌、硝化细菌、纤维素分解菌和自生固氮菌产生刺激、抑制、再刺激的交替作用。

The effects of Cd on the cellulose decomposing bacteria, the ammonifying bacteria and the nitrobacteria varied with the culture-time and concentrations of Cd.

Cd对纤维素分解菌、氨化细菌、硝化细菌的作用随培养时间、Cd浓度的不同分别表现出不影响、刺激和抑制。

The sensitivity of these four consortia to the inhibition of REEs was in an order: bacteria decomposing cellulose ammonifying bacteria nitrifying bacteria nitrogen fixation bacteria.

4种土壤微生物生理类群对混合稀土抑制敏感性依大小排序为：纤维素分解菌氨化细菌硝化细菌自生固氮菌。

Under the stress of high accumulation of Ce, the population structures of actinomycetes, fungi, cellulolytic fungi and ammonifying microbes were changed in different degrees.

在高积累Ce的胁迫下放线菌、真菌、分解纤维素真菌和氨化微生物的种群结构发生了不同程度的改变。

Drought stress changed the correlation of NH4+-N and NO3& N with protease, urease activity, ammonifying bacteria and nitrifying bacteria.

干旱胁迫改变了玉米根际NH4+-N和NO3&N与蛋白酶、脲酶、氨化细菌和硝化细菌的相关性。

Abundance of heterotrophic bacteria, ammonifying bacteria and nitrite bacteria, and heterotrophic bacterial population dynamics in the coastal waters of Zhejiang were investigated.

文章报道了浙江海岛沿岸水域中异养细菌、氨化细菌和反硝化细菌的数量分布及异养细菌的种群组成。

The aerobic and anaerobic bacteria is in same system, making the reaction of oxidizing, ammonifying, nitrifying and denitrifying also in same device.

使氧化、氨化、亚硝化、硝化、反硝化等反应在同一装置中进行。

Effects of different conservation tillage on amount and distribution of soil ammonifying bacteria, nitrobacteria and nitrogen-fixing bacteria

不同保护性耕作措施对三种土壤微生物氮素类群数量及其分布的影响

The content of protein was increased markedly when ammonium acetate was added to the medium.

添加的乙酸铵几乎全部被螺旋藻利用，并且蛋白质含量明显提高。

The concentration of ammonium acetate could affect the activity.

而反复冻融和乙酸铵浓度均可以影响抑菌活性。

The CdS thin films were uniform and smooth, and there were no white flecks in them at all when cadmium acetate and ammonium acetate were used to deposite CdS thin films.

当镉盐和铵盐分别采用乙酸镉和乙酸铵时，生成的薄膜均匀、平整，薄膜中根本就不存在所谓的白斑。

Polyaspartic acid ( PASP) was synthesized by self-catalysis process with microwave using maleic anhydride and ammonium acetate as raw materials.

以马来酸酐和乙酸铵为原料，在微波条件下用自催化法合成了聚天冬氨酸（PASP）。

Endurance of Temperature, Ammonium Hydroxide and Ethanol by Several Strains of Bacillus

几种芽孢杆菌对温度、氨水和乙醇耐受性的研究

Study on Low-cost Synthesis of Beta Zeolite without Ammonium Hydroxide

Beta沸石的无氨廉价化合成研究

Using tetramethyl ammonium hydroxide ( TMAH) as dispersant for SiC aqueous suspension, the effects of dispersant concentration and pH value on the rheological behavior of SiC aqueous suspension were studied.

使用四甲基氢氧化铵（TMAH）作为分散剂，研究了分散剂用量对SiC浆料流变性能的影响，并分析了其原因。

Preparation of tetramethyl ammonium hydroxide ( I) application of TMAH solution in MEMS

四甲基氢氧化铵（TMAH）的制备（Ⅰ）四甲基氢氧化铵在MEMS中的应用

Early Carboniferous corals in the AMMONOID facies from barkol, Xinjiang

新疆巴里坤早石炭世菊石相的珊瑚