氨态氮

结果表明：所有添加剂（除尿素）处理均能明显改善苜蓿青贮的发酵品质，降低青贮料的pH值、氨态氮含量。

Results showed , all additives except for urea significantly improved the fermentation quality of alfalfa and decreased pH and ammoniacal nitrogen content .

除尿素外的所有添加剂处理均可抑制青贮二次发酵过程中氨态氮的产生，抑制蛋白降解及丁酸的产生，但对pH值的影响效果不一。

All additives except for urea can inhibit the production of ammoniacal nitrogen , butyric acid and the decomposition of protein during silage secondary fermentation , but the effects on pH were differing .

y为瘤胃氨态氮浓度（mg/100ml），x为尿素溶解率（%）。

Y : NH_3-N concentration ( mg / 100ml ), x : urea solubility ( % ) .

复合光合细菌对鱼塘水氨态氮H2S的去除效应

Removal of NH_3-N and H_2S in Fishpond Water by Composite Photosynthetic Bacteria

添加甲酸显著降低了青贮料pH值、乳酸和氨态氮含量（P0.05）；

Adding of formic acid greatly ( P0.05 ) reduced the silage pH value , lactic acid and ammonia nitrogen content .

土壤原生动物与氮（主要是指氨态氮、碱解氮和硝态氮）有显著的相关性，说明土壤原生动物在土壤N的转化中起重要作用。

Result showed that there was significantly correlation between soil protozoa and soil nitrogen . Therefore , soil protozoan is important among the alteration of soil nitrogen .

添加磷显著提高了氨态氮、瘤胃液蛋白质、乙酸浓度及乙酸/丙酸（P＜0.05），并随磷添加水平的升高而升高。

The pH , Concentration of NHs-N , rumen liquid protein , Ace and Ace / Prop were increased significantly with the level of the added phosphorus ( P < 0.05 ) .

本文研究了绵羊饲料中添加糖蜜对绵羊瘤胃内pH和氨态氮（NH3-N）浓度的影响。

Four Xinjiang sheep were selected to study the effect of beet molasses added to diets on the rumen pH and NH_3-N concentration .

结果表明：混合培养液的pH值与氨态氮浓度在8h内急剧下降，而后至24h呈缓慢下降；

The pH and ammonia-N concentration rapidly decreased in first 8 h incubation , then the speed of decrease became slow in later incubation .

叶片中氨态氮同化酶GS活性变化较大且没有规律，而AAT活性在高磷供应时较高。

GS activity changed acutely in different P-supply concentration , but AAT activity in higher P-concentration increased .

通过使用GIS技术，论述了吉林省西部平原地区地下水特征组分如氟、铁及氨态氮、硬度和矿化度等的分布规律，并做出了水质评价图。

Concentration distribution regularity of fluorine , iron , hardness , NH - 3-N and mineralization in the groundwater have been discussed and evaluated by GIS in the west plain region of Jilin province .

连续施P处理根层水解总氮、氨态氮、氨基酸氮和氨基糖氮含量分别比对照增加413.55mg/kg、58.39mg/kg、169.83mg/kg和107.01mg/kg；

Long term applying P separately increases contents of hydrolysable N , aminoacid N and amino sugar N in topsoil by 415.55 mg / kg , 58.39 mg / kg , 169.83 mg / kg and 107.01 mg / kg ;

发酵成分的pH、乳酸、乙酸、丙酸、丁酸和氨态氮含量的校正模型决定系数R2分别为0.98,0.83,0.85,0.3,0.90和0.92。

The R ~ 2 of pH , lactic acid , acetic acid , propionic acid , butyric acid and ammonia were 0.98,0.83,0.85,0.36, 0.90 and 0.92 respectively .

沼液不同施用浓度对果园土壤的有机质、速效磷、速效钾的含量有显著影响，对氨态氮、pH值的影响不显著。

Different concentrations of biogas slurry had remarkable influence on the contents of organic matter , effective phosphorus , effective kalium of orchard soil , whereas the effects on the ammonium-nitrogen and pH were slight .

随着轮虫量的增加，溶氧和pH值下降到相对较低水平，氨态氮、活性磷等营养盐量在轮虫大量发生后迅速上升。

With the increase in the rotifer quantity , the dissolved oxygen content and pH value reduced to a relatively low level while the nutrient levels , including ammonia and activated phosphorus levels increased rapidly .

结果表明，水生植物能有效抑制底泥中TN、TP、硝态氮和氨态氮的释放；

The results showed that hydrophytes could effectively control the release of total nitrogen , total phosphorus , nitrate - nitrogen and ammonia - nitrogen .

结果表明：①阴离子饲粮对瘤胃发酵pH值、氨态氮浓度、总挥发性脂肪酸浓度、主要挥发酸的摩尔比例均没有显著影响（P>0.2）。

The results showed that ① ruminal fermentation parameters including rumen pH , concentrations of ammonia nitrogen and total VFA , and individual VFA molar percentages , except isovaleric , were unaffected ( P > 0.2 );

结果表明，循环水养殖系统内虾池水层悬浮物数量、COD值、氨态氮和硝酸态氮含量比对照组对虾单养池明显降低（P<0·01）。

The results indicated that COD , the contents of suspension , ammoniated nitrogen and nitrated nitrogen were much lower than those of monoculture ponds ( P < 0.01 ) .

根转化糖、K、Na、α&氨态氮含量和杂质指数随施氮水平增加而提高，而蔗糖含量、可回收糖量则随之下降。

With increase of levels of nitrogen application , invert sugar , content of K , Na , a-N and impurity index raised in roots , while sucrose content and recoverable sugar content decreased .

本文主要讨论了日粮精粗比对奶牛瘤胃内环境的影响，包括对瘤胃细菌菌群数量、瘤胃pH值、瘤胃内容物稀释率和外流速度、氨态氮浓度以及挥发性脂肪酸的影响。

The effects of forage to concentrate ratio on rumen bacteria , pH value , rumen fluid dilution rate ( FDR ), ammonia ( NH3-N ) and volatile fatty acids ( VFA ) were reviewed in the article .

实验表明，合成的CNN中氨态氮含量22.78%，总氮含量35.08%。

The experiment indicates that the ammonia nitrogen content in the synthesized CNN is 22.78 % , and its total nitrogen content comes to 35.08 % .

胶清废水系天然橡胶初加工时的一种工业废水，具有较高的生化需氧量（BOD），其中约含有1%蛋白质，0.05～0.3%氨态氮等。

Skim serum is an industrial effluent from rubber factories . It is of higher BOD and contains about 1 % protein and 0.05-0.3 % ammoniacal nitrogen , etc.

5-HMF和还原糖含量与褐变度整体成正相关；pH值、可溶性固形物和氨态氮含量与褐变度整体成负相关。

The 5-HMF and reducing sugar content were positive correlation with browning degree ; while the value of pH , TSS and animo nitrogen content showed passive correlation with browning degree .

着色细菌在CSTR反应器中进行驯化和富集培养，培养基为含H2S、CO2和氨态氮的煤气（其中H2S含量为2.0g/m3）。

Chromatium was cultured and trained in CSTR reactors . The medium was coke oven gas ( COG ) in which there were NH 3 , CO 2 and H 2S .

凤眼莲对甲鱼污水中的氨态氮、亚硝氮和硝氮、COD、磷等的净化率分别为71.5%、88.1%、68.5%和90.7%。

The removal rates of ammonium-nitrogen , nitrite nitrogen , COD , phosphorus in wastewater by the plant water hyacinths was discovered to be 71.5 % , 88.1 % , 68.5 % and 90.7 % , respectively .

对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca，Mg，K等养分和生长发育的影响与常规氮肥相似。

It is very similar to traditional N fertilizers used often to physical and chemical quality of soil , ammonium , nitrate and to the nutrients absorption of crop such as Ca , Mg and K etc as well as crop growing .

结果表明，羔羊瘤胃液pH、氨态氮、丙酸、乙+丙+丁酸浓度随日龄而不断升高，在100日龄时趋于稳定，并且受日粮营养水平的影响。

The results showed that the pH , NH_3-N , propionic acid , and acetic + propionic + butyric acids concentrations in rumen fluid were affected by dietary nutrient level , increased with the age , and were stable after 100 days ' age .

本文采用高效液相色谱法对40个纯酿造酱油中的羟脯氨酸进行定量分析，按正态分布法计算其单侧99%正常值范围上限相对羟脯氨酸含量为2.1mg／g氨态氮。

Using high performance liquid chromatography to make quantitative analysis on 40 Hyp pure soy sauces , calculated according to the normal distribution , 99 % of its normal range of unilateral upper limit was equal to 2.1 mg / g of ammonia nitrogen .

研究了金针菇发酵过程中菌丝产量、还原糖、总糖、pH、氨态氮与发酵时间的动态关系，并在选定条件下确定了最佳发酵时间。

In this paper , the dynamic relationships between fermentation time and mycelium yield , reducing sugar content , total sugar content , pH value and amino nitrogen of Flammulina velutipes fermentation were investigated by submerged culture method , and the optimal culture time was determined .

选取高产和中产奶牛牛舍各一栋，测定粪便含水量、粪尿中总氮（TN）氨态氮（TN）浓度以及粪中NH3和H2S气体的散发量。

Selected a high-yield and a middle-yield cowshed , determination the feces water content , the total nitrogen ( TN ), ammonia nitrogen ( AN ) concentration and NH3 , H2S emission content in feces .