硝化细菌

Picking out single colony from ammonifying culture medium solid medium and seeding them in nitrosation culture medium to culture and purify to obtain heterotrophic nitrifying bacteria.

从氨化培养基固体培养基中挑取单菌落，接种于亚硝化培养基中培养、纯化，获得异养硝化细菌。

Drought stress weakened the rhizosphere effect of ammonifying bacteria.Under drought stress,rhizospheric ammonifying bacterium amount of Baidan31 was very significantly different at seedling and jointing,and significantly different at tasseling-anthesis from that of control.Rhizospheric nitrifying bacteria tended to increase under drought stress.

干旱胁迫减弱了玉米氨化细菌的根际效应，与对照根际氨化细菌数量相比，白单31在苗期和拔节期根际氨化细菌数量受干旱胁迫的影响达极显著水平，在抽雄～开花期达显著水平；根际硝化细菌数量在干旱胁迫下有所增加。

Straw returned to field played a positive role in increasing soil insect communities with the largest contribution, primarily the amounts of individuals and dominant species of macro and meso/micro soil animal, especially Neanuridae and Isotomidae animals individual amounts increased by nearly 10 times.(3) Soil nutrien had a positive correlation with soil bacteria, azotobacter, ammonifying bacteria, cellulose decomposing bacteria and denitrifying bacteria. Straw returned to field could stimulate effective microorganisms growth and population quantity in the soil. The increase of microbe community amount is 15%~44% more than that of CK.(4) Soil nutrien had a positive correlation with soil phosphatase, urease and sucrase activities, and a negative correlation with catalase.

研究发现：(1)长期配施秸秆能提高土壤速效氮、磷、钾含量，平均分别提高15%、48%和22%；(2)配施秸秆对土壤昆虫群落呈正向作用且贡献最大，主要增加了大型、中小型农田土壤动物的个体总数和优势类群数量，尤其是疣跳科和等节跳科动物个体数量增加近10倍；(3)土壤养分与土壤细菌、固氮菌、氨化细菌、纤维分解菌和反硝化细菌呈正相关，秸秆还田激发土壤有益微生物的生长和类群数量，使土壤微生物类群数量比对照增加15%~44%；(4)土壤养分与土壤磷酸酶、脲酶、蔗糖酶活性呈正相关，与过氧化氢酶呈负相关，秸秆还田增强土壤蔗糖酶、磷酸酶和脲酶活性，特别是脲酶和蔗糖酶活性平均提高26.5%。

The communities of Denitrifying bacteria, and some key enzymes of denitrification were also introduced.

反硝化是在反硝化细菌的作用下，以硝酸盐作为最终电子受体而进行的无氧呼吸过程。

The effect of one kind of heavy metal element on the denitrifying population and its activity in various paddy soil was also different.

同一种重金属元素对不同水稻田土的反硝化细菌种群数量及其活性的影响也有差异。

Synergistic treatment of iron sulfide laden and stabilized slops simultaneously by use of surfactant and denitrifying bacteria was studied.

对表面活性剂和反硝化细菌协同处理含硫化亚铁颗粒污油的可行性进行了研究。

Anaerobic sludge containing denitrifying bacteria was enclosed in many pieces of cloth and made into many little balls.

培养大量厌氧污泥污泥中含以氨为电子供体的反硝化细菌。

Synergistic treatment of iron sulfide laden and stabilized slop s simultaneously by use of surfactant and denitrifying bacteria was studied.

对表面活性剂和反硝化细菌协同处理含硫化亚铁颗粒污油的可行性进行了研究。

The impact of denitrifying bacteria, soil diameter and soil-column height upon denitrification was investigated, and the enrichment of 15 in the effluent was presented.

动态试验考查了反硝化细菌、土壤粒径和土柱高度对反硝化作用的影响，并应用15N说明了出水中硝酸盐氮的富集作用。

The oxidation of ammonium compounds into nitrates by soil bacteria.

通过硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。