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
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 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。
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。
This paper studied the purification effect of P, N by planting water hyacinth, Canna, Cyperus and Vetiver in a floating culture system and the change of ammonifying bacteria flock and total alkaline phosphate activity in pig farm wastewater. 研究利用漂浮栽培系统栽培水葫芦、美人蕉、风车草、香根草对养猪场废水的净化效果及对水体中氨化细菌和碱性磷酸酶的影响。
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 number of soil ammonifying bacteria actinomyces and mold, bio-chemistry activity of urease can sensitively reflect early pollution of carbofuran in Hunan red soil. So they can be as biological index of carbofuran pollution. 土壤氨化细菌、放线菌、霉菌的数量,脲酶的生化活性强度能较灵敏地反映湖南红壤土中呋喃丹的污染状况,可以作为呋喃丹污染的生物学指标。
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。
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。
The conclusions of this study as follows: 1. Treated with different TCC concentrations of 0,10,20,40 and 60mg/ kg, the amount of nitrifying bacteria, denitrifying bacteria and ammonifying bacteria have taken place significant changes, reflecting a different inhibition-activation effect. 本研究主要获得以下结论:1.不同浓度的TCC(0,10,20,40,60mg/kg)处理后,土壤中硝化细菌、反硝化细菌和氨化细菌的数量发生了明显的变化,反应出了不同的抑制-激活效应。