查询词典 nitrogen-fixing bacteria

The results showed that methamidophos inhibited the growth and activity of bacteria, Actinomyces and Azotobacter at different degree, but stimulated the growth of fungi; the results also showed that soil respiration and ammonification was stimulated, however, soil nitrogen fixation, nitrification and Fe－reduction was inhibited.

结果表明，甲胺磷对细菌、放线菌和固氮菌群的生长具有不同程度的抑制作用，而对真菌却有一定的刺激效应；土壤的呼吸作用、氨化作用增强，自生固氮能力、硝化作用以及铁离子价数转换作用减弱。

The first step of the process includes the aerobic oxidation of reduced nitrogen compounds to nitrite and nitrate by specialized, autotrophic bacteria.

第一过程的步包含生存于氧气中的氧化的减少的氮是经过专门，靠无机物质生存的细菌混合特别是向亚硝酸根和硝酸盐铵。

Through further research and experiments, we discussed the mechanism of nitrogen and phosphorus removal by these denitrification bacteria.

通过进一步的研究试验，探索了目标菌种脱氮除磷的机制。

Similar as traditional activated sludge system, when the water temperature was below 4℃, sludge bacteria went into dominancy phase and metabolism stopped. All the removal of nitrogen and COD was due to membrane blockage.

与传统活性污泥系统类似，在水温低于4℃的情况下，MBR反应器内的微生物进入休眠状态，无法对水中污染物质进行分解代谢，对于氨氮和COD的去除均由膜组件的物理截留造成。

The mount of germ and fungus quantity in soil are remarkably increased for the continuous cropping about 5 years, puts the trichobacteria quantity always change tendency to reduce;The edaphon total quantity, the bacterium quantity change reduces generally above the continuous cropping 5 years and below 5 years (including 5 years) the change are not obvious;In the nitrogen physiology group by ammoniates the bacterium primarily and the quantity changes are not very big;The nitrifying bacteria quantity is lower than the comparison (non- continuous cropping), the quantity of denitrifying bacteria is opposite;The alkalinity phosphatase, the urease, invertin activeness have a closed relations with the continuous cropping when it will increase less than 5 years or decrease in more than 5 years. The relation between catalase activeness and the continuous cropping is not very big. The reduction of the invertin activeness, the alkalinity phosphatase, urease activeness have slightly elevates, catalase activeness have no the regular changes.

表现为连作条件下土壤真菌数量显著增大，放线菌数量总的变化趋势降低；土壤微生物总量、细菌数量变化在连作5年以上普遍降低，5年以下(包括5年)则变化差异不明显；氮素生理群中以氨化细菌为主，但数量变化不大；硝化细菌数量低于对照组，反硝化细菌数量则相反：多酚氧化酶、转化酶活性在5年之前逐渐上升，5年之后逐渐下降，，脲酶活性随着连作年限增加持续上升，过氧化氢酶活性、碱性磷酸酶活性变化无规律。

This research studied the optimal strain combination through single strain and mixed strains fermentation from Sweet Sorghum juice. The suitable proportion and quantity of inoculation, the optimum nitrogen source and its ratio in the medium were established through mixed fermentation. The optimum pH values, fermentation time and temperature were obtained by L9 (3)3 orthogonal experiment. The optimum mixture of biotechnology fulvic acid, Azotobacter chooroccum, Phospho bacteria and Silicate bacteria were studied.

本文以甜高粱秸秆汁为原料，通过单菌及混合菌种发酵实验确定了发酵的最佳菌种组合；利用微生物混合发酵确定了发酵菌种的接种比例、接种量、最佳氮源及其添加量；用L_9(3)~3正交设计的方法，确定了发酵的最佳pH值、发酵时间和发酵温度；研究了生化黄腐酸液体肥料和圆褐固氮菌、钾细菌、磷细菌的复配工艺，并在作物上进行了田间试验。

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 results showed that low temperature, high content of salt and acidic condition inhibited ammonifiers growth, and alkalescent condition showed little effect on ammonifiers. Ammonifying bacteria in Suzhou Creek could not use inorganic nitrogen and carbamide as nitrogen source. Additional carbon source have little effect on ammonifiers growth....

结果表明，低温、高盐度和酸性条件会抑制氨化菌的生长；中、碱性条件下，氨化菌仍能维持正常生长；苏州河的氨化菌无法以无机氮和尿素作为生长所需的氮源；在氮源充足条件下添加额外碳源，对氨化菌的生长无抑制作用；苏州河的环境条件有利于氨化菌的生长。

The values of D10 and D for the total bacteria in boiled dumplings under chill state were 2.04 kGy and 4.00 kGy, the value of D10 and D for E. coli were 1.25 kGy and 2.00 kGy. TBAS were increased significantly and excessed the trade standard by 5 kGy γ-irradiation. However, the TBAS would be decreased with addition of antioxidants. Lipid peroxide,volatile basic nitrogen,"a" value of color and "b" value of color showed a tendency of increase, and moisture content and Aw showed a tendency of decrease, which did not achieve a significant level(p.05) by 1 to 5 kGy doses of γ-irradiation. Total acidity, amino acid nitrogen and free fatty acid showed no significant differences between treated and control samples. Sensory evaluation values were decreased and were all well within the acceptable level by 1 to 5 kGy doses of γ- irradiation.

辐照能有效降低鲜熟水饺细菌总数和大肠菌群数量，鲜熟水饺中细菌总数和大肠菌群的 D10值分别为 2.04 kGy 和 1.25kGy，D 值分别为 4.00 kGy 和 2.00kGy；0～5kGy 辐照鲜熟水饺 TBA 值随辐照剂量增加而增加，5kGy 辐照已使之超过国家行业标准限量要求；辐照鲜熟水饺过氧化值、挥发性盐基氮、色差 a 值、色差 b值存在随辐照剂量增加而增加的趋势、水分含量存在下降趋势，但变化未达到显著水平(p.05)；对酸度、氨基酸态氮、水分活度、游离脂肪酸含量等其他理化指标没有显著影响；较高剂量辐照使产品感官质量降低，却都在可接受范围内； 4kGy 辐照使维生素 B1下降 31.94%，对维生素 E、蛋白、脂肪、氨基酸、不饱和脂肪酸含量无显著影响。

After 5 months of ensiling,inoculating silage inoculant bacteria led to lower pH(P.05),lower ammonia nitrogen in total nitrogen(P.05) and content of butyric acid(P.01)compared to the untreated silages.

结果表明，青贮5个月后，添加青贮菌剂可以显著降低pH值(P＜0.05)、NH3/TN值(P＜0.05)，减少丁酸含量(P＜0.01)，有利于保存青贮物的营养成分，提高青贮品质。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失