inorganic nitrogen

Adding inorganic nitrogen source such as NH4Cl 、( NH4) 2SO4 to culture medium, increase glucose concentration and Carbon Catabolite Repression and have no benefit to riboflavin production.

NH4Cl、（NH4）2SO4等无机氮源用作2.5%酵母粉的补充氮源，都能够促进发酵液中葡萄糖浓度增高，引起碳分解代谢阻遏效应，不利于核黄素合成。

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Effect of Inorganic Nitrogen Compounds and pH on the Growth of Duckweed

pH及无机氮化合物对小浮萍生长的影响

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Ammonium assimilation is a very important process to transform inorganic nitrogen into organic nitrogen for plants.

氨同化作用是植物将无机氮转化成有机氮的一个重要过程.

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Fluxes of the dissolved inorganic nitrogen and phosphorus at tidal limit in the Changjiang Estuary

长江河口潮区界溶解态无机氮磷的通量

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The main pollutants are inorganic nitrogen and reactive phosphate.

养殖区和盐业取水区基本已无水环境承载力，主要污染物是氮和磷。

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Nitrate ( NO3-) is the main source of inorganic nitrogen for plants in aerobic soil conditions.

硝态氮是旱地土壤上作物吸收和利用的主要无机氮素形态。

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This trait was stable as mutant cells grown at inorganic nitrogen medium without beef extract for 42 days ( subcultures for 6 passages) were still adapted to beef extract medium.

把突变细胞转入没有牛肉膏的无机氮培养基上，经6代42天培养，仍能生长，表明突变型的特性是比较稳定的。

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Effect of inorganic nitrogen on mineralization of organic carbon (~ ( 14) c+~ ( 12) c) in soil

无机氮对土壤中有机碳矿化影响的探讨

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There is the potential of uptake of soil, inorganic nitrogen by the roots of the semi-parasite.

半 寄生的根系有可能吸取土壤的无机氮.

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Distribution of inorganic nitrogen and its relationship to environmental factors in Beihai Bay

北海湾无机氮的分布及其与环境因子的关系

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Distribution characteristics of three kinds of inorganic nitrogen in the water column of Central South China$ ea

南海中部水体中三种无机氮的分布特征

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Based on the data of water quality at Datong Station, which is at tidal limit in the Changjiang Estuary, variations of concentrations and fluxes of the dissolved inorganic nitrogen and phosphorus were discussed.

利用长江河口潮区界大通站的水质资料探讨了溶解态无机氮、磷浓度和通量的变化。

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The result suggested that the inorganic dissolved nitrogen and phosphorus were the main nutrient factors that influenced the growth of the alga cultured in shrimp culture filtrate.

这表明，对虾养殖水中影响细基江蓠繁枝变种生长的主要营养盐形式是可溶性无机氮、磷。

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In this paper, according to the results of 22 water quality monitoring spots, the positive correlation of DO to COD, inorganic nitrogen and reactive phosphate has been found.

22个点位监测结果表明，大辽河口及辽东湾海域溶解氧与COD、无机氮、活性磷酸盐之间存在负相关关系；

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The elements such as carbon 、 hydrogen 、 oxygen 、 nitrogen and sulfur in coal were converted into various organic or inorganic compounds in the process of destructive distillation.

煤中碳、氢、氧、氮、硫等元素，在干馏过程中转变成各种氧、氮、硫的有机和无机化合物。

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The main pollutants are inorganic nitrogen, oil and activated phosphorous.

主要污染物为无机氮、石油类、活性磷。

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Rice plants grown in paddy fields preferentially use ammonium as a source of inorganic nitrogen.

水稻长在大田中主要以铵盐为无机氮源。

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Selec-tion of nutrient mutant cells was carried out by planting the culture in a medium with 1% beef extract without any inorganic nitrogen.

在1%牛肉膏培养基（没有无机氮的）上筛选突变细胞。

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This research aimed at removal of inorganic nitrogen ( the target pollutant) from water using photocatalysis and metal ion doped nano-TiO_2, that were prepared by a sol-gel method.

本研究以无机氮作为目标污染物，利用溶胶-凝胶法制备的掺杂金属离子的纳米TiO2和耦合光催化氧化还原反应来脱除水中无机氮作为研究的主要内容。

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Based on the sea water quality assessment in the Dalian Bay, an estimation matrix is constructed with inorganic nitrogen, inorganic phosphor, oil and COD. Weights of the four factors are got by calculating eigenvectors of corresponding characteristic roots that are maximum.

在评价大连湾海域水质状况的基础上，以无机氮、无机磷、石油类及四项因子构造判断矩COD阵，通过计算矩阵的最大特征根所对应的特征向量，得出四项因子的权重。

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Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content.

秸秆还田增加了土壤全氮和无机氮含量.

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Temporal and spatial variation characteristics of inorganic nitrogen and active phosphorus in Zhujiang Estuary

珠江口海域无机氮和活性磷酸盐含量的时空变化特征

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Accumulation of soil inorganic nitrogen in mono-harvesting farmlands of northeast China in late autumn

东北一季作农田秋末土壤中无机氮的累积

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