1.
Effects of Environmental Factors on the Nitrogen-fixing Quantity of Nitrogen-fixing Bacteria in Agropyron Cristatu;
环境因子对冰草根际固氮菌固氮量的影响
2.
Analysis of Correlation between Growth Quantity and N-Fixation Efficiency of 29 N-fixing Trees
29种固氮树种生长量与固氮效率相关性研究
3.
Effects of N Fertilization at Different Stages on Nitrogenase Activity and Yield of Soybean;
不同时期施用氮肥对大豆根瘤固氮酶活性及产量的影响
4.
Effects of low molecular organic acids on nitrogen accumulation,nodulation,and nitrogen fixation of soybean(Glycine max L.) under phosphorus deficiency stress
缺磷条件下低分子量有机酸对大豆氮积累和结瘤固氮的影响
5.
Soil drought reduced moisture content and nitrogenase activity of nodules.
土壤干旱降低田菁根瘤的含水量和固氮活性。
6.
Soil carbon and nitrogen sequestration following cropland to forage grassland conversion and its effect to CO_2 and N_2O fluxes
退耕土壤的碳、氮固存及其对CO_2、N_2O通量的影响
7.
asymbiotic nitrogen fixatio
非共生固氮（作用）
8.
stationary source emissions - determination of the mass concentration of nitrogen oxides - performance characteristics of automated measuring systems
固定源辐射-氮氧化物质量浓缩的测定-自动测量系统的性能特性
9.
stationary source emissions-determination of the mass concentration of nitrogen oxides (naphthylethylenediamine photometric method)
固定源辐射-氮氧化合物质量浓度的测定-萘二胺光度测定法
10.
Nitrogen Immobilization by Soil Microbial Biomass and Its Control in Different Soils;
不同处理土壤微生物量对氮素的固持及其调控研究
11.
The Study on Character of Photosynthetic Add Fixing Nitrogen, Yield and Quality of Different Genotype in Sole-cropping and Relay-cropping System
净套作下不同基因型大豆光合、固氮特性及产量品质的比较研究
12.
Distribution and Dynamics of Non-symbiotic Nitrogen Fixing Bacteria in Xilingol Grassland Soil
内蒙古锡林郭勒天然草地非共生固氮细菌的分布和数量动态
13.
nitrogen fixer
(土壤中的)固氮微生物
14.
respiration and nitrogen fixation by root nodules
根瘤的呼吸与固氮作用
15.
An enzyme of nitrogen-fixing bacteria that activates the conversion of nitrogen to ammonia.
定氮酶在固氮细菌中催化氮转化成氨的一种酶
16.
Mycorhizae perform the function of nitrogen fixation and storage.
菌根起着固氮和贮氮的作用。
17.
Isolation of Endophytic Diazotrophic Bacteria from Gramineae Grasses and Their Activity for Nitrogen Fixation and Plant Growth-Promoting;
禾草内生固氮菌的分离及固氮促生效能研究
18.
The Research on Nitrogenase Activities of N_2-fixation Bacteria by Border Separation from Three Flowers Root;
三种花卉根际固氮细菌固氮酶特性研究