Soil MicrobiologySoilMicrobiologySoil PollutantsNitrogen FixationMicrobiological TechniquesBacteriaNitrogen CompoundsNitrogen CycleNitrogen IsotopesBacteriologyBlood Urea NitrogenNitrogen DioxideLaboratories, HospitalLaboratoriesBacteriological TechniquesFertilizersReactive Nitrogen SpeciesRNA, Ribosomal, 16SBacteria, AerobicCarbonEcosystemBacterial InfectionsSoil Pollutants, RadioactiveBacteria, AnaerobicDNA, BacterialBiodegradation, EnvironmentalFungiCulture MediaAnti-Bacterial AgentsNitrogen OxidesPlant RootsBiomassTreesPhylogenyDNA, RibosomalEnvironmental MicrobiologyLaboratory InfectionNitratesPII Nitrogen Regulatory ProteinsSequence Analysis, DNAAmmoniaClinical Laboratory TechniquesAgricultureGram-Negative BacteriaFood MicrobiologyMolecular Sequence DataWater MicrobiologyBacterial Typing TechniquesMicrobial Sensitivity TestsBiodiversityQuaternary Ammonium CompoundsBacterial ProteinsDevice ApprovalPoaceaeManureMycologyEnvironmental MonitoringEquipment SafetyPolymerase Chain ReactionEnterobacteriaceaeGram-Positive BacteriaGenes, rRNASymbiosisAutomationGram-Negative Bacterial InfectionsEvaluation Studies as TopicNitrificationArchaeaDenitrificationGlutamate-Ammonia LigaseCommunicable DiseasesSpecies SpecificityFermentationFecesGenes, BacterialCrops, AgriculturalColony Count, MicrobialPlant LeavesClinical Laboratory Information SystemsStaphylococcusUreaPhosphorusMedical Laboratory PersonnelHistory, 20th CenturyWaterHydrogen-Ion ConcentrationMycosesNitrogen Mustard CompoundsTime FactorsDrug Resistance, BacterialBacteremiaNitrogenaseSpecimen HandlingSensitivity and SpecificityStaphylococcal InfectionsPseudomonasQuality ControlTemperatureAmino Acids