AlkaliesSoilCalcium CarbonateHydrogen-Ion ConcentrationCarbonatesSoil MicrobiologyGastric Acidity DeterminationFresh WaterSoil PollutantsCarbon DioxideWaterSeawaterGastric AcidAcidsAnti-Ulcer AgentsRanitidineSoil Pollutants, Radioactive2-PyridinylmethylsulfinylbenzimidazolesRabeprazoleGastric JuiceOmeprazoleFertilizersFamotidineGastrinsPasteurizationAchlorhydriaTreesHistamine H2 AntagonistsBiodegradation, EnvironmentalAcid RainRNA, Ribosomal, 16SDuodenal UlcerBacteriaEcosystemBenzimidazolesDNA, RibosomalAgriculturePlant RootsCimetidineSulfoxidesLansoprazoleNizatidineNitrogenAntacidsStomachPhylogenyBiomassMilk BanksProton Pump InhibitorsGastroesophageal RefluxDNA, BacterialPhysicochemical ProcessesSequence Analysis, DNAColaBacteria, AerobicMolecular Sequence DataCarbonHydrochloric AcidBiodiversitySpecific GravityHeartburnManureGastric MucosaBiotaCross-Over StudiesFungiGenes, rRNAGastrointestinal ContentsDental Enamel SolubilityStomach UlcerNitric AcidEnvironmental RemediationSmogColony Count, MicrobialAcid-Base EquilibriumDesert ClimateMetals, HeavyHumic SubstancesPoaceaeCrops, AgriculturalPhenolphthaleinNitrificationEnvironmental MonitoringTooth ErosionSodium HydroxideEriobotryaOligochaetaEsophagusEnprostilTime FactorsPostprandial PeriodBuffersBicarbonatesProton PumpsActinomycetalesAgricultural IrrigationNitrogen CycleTemperatureRhizobium tropiciCarbon Cycle