VolatilizationSoilNitrogenMercuryFertilizersManureMercury IsotopesSoil MicrobiologyCypriniformesNitrogen CycleMercuric ChlorideEnvironmental RemediationNebraskaSoil PollutantsThiobacillusSodium CyanideEnvironmental PollutionAir Pollution, RadioactiveBiodegradation, EnvironmentalAmmoniaBiomassAirWater Pollutants, ChemicalBrassicaAgricultureEcosystemCarbonTreesDigestionNitrogen IsotopesSeleniumWater MicrobiologyAnimal FeedPlant RootsUreaZea maysAnimal Nutritional Physiological PhenomenaOxidoreductasesDietary ProteinsDrug Resistance, MicrobialFecesSoil Pollutants, Radioactive