title: Soil amendments and the rhizosphere effect.
mesh_terms: D000641:Ammonia / Q000378:metabolism; D000645:Ammonium Sulfate / Q000378:metabolism; D001419:Bacteria / Q000254:growth & development* / Q000378:metabolism; D002452:Cell Count; D009584:Nitrogen / Q000378:metabolism; D010944:Plants / Q000382:microbiology*; D012987:Soil; D012988:Soil Microbiology; D013025:Glycine max; D014908:Triticum; D014508:Urea / Q000378:metabolism
chemical_list: D012987:Soil; D000641:Ammonia; D014508:Urea; D009584:Nitrogen; D000645:Ammonium Sulfate