Posted 6/30/2020 10:28 (#8345096 - in reply to #8345055) Subject: RE: Chemical behavior of NH3 and other N sources in soil?
Humeston, IA
As mentioned, soil temperature (warmer = more), soil moisture (~ drained upper limit is greatest), and pH (higher = more) affects nitrification (conversion of NH4 to NO3). In reality it is the soil biology doing the conversion, but these external influences affect the soil biology. More studies are being done to determine what abundance of species of bacteria will cause more/less nitrification.