Changes in the activity and abundance of the soil microbial community in response to the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP).

Purpose The application of organic and inorganic fertil- izers to soil can result in increased gaseous emissions, such as NH3,N2O, CO2,and CH4,aswellasnitrate leaching, contributing to climate warming and ground and surface water pollution, particularly in regions with hot climates, where high temperatures and high soil nitri- fication rates often occur. The use of nitrification inhibi- tors (NIs) has been shown to effectively decrease nitrogen (N) losses from the soil-plant system. Materials and methods Non-disruptive laboratory incubation experiments were conducted to assess the extent to which temperature (20 and 30 °C) and nutrient source (mineral and organic fertilizers) influence the rate of carbon (C)- and N- related microbial processes in soil in response to the NI 3,4- dimethylpyrazole phosphate (DMPP). Furthermore, short- term changes in the ability ofmicrobes to degrade C substrate