Nitrification inhibitors reduce nitrogen losses and improve soil health in a subtropical pastureland

Nitrogen (N) fertilizer management in agricultural field affects soil N budget that can have significant implication greenhouse gas emission and environmental pollution. This study investigates the effects of nitrification inhibitors Dicyandiamide (DCD) 3,4-dimethyl pyrazole phosphate (DMPP) with urea application on microbial community a subtropical pasture field. A experiment consisting four treatments, including control, urea, DCD, DMPP was conducted 2016 2017. Nitrous oxide inorganic-N losses through leaching runoff were quantified. In addition, response to imposed treatments characterized by analysis phospholipid fatty acid (PLFA). The results showed DCD applications significantly reduced fertilizer-induced N2O over 76% 67%, respectively. Although inhibitors’ (NIs) greatly NO3– leaching, there no impact either NI biomass yields. Comparing plant uptake, loss emission, runoff, small pasture. low would indicate NI’s potential increase yield is small. Addition 10 kg ha−1 1 negative effect induced total PLFA, benefited fungi, bacteria, actinomycetes short-term. Overall, demonstrate positive NIs reduction, water quality, improving health enhancing activity reducing stress.