Comparative Effectiveness of Four Nitrification Inhibitors for Mitigating Carbon Dioxide and Nitrous Oxide Emissions from Three Different Textured Soils

Nitrification inhibitors (NIs) can be used to reduce both NO3−-N leaching and N2O-N emissions. However, the comparative efficacies of NIs strongly affected by soil type. Therefore, four nitrification (dicyandiamide (DCD), 3, 4-dimethylpyrazole phosphate (DMPP), nitrogenous mineral fertilizers containing DMPP ammonium stabilizer (ENTEC) active ingredients: 3.00–3.25% 1, 2, 4-triazole 1.50–1.65% 3-methylpyrazole (PIADIN)) were investigated in three different textured N-fertilized (0.5 g NH4+-N kg−1 soil) soils Schleswig-Holstein, namely, Marsch (clayey), Östliches Hügelland (loamy) Geest (sandy) under a controlled environment. Total CO2-C emissions significantly higher from than Geest. In Marsch, showed highest inhibitory effect on emission (50%), followed PIADIN (32%) ENTEC (16%). Hügelland, DCD equal (73%), (64%) (36%). stronger (86% 47%) (56% 30%) (54% 16%). Geest, was more effective reducing (88%) (70%) (33%). Thus, it concluded that is better NI for clay loamy soils, while are sandy inhibit gaseous