Owing to their high carbon and nitrogen contents, biogas residues may lead to higher carbon dioxide (CO₂) and nitrous oxide (N₂O) emissions from soils. Acidification of biogas slurry and application of nitrification inhibitors (NIs) could mitigate the emission of these gases. An incubation experiment was therefore carried out to investigate the effect of NIs, DMPP (3, 4-dimethylpyrazole phosphate), and PIADIN (active ingredients: 3.00–3.25% 1,2,4-triazole and 1.50–1.65% 3-methylpyrazole), on CO₂ and N₂O emissions from soils fertilized with biogas residues and acidified biogas residues. Biogas residues produced higher ammonium-nitrogen (NH₄⁺-N) and nitrate-nitrogen (NO₃⁻-N) concentrations in soils which resulted in higher emissions of CO₂-C and N₂O-N than that from acidified biogas residues. Both DMPP and PIADIN significantly decreased the emissions of CO₂-C (8.1–55.8%) and N₂O-N (87–98%) and maintained lower NH₄⁺-N and NO₃⁻-N concentrations when compared to control (without nitrification inhibitors). However, the DMPP had a higher reduction capability for CO₂-C emissions than PIADIN in acidified biogas residue applied soil. In conclusion, the acidification of biogas residues and application of NIs are effect in reducing gaseous emission from biogas residue fertilized soils and thus could improve the fertilizer effectiveness of the residues.

由于其高碳和氮含量，沼气残留物可能导致土壤中更高的二氧化碳 (CO ₂ ) 和一氧化二氮 (N ₂ O) 排放。沼液的酸化和硝化抑制剂（NIs）的应用可以减少这些气体的排放。因此，进行了孵育实验以研究 NI、DMPP（3, 4-二甲基吡唑磷酸盐）和 PIADIN（活性成分：3.00–3.25% 1,2,4-三唑和 1.50–1.65% 3-甲基吡唑）的影响，关于使用沼渣和酸化沼渣施肥的土壤中的CO ₂和 N ₂ O 排放。沼渣产生的铵态氮 (NH ₄ ⁺ -N) 和硝态氮 (NO ₃ ⁻-N) 浓度导致的 CO ₂ -C 和 N ₂ O-N排放高于酸化沼气残留物的排放。既DMPP和PIADIN显著减少CO的排放₂ -C（8.1-55.8％）和N ₂ O-N（87-98％），并保持较低的NH ₄ ⁺ -N和NO ₃ ^-时，与对照相比-N浓度（无硝化抑制剂）。然而，DMPP 对 CO ₂具有更高的还原能力-C 排放量比 PIADIN 在酸化沼渣施用的土壤中。综上所述，沼渣酸化和NIs的施用有利于减少沼渣施肥土壤的气体排放，从而提高沼渣的肥效。