The application of vinasse, an organic byproduct of ethanol production, can enhance greenhouse gas emissions from N fertilizers, especially nitrous oxide (N₂O). The objective of this work was to test the efficiency of the nitrification inhibitor (NI) 3,4 dimethylpyrazole phosphate (DMPP) in reducing N₂O emissions from urea (UR) and ammonium nitrate (AN) applied with or without standard (V) or concentrated vinasse (CV). Two laboratory studies were conducted with repacked soil columns from a sugarcane field. Based on usual field rates, UR and AN were added at a rate equivalent to 100 kg N ha⁻¹, V was added at 100 m³ ha⁻¹ (51 kg N ha⁻¹), and CV was added at 20 m³ ha⁻¹ (Exp. 1: 35 kg N ha⁻¹ and Exp. 2: 56 kg N ha⁻¹). N₂O emissions were measured for 75 and 61 days after the input of fertilizers and vinasses. When mineral fertilizers were compared, the N₂O-N emission factors (EFs) were: 0.08% (AN) and 1.44% (UR). Combined with N fertilizers, vinasses (CV and V) greatly enhanced the N₂O emissions from soil (ranging from 0.76% to 1.5% in one study and 1.37% to 6.27% in the other). In addition, CV + N fertilizer emitted more N₂O than V + N fertilizer or N fertilizer alone. However, NI reduced N₂O emissions by 80% on average for vinasses (CV and V) plus N fertilizer (AN and UR) and UR alone, but not for AN alone. Since both vinasses and mineral N fertilizers are standard inputs for sugarcane production and high N₂O emissions are observed when they are applied in the same area, NI should be considered for mitigation of soil N₂O emissions from sugarcane used for bioenergy.

酒糟（乙醇生产的一种有机副产品）的应用可以增加氮肥，尤其是一氧化二氮 (N ₂ O) 的温室气体排放。这项工作的目的是测试硝化抑制剂 (NI) 3,4 二甲基吡唑磷酸酯 (DMPP) 在减少尿素 (UR) 和硝酸铵 (AN) 中N ₂ O 排放方面的效率，使用或不使用标准 (V)或浓缩酒糟 (CV)。使用来自甘蔗田的重新填充的土柱进行了两项实验室研究。根据通常的田间用量，UR 和 AN 的添加量相当于 100 kg N ha ^-1，V 在 100 m ³ ha ^-1 (51 kg N ha ^-1 ) 处添加，CV 在 20 m ³处添加ha ^-1（实验1：35 kg N ha ^-1和实验2：56 kg N ha ^-1）。在投入化肥和酒糟后 75 天和 61 天测量了N ₂ O 排放量。比较矿物肥料时，N ₂ O-N 排放因子 (EF) 为：0.08% (AN) 和 1.44% (UR)。与氮肥相结合，酒糟（CV 和 V）大大提高了土壤中的 N ₂ O 排放（一项研究中的范围为 0.76% 至 1.5%，另一项研究中的范围为 1.37% 至 6.27%）。此外，CV + N 肥料比 V + N 肥料或单独的N 肥料排放更多的 N ₂ O。然而，NI 减少了 N ₂酒糟（CV 和 V）加上氮肥（AN 和 UR）和单独的 UR 的 O 排放量平均增加 80%，但单独的 AN 则不然。由于酒糟和矿物氮肥都是甘蔗生产的标准投入物，并且在同一地区施用时观察到高 N ₂ O 排放，因此应考虑使用 NI 来减轻用于生物能源的甘蔗的土壤 N ₂ O 排放。