Nitrification inhibitors reduce N2O emissions induced by application of biogas digestate to oilseed rape
العنوان: | Nitrification inhibitors reduce N2O emissions induced by application of biogas digestate to oilseed rape |
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المؤلفون: | Sarah Köbke, Heinz Stichnothe, Katharina Kesenheimer, Thomas Räbiger, Reiner Ruser, Klaus Dittert, Hannes Hegewald, Roland Fuß, Jürgen Augustin, Teresa Suárez Quiñones, Annette Prochnow, Jens Hartung, Heinz Flessa |
المصدر: | Nutrient Cycling in Agroecosystems. 120:99-118 |
بيانات النشر: | Springer Science and Business Media LLC, 2021. |
سنة النشر: | 2021 |
مصطلحات موضوعية: | Biodiesel, Soil Science, 04 agricultural and veterinary sciences, Nitrous oxide, 010501 environmental sciences, Raw material, 01 natural sciences, chemistry.chemical_compound, Nitrate, chemistry, Biogas, Agronomy, Biodiesel production, Greenhouse gas, Digestate, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Environmental science, Agronomy and Crop Science, 0105 earth and related environmental sciences |
الوصف: | Winter oilseed rape (WOSR) is the major oil crop cultivated in Europe and the most important feedstock for biodiesel. Up to 90% of the greenhouse gas (GHG) emissions from biodiesel production can occur during oilseed rape cultivation. Therefore, mitigation strategies are required and need to focus on direct nitrous oxide (N2O) emission as one of the largest GHG contributors in biodiesel production. Earlier studies show that nitrification inhibitors (NIs) can reduce N2O emissions derived from N-fertilization. Since information on the effect of biogas digestates with or without NIs on N2O emissions from WOSR fields is scarce, the aim of this study was to evaluate their effects on N2O emissions, mineral N dynamics, and oil yield in WOSR production fertilized with digestate. The study was conducted at five sites across Germany over three years resulting in 15 full site-years data sets. Across all sites and years, N2O emission from WOSR fertilized with biogas digestate (180 kg NH4+-N ha−1yr−1) ranged between 0.2 and 3.5 kg N2O–N ha−1 yr−1. Due to the reduction of the nitrate concentrations following digestate application, application of NI significantly reduced annual N2O emission by 36%. Our results demonstrate that NI can be an effective measure for reducing N2O emissions from digestate application, but its effectiveness depends on soil and weather conditions, and ultimately on the site-specific potential for N2O production and release. There was no effect of NI application on grain and oil yield. |
تدمد: | 1573-0867 1385-1314 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::5045d02f16cbc7520fc3f69a69c6804c https://doi.org/10.1007/s10705-021-10127-8 |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi...........5045d02f16cbc7520fc3f69a69c6804c |
قاعدة البيانات: | OpenAIRE |
تدمد: | 15730867 13851314 |
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