Contribution of $ N_{2} $O and $ NH_{3} $ to total greenhouse gas emission from fertilization: results from a sandy soil fertilized with nitrate and biogas digestate with and without nitrification inhibitor
Abstract Fertilization with biogas residues from the digestion of energy crops is of growing importance. Digestate from silage maize (Zea mays L.) is a new fertilizer with a high potential for ammonia ($ NH_{3} $) and nitrous oxide ($ N_{2} $O) emission. The aim of this study was to determine the effect of different maize fertilization systems [180 kg N $ ha^{−1} $ in form of calcium nitrate (MIN), biogas digestate from maize (DIG) and biogas digestate from maize mixed with the nitrification inhibitor Piadin (DIG + NI)] on the emission of $ NH_{3} $ and $ N_{2} $O from a sandy soil and to assess the total greenhouse gas emission of these fertilization systems. The study is based on a randomized field plot experiment in central Germany and an experimental period of a full year. Annual $ N_{2} $O-N emission was generally low [0.21 (MIN) to 0.37 (DIG) kg N $ ha^{−1} $] without differences between treatments. The application of Piadin reduced $ N_{2} $O emissions by 37 and 62 % during the weeks following digestate application but the annual $ N_{2} $O emission was not affected by the fertilization treatment. $ NH_{3} $ emission was only significant for treatments fertilized with digestate. It was not affected by Piadin and accounted for 27 % (+NI) and 29 % of the applied ammonium. Total greenhouse gas emission was dominated by $ NH_{3} $ losses (reducing the fertilizer value and inducing indirect $ N_{2} $O emissions) for the treatments fertilized with maize digestate. The most important greenhouse gas emission source of the MIN treatment were emissions from fertilizer production. Our results show the high potential of digestate from maize as a new source of $ NH_{3} $ emission. Mitigation measures are essential to save the value of this new fertilizer type and to reduce atmospheric and environmental pollution by direct emission of $ NH_{3} $ and indirect emission of greenhouse gases..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2014 |
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| Erschienen: |
2014 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:100 |
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| Enthalten in: |
Nutrient cycling in agroecosystems - 100(2014), 1 vom: 09. Aug., Seite 121-134 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wolf, Ulrike [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| BKL: | |
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| Themen: |
Ammonia volatilization |
| Anmerkungen: |
© Springer Science+Business Media Dordrecht 2014 |
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| doi: |
10.1007/s10705-014-9631-z |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC2113609924 |
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| 245 | 1 | 0 | |a Contribution of $ N_{2} $O and $ NH_{3} $ to total greenhouse gas emission from fertilization: results from a sandy soil fertilized with nitrate and biogas digestate with and without nitrification inhibitor |
| 264 | 1 | |c 2014 | |
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| 520 | |a Abstract Fertilization with biogas residues from the digestion of energy crops is of growing importance. Digestate from silage maize (Zea mays L.) is a new fertilizer with a high potential for ammonia ($ NH_{3} $) and nitrous oxide ($ N_{2} $O) emission. The aim of this study was to determine the effect of different maize fertilization systems [180 kg N $ ha^{−1} $ in form of calcium nitrate (MIN), biogas digestate from maize (DIG) and biogas digestate from maize mixed with the nitrification inhibitor Piadin (DIG + NI)] on the emission of $ NH_{3} $ and $ N_{2} $O from a sandy soil and to assess the total greenhouse gas emission of these fertilization systems. The study is based on a randomized field plot experiment in central Germany and an experimental period of a full year. Annual $ N_{2} $O-N emission was generally low [0.21 (MIN) to 0.37 (DIG) kg N $ ha^{−1} $] without differences between treatments. The application of Piadin reduced $ N_{2} $O emissions by 37 and 62 % during the weeks following digestate application but the annual $ N_{2} $O emission was not affected by the fertilization treatment. $ NH_{3} $ emission was only significant for treatments fertilized with digestate. It was not affected by Piadin and accounted for 27 % (+NI) and 29 % of the applied ammonium. Total greenhouse gas emission was dominated by $ NH_{3} $ losses (reducing the fertilizer value and inducing indirect $ N_{2} $O emissions) for the treatments fertilized with maize digestate. The most important greenhouse gas emission source of the MIN treatment were emissions from fertilizer production. Our results show the high potential of digestate from maize as a new source of $ NH_{3} $ emission. Mitigation measures are essential to save the value of this new fertilizer type and to reduce atmospheric and environmental pollution by direct emission of $ NH_{3} $ and indirect emission of greenhouse gases. | ||
| 650 | 4 | |a Nitrous oxide | |
| 650 | 4 | |a Nitrification inhibitor | |
| 650 | 4 | |a Ammonia volatilization | |
| 650 | 4 | |a Biogas digestate | |
| 650 | 4 | |a Greenhouse gas balance | |
| 700 | 1 | |a Fuß, Roland |4 aut | |
| 700 | 1 | |a Höppner, Frank |4 aut | |
| 700 | 1 | |a Flessa, Heinz |4 aut | |
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