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Nitrous oxide emissions from potato cropping under drip-fertigation in eastern Germany |
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| Authors: | Benjamin Trost Hilde Klauss Annette Prochnow Katrin Drastig |
| Affiliation: | 1. Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469 Potsdam, Germanybtrost@atb-potsdam.de;3. Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469 Potsdam, Germany;4. Faculty of Agriculture and Horticulture, Chair Utilization Strategies for Bioresources, Humboldt-Universit?t zu Berlin, Hinter der Reinhardstr. 8–18, 10115 Berlin, Germany |
| Abstract: | In this article, a drip-fertigation system was compared to a control without irrigation concerning the amount of nitrous oxide (N2O) emissions under the climatic conditions of north-east Germany. The investigation was carried out at a field research station in the federal state of Brandenburg. The mean N2O emissions under drip-fertigation were significantly higher than under non-irrigation. The higher N2O emissions under drip-fertigation can be explained by a constantly higher water-filled pore space (WFPS). These higher values in WFPS were caused by the necessary nutrient supply in combination with additional water application in periods with frequent rainfall. |
| Keywords: | nitrous oxide drip-fertigation soil moisture potato cropping |