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Archives of Agronomy and Soil Science Volume 60, 2014 - Issue 11
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Short Communication

Nitrous oxide emissions from potato cropping under drip-fertigation in eastern Germany

Benjamin TrostLeibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469Potsdam, GermanyCorrespondence[email protected]
,
Hilde KlaussLeibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469Potsdam, Germany
,
Annette ProchnowLeibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469Potsdam, Germany;Faculty of Agriculture and Horticulture, Chair Utilization Strategies for Bioresources, Humboldt-Universität zu Berlin, Hinter der Reinhardstr. 8–18, 10115Berlin, Germany
&
Katrin DrastigLeibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469Potsdam, Germany
Pages 1519-1531 | Received 01 Nov 2013, Accepted 08 Mar 2014, Published online: 06 Apr 2014
 
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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.

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