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Título: | Effect of mineral and organic fertilization on crop yield, nitrogen uptake, carbon and nitrogen balances, as well as soil organic carbon content and dynamics: results from 20 European long-term field experiments of the twenty-first century |
Autor: | Körschens, Martin; Albert, Erhard; Armbruster, Martin; Barkusky, Dietmar; Baumecker, Michael; Behle-Schalk, L.; Bischoff, R.; Cergan, Z.; Ellmer, Frank; Herbst, Friedhelm; Hoffmann, Sandor; Hofmann, Bodo; Kismanyoky, T.; Kubát, J.; Kunzova, Eva; López-Fando, Cristina CSIC ; Merbach, Inés; Merbach, Wolfgang; Pardo Fernández, María Teresa ; Rogasik, J.; Rühlmann, J.; Spiegel, H.; Schulz, Elke; Tajnsek, Anton; Toth, Zoltan; Wegener, Hans; Zorn, Wilfried | Palabras clave: | Long-term experiments Crop yields Nitrogen uptake Soil organic carbon Carbon and nitrogen balances |
Fecha de publicación: | 2013 | Editor: | Taylor & Francis | Citación: | Archives of Agronomy and Soil Science 59(8): 1017-1040 (2013) | Resumen: | Assembled results from 20 European long-term experiments (LTE), mainly from the first decade of the twenty-first century, are presented. The included LTEs from 17 sites are the responsibility of institutional members of the International Working Group of Long-term Experiments in the IUSS. Between the sites, average annual temperatures differ between 8.1 and 15.3°C, annual precipitation between 450 and 1400 mm, and soil clay contents between 3 and 31%. On average of 350 yield comparisons, combined mineral and organic fertilization resulted in a 6% yield benefit compared with mineral fertilization alone; in the case of winter wheat, the smallest effect was 3%, the largest effect, seen with potatoes, was 9%. All unfertilized treatments are depleted in soil organic carbon (SOC), varying between 0.36 and 2.06% SOC. The differences in SOC in unfertilized plots compared with the respective plots with combined mineral (NPK) and organic (10 t ha-1 farmyard manure) fertilization range between 0.11 and 0.72%, with an average of 0.3% (corresponding to ∼15 t ha-1). Consequently, the use of arable soils for carbon sequestration is limited and of low relevance and merely depleted soils can temporarily accumulate carbon up to their optimum C content. © 2013 Copyright Taylor and Francis Group, LLC. | Versión del editor: | http://dx.doi.org/10.1080/03650340.2012.704548 | URI: | http://hdl.handle.net/10261/198300 | DOI: | 10.1080/03650340.2012.704548 | Identificadores: | doi: 10.1080/03650340.2012.704548 issn: 0365-0340 e-issn: 1476-3567 |
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