Re-evaluation of the yield response to phosphorus fertilization based on meta-analyses of long-term field experiments

Phosphorus (P) fertilizer recommendations in most European countries are based on plant-available soil P contents and long-term field experiments. Site-specific conditions are often neglected, resulting in excessive P fertilizer applications. P fertilization experiments including relevant site and s...

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Published inAmbio Vol. 47; no. Suppl 1; pp. S50 - S61
Main Authors Buczko, Uwe, van Laak, Michael, Eichler-Löbermann, Bettina, Gans, Wolfgang, Merbach, Ines, Panten, Kerstin, Peiter, Edgar, Reitz, Thomas, Spiegel, Heide, von Tucher, Sabine
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Science + Business Media 01.01.2018
Springer Netherlands
Springer Nature B.V
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Summary:Phosphorus (P) fertilizer recommendations in most European countries are based on plant-available soil P contents and long-term field experiments. Site-specific conditions are often neglected, resulting in excessive P fertilizer applications. P fertilization experiments including relevant site and soil parameters were evaluated in order to analyze the yield response. The database comprises about 2000 datasets from 30 field experiments from Germany and Austria. Statistical evaluations using a classification and regression tree approach, and multiple linear regression analysis indicate that besides plant-available soil P content, soil texture and soil organic matter content have a large influence on the effectiveness of P fertilization. This study methodology can be a basis for modification and specification of existing P fertilization recommendations and thus contribute to mitigate environmental impacts of P fertilization.
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ISSN:0044-7447
1654-7209
DOI:10.1007/s13280-017-0971-1