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Phosphorus fractions in soil of the Jena Experiment (Main Experiment, year 2007)

This data set contains measurements of phosphorus fractions (Hedley fractions) in soil collected 2007 from the main experiment plots of a large grassland biodiversity experiment (the Jena Experiment; see further details below). In the main experiment, 82 grassland plots of 20 x 20 m were established from a pool of 60 species belonging to four functional groups (grasses, legumes, tall and small herbs). In May 2002, varying numbers of plant species from this species pool were sown into the plots to create a gradient of plant species richness (1, 2, 4, 8, 16 and 60 species) and functional richness (1, 2, 3, 4 functional groups). Plots were maintained by bi-annual weeding and mowing. Soil sampling and analysis: Five independent soil samples per plot were taken in a depth of 0-15 cm using a soil corer with an inner diameter of 1 cm. The five samples per plot were combined to one composite sample per plot. A four-step sequential P fractionation (Hedley fractions) was applied. Sequentially, 20 ml NaHCO3 (adjusted to pH 8.5), 30 ml NaOH, and 35 ml HCl were used as extraction solutions for 0.5 g soil. The last step comprised the combustion (550 °C) of the remaining soil to destroy all organic material followed by shaking with 20 ml H2SO4. Organic P concentrations of the respective fractions were calculated as the difference between total dissolved P and inorganic P. Duplicate phosphate concentrations of P fractions in soil were measured photometrically (molybdenum blue-reactive P) with a Continuous Flow Analyzer (Bran&Luebbe, Germany).

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Cite this as

Oelmann Yvonne, Wilcke Wolfgang (2015). Dataset: Phosphorus fractions in soil of the Jena Experiment (Main Experiment, year 2007). https://doi.org/10.1594/PANGAEA.854460

DOI retrieved: 2015

Additional Info

Field Value
Imported on January 12, 2023
Last update August 4, 2023
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.854460
Author Oelmann Yvonne
More Authors
Wilcke Wolfgang
Source Creation 2015
Publication Year 2015
Resource Type text/tab-separated-values - filename: JenExp_CNP_fracP_2007
Subject Areas
Name: Agriculture

Name: Lithosphere

Related Identifiers
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Identifier: https://doi.org/10.1016/j.geoderma.2011.09.012
Type: DOI
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Authors: Oelmann Yvonne , Richter Anika K , Roscher Christiane , Rosenkranz Stephan , Temperton Vicky , Weisser Wolfgang W , Wilcke Wolfgang , Roscher Christiane , Schumacher Jens , Baade Jussi , Wilcken Sara , Gleixner Gerd , Weisser Wolfgang W , Schmid Bernhard , Schulze Ernst-Detlef .

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Identifier: https://store.pangaea.de/Publications/Jena_Experiment/PlotInformationMainExperiment.txt
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Relation: References
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