InnoSoilPhos - Innovative solutions to sustainable Soil Phosphorus management
Project in the program "BonaRes - Boden als nachhaltige Ressource für die Bioökonomie" supported by the Federal Ministery of Education
Project executing organization: Jülich
Objectives of InnoSoilPhos
Mineral P-fertilizers are on the one side essential for nutrition of agricultural plants but on the other hand can also cause eutrophication of water bodies. Mineral-P-fertilizers are mainly produced by the limited P-resource rock phosphate. Due to these limitations of P agriculture is facing a huge challenge, namely to ensure the nutrition of humans and the income of farmers as well as limiting the ecological footprint, which is challenging the society as a whole. Therefore, the project InnoSoilPhos wants to answer not only scientific but also questions of social and humanistic science and is working in 10 working groups at four different scales: (I) the atomic and molecular scale, (II) the plot- to field scale, (III) the field-to catchment scale, and (IV) the societal scale. Beside the University of Rostock (UR) the following institutions are involved: the Brandenburgische Technical University Cottbus - Senftenberg (BTU), the Julius-Kühn-Institute (JKI), the University of Munich (TUM), the Research Center Jülich (FZJ), the Research Unit Sustainability and Climate Policy in Leipzig (FNK) and since 2018 the Bergische Universität Wuppertal (BUW).
Scale (I):
- fundamental understanding of P-fixation and desorption on soil matrix by quantum-chemical modeling (WP 1-1: D. Freese, BTU; WP 1-2: O. Kühn, UR)
- the effects of soil microorgansims on P-binding and activation (WP 1-3: M. Schloter, TUM; C. Baum, UR)
- the spatial heterogeneity, P-sorption, -stocks and possible –activation/usage in sub soil (WP 1-4: N. Siebers, FZJ).
Scale (II):
- alternative P fertilizers e. g. bone char are developed and evaluated by pot and field experiments (WP 2-1: B. Eichler-Löbermann, UR; WP 2-2: K. Panten, JKI; WP 2-1: S. v. Tucher, TUM)
- the effectiveness of P-fertilization is evaluated by metastudies to prove and improve fertilization recommendations (WP 2-3: U. Buczko, UR)
- the redox-induced speciation, release kinetics and availibility of P in soils is evaluated (WP 2-4, J. Rinklebe, BUW, K. Baumann, UR)
Scale (III):
- the hot spots and hot moments of P leaching from soil (WP 3: B. Lennartz, UR)
Scale (IV):
- synthesis of results of the first three scales, the in-deep-analysis of alternative P fertilizers like bone char (WP 4-1...4-5: P. Leinweber, UR)
- identification of farm fertilization patterns, evaluation of technical and economic efficiency (B. gerwitt, UR, S. Hüttel, UB)
- ethical and social aspects of (changes in) P usage (WP 4-6: F. Ekardt, FNK)