InnoSoilPhos – 2015 until 2021

Innovative solutions to sustainable Soil Phosphorus management

Subproject A05 “Representation of adaptation: The on-farm perspective”

Funding: BonaRes - Boden als nachhaltige Ressource für die Bioökonomie, Bundesministerium für Bildung und Forschung (BMBF)


The rationale for the contributions of the Production Economics Group in InnoSoilPhos is the need to understand farm-fertilization behaviour from a production economics perspective including intensity, mix, technology and sources of nutrients. The objective is to identify potential relationships of overall farm and field intensity, farm-specific fertilization patterns, and the (P-) fertilization reduction potential. To find useful approaches for avoiding luxurious P-fertilization, we will develop a deeper insight into the complex process of decision-making of P fertilization in the farms’ production process. We collect and analyse data on use of p-fertilizers on-farms. We will clarify how fertilizers are applied according to on-farm characteristics (e.g., fertilization technology, quantity, sources, time, managerial ability), how policy affects (P-) fertilization (e.g., the EU’s Common Agricultural Policy, the German Fertilizer Ordinance), what role the prices play, how P-fertilization is related to other traits of specific farm (e.g., type, legal form) or field intensity (e.g., other nutrients, chemical pesticide use). We thereby refer to the level/mix of inputs but also the expected environmental effects, and the use of technological innovations. Closing this knowledge gap by analysing a detailed, unique and newly available data set with innovative methods will stimulate the interdisciplinary governance research with focus on P and soil and the delivery of proposals for an improved P governance.

Project team:

Prof. Dr. Silke Hüttel, Dr. Reinhard Uehleke (Bonn University)
Prof. Dr. Bärbel Gerowitt, Dr. Sabine Andert, Paul Winklhofer (Rostock University)

Collaboration partners:

Universität Rostock
Julius-Kühn-Institut - Bundesforschungsinstitut für Kulturpflanzen
Technische Universität München
Brandenburgische Technische Universität Cottbus
Forschungszentrum Jülich



Prof. Dr. Silke Hüttel (

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