The aim of this workshop is to present different options to treat and to use currently not allowed phosphorus (P) fertilizers from urban areas, and to discuss how we can increase the use of recycled P in organic farming systems, without compromising premium product quality and the long-term sustainability of organic farming.
As a point of departure for the discussions, we present current knowledge about the P status of organic farming systems and the availability and quality of recycled P fertilizers.
Moderator: Dr. Anne-Kristin Løes, senior researcher Bioforsk Organic Food and Farming, leader of Improve-P workpackage 4, “Stakeholder perceptions about applicability of alternative P fertilizers in organic farming”.
Program
- Welcome to the workshop and introduction to the Improve-P project
Dr. Anne-Kristin Løes, Bioforsk Organic Food and Farming,Norway - When do we need additional P fertilizers in organic agriculture?
Dr. Julia Cooper, University of Newcastle - Sewage sludge, human urine, digestate, compost…What do we want to apply? Developing waste treatment technologies implies new possibilities for organic agriculture
PhD-student Gregor Mayer, ETH and Dr. Paul Mäder, FiBL, Switzerland - Off-farm P fertilizers: Potential risks and how to ensure soil and product quality?
Dr. Jürgen K. Friedel, University of Natural Resources and Life Sciences Vienna, Austria - Discussion, conclusions and answers to a simple questionnaire
The presentations will be followed by by coffee table discussions; the task of the discussion teams is to reveal and summarize the most important arguments in favor and disfavor of increasing the use of various alternative P fertilizers (APF). Each table will discuss one possible APF, e.g. incinerated sewage sludge, anaerobically digested organic waste, composted household waste etc.
Further information
Contact
- Dr. Anne-Kristin Løes, Bioforsk Organic Food and Farming, Paul Mäder
Venue
18th OWC, Istanbul, Turkey, Tuesday October 14, 2014, time 11:30-13:00.
Links
- Flyer "OWC workshop: Re-use the phosphorus!" (120.8 KB)
- improve-p.uni-hohenheim.de: Homepage of the Project