Else Bünemann of FiBL introduces the video by explaining the relevance of phosphorus. She presents the results of a life cycle assessment, an analysis of different national regulations and a stakeholder survey and compares the pros and cons of recycled P fertilizers in the overall conclusions.
She refers to a recent study in Germany which found that 40 % of the organically managed fields are low in P, indicating a need for P replenishment. Bünemann also explains the actual state of P management in organic farming.
- fibl.org: Video tutorial: Phosphorus recycling for organic agriculture
- improve-p.uni-hohenheim.de: Website of the Project IMPROVE-P