
How natural cycles can be closed with wood ash
Recycled material instead of waste: wood ash is good for soil and plants - if the quality is right. The German Federal Quality Association for Food Ash ensures reliable wood ash standards with its certifications. The RAL-Dünger label for fertilisers provides the necessary certification for natural wood ashes to be used in the circular economy.
https://www.biooekonomie-bw.de/en/articles/news/how-natural-cycles-can-be-closed-wood-ash