The following articles have been published on the TOPKO project so far:

- Climate-friendly potting soil with biochar

- Oldenburg researchers use charcoal instead of peat in potting soil

- Henke, B.; Röhrdanz, M.; Wark, M. (2025): From residual biomass to peat replacement: Hydro- and pyrolysis chars for sustainable substrates in horticulture. VDLUFA publication series volume 82/2025, 255 - 262.

The following podcast includes the TOPKO project:

https://www.facebook.com/reel/2125878768198621