- Build up humus

- Save water

- store nutrients

- Increase agricultural yields

- Promote soil biodiversity

- reduce greenhouse gas contribution

We want to close regional cycles with biochar substrate (similar to a terra preta) from municipal green cuttings and landscaping waste.


"Terra Preta" is Portuguese and means "Black Earth". It has been used in Brazil for 7,000 years. Similar soils have been documented in Wendland, Sweden and Africa. Terra Preta is a mixture of fermented plant residues, dung and charcoal.

The millions of finest pores in the charcoal offer a living space for microorganisms. They are stores for nutrients and water and thus form a very fertile, permanent humus, since charcoal is practically non-rotting.