Gerald Dunst introducing his work on fertile soils at Sonnenerde, Austria

Creating humus-rich fertile soils from waste products is Sonnenerde's expertise
The green wastes that communities and households deliver to the composting facility of Gerald Dunst in Austria for disposal are used here as feedstock for making highly fertile humus-rich soils. In 2012, the SME began working with a PYREG plant that converst papermill sludge into Biochar which is then combined with composting of nutrient-rich soils. This mixture is the most... ..more

Introduction to the first Biochar field trial in Aas, Norway

Video taken in October 2010 - submitted by Adam O'Toole