Thanks to biochar, a mighty soil rich in nutrients and humus has developed in some areas of the Amazon over the centuries. This can also be achieved on European soils. Bruno Glaser, soil biogeochemist and professor at the University of Halle, comes to this…
Germany is still a laggard when it comes to the approval of biochar. Currently, it is only permitted in the form of charcoal with a carbon content of at least 80 percent. Technology has been available for a long time to produce biochar free of…
If biochar is also composted, it is heavily loaded with nitrogen (nitrate) and promotes plant growth more strongly than uncomposted biochar. This was shown, among other things, in studies in which the effects of biochar were tested in the vineyard…
A global humus build-up of only 1% would be sufficient to reduce the CO2 content of the atmosphere to a safe level. In their book “Die Humusrevolution” (Oekom Verlag 2017), the authors Scheub and Schwarzer present strategies in which biochar…
Most composting plants are not interested in the production of high-quality composts, but only in waste disposal. The separate collection of biowaste has triggered a composting boom, which has greatly damaged the reputation of compost…
In recent years, the terra preta (black earth) phenomenon has aroused increasing interest. These are man-made soils discovered in the middle of tropical rainforests that are up to 3000 years old, with high nutrient and organic matter in the soil…