Biochar as a Soil Amendment in Minnesota: Findings from Literature and Interviews
Biochar, a stable carbon created via pyrolysis (heating without the presence of oxygen), can be produced from the massive amounts of woody debris generated by tree removal and trimming, brush removal, woodlands management, and storm damage. Biomass that is currently burned or left to decompose releases most of the carbon back into the atmosphere. Conversion of woody biomass into biochar could provide an alternative to burning and therefore reduce greenhouse gas emissions. Biochar is also a valuable soil amendment that can improve soil health and productivity. There is a high interest from local produce growers and regenerative farmers in Central Minnesota to utilize biochar as a soil amendment.