Adding “biosolids” along with conventional fertilizer may reduce greenhouse gas emissions while improving soil, according to a new study from University of Alberta.
Pulp mill waste destined for the landfill could instead be useful as an organic fertilizer to help reduce the environmental impact of using conventional fertilizers while improving soil and tree growth, University of Alberta research shows.
A two-year study conducted on a hybrid poplar tree plantation in northern Alberta showed that compared with using conventional fertilizers alone, adding biosolids — wood and other fibres left over from pulp and paper production — reduced harmful greenhouse gas emissions from the soil.
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