Fig. 3From: The effect of biochar on nitrogen availability and bacterial community in farmlandPrincipal component analysis of the soil bacterial community structure. Axis 1 (51.23%) and axis 2 (29.24%) explained the variations based on the Bray-Curtis dissimilarities. Treatments CK, BC1, BC2, BC3, and BC4 had biochar dosages of 0%, 0.5%, 1%, 2%, and 4%Back to article page