Figure 3

Graphic biplot for principal components (PC1 and PC2) for soil properties after harvest of sorghum (a) and wheat (b) [ECe, electrical conductivity of soil water saturation paste extract; pHs, pH of soil water saturation paste; WBOC, Walkley and Black organic carbon; MBC, microbial biomass carbon; MBN, microbial biomass nitrogen; MBCN, microbial biomass carbon to nitrogen ratio; DHA, dehydrogenase; AlK, alkaline phosphatase; Ur, urease; α-glu, α-glucosidase; β-glu, β-glucosidase].