Figure 2

Effects of biofertilizer application on the soil enzyme activity five dose levels (20, 40, 60, 80 and 100/mL) on heavy metal concentration in the soil after application and four treatments represent as (CK) control, (B) Bacillus firmus, (P) Pseudomonas aeruginosa (BP) combination of Bacillus firmus and Pseudomonas aeruginosa Values are means ± SE (n = 3). Graphs (A) URE, (B) DEH, (C) APK, (D) β-D-GUL, (E) ARY. Bars with different letters represent significantly (p < 0.05) differences after ANOVA and an LSD (Least significant difference) test.