Treatments TPH Mean (mg/kg) Standard error Remarks
Control (Natural attenuation) 3286.94 A 0.481 Significant difference
NPK fertilizer 924.99 B 0.045 Significant difference
BS+CP 786.6 C 0.145 Significant difference
BS 727.10 D 0.113 Significant difference
MS 691.21 E 0.170 Significant difference
GS 647.31 F 0.119 Significant difference
PD+GS 640.70 G 0.201 Significant difference
CD 621.18 H 0.224 Significant difference
BS+MS 617.82 I 0.105 Significant difference
PD+BS 574.44 J 0.176 Significant difference
PD+CD 556.24 K 0.112 Significant difference
CD+CP 529.58 L 0.275 Significant difference
CP 514.42 M 0.229 Significant difference
GS+CP 497.17 N 0.066 Significant difference
CD+MS 490.9 O 0.098 Significant difference
GS+BS 471.13 P 0.108 Significant difference
CD+GS 457.69 Q 0.144 Significant difference
GS+MS 440.79 R 0.106 Significant difference
PD+CP 383.74 S 0.148 Significant difference
PD 337.68 T 0.200 Significant difference
Table 6: Grouping of TPH mean for the different treatments computed by Tukey’s method.