Plot

Soil TPH concentration (mg∙kg⁻¹-soil)

Soil DHA level (mg INTF g⁻¹ DW h⁻¹)

N

6143.2 ± 50.8 a

9.31 ± 0.75 b

1500

4638.4 ± 53.3 b

12.07 ± 0.84 ab

5000

3872.3 ± 89.8 c

13.86 ± 0.15 a

8000

4819.2 ± 94.6 b

11.85 ± 0.66 ab