Table 4  Interaction effect of charcoal production sites by locationby soil depth on selected micronutrients, P and S enzymes.

Site (S)

CPS

0.32^a

0.10^a

1.70^a

0.13^a

1.57^a

2.13^a

0.16^a

6.82^a

1.30^a

NPS

0.29^b

0.09^b

1.48^b

0.12^a

1.50^b

1.78^b

0.16^a

6.42^a

1.11^b

Location (L)

Ìrèle

0.27^b

0.10^a

1.84^a

0.12^a

1.66^a

1.03^c

0.16^a

8.95^a

1.39^a

Òkè-Àkò

0.33^a

0.10^a

1.23^c

0.11^a

1.53^b

2.69^a

0.16^a

2.55^b

1.32^b

Ìpaò

0.33^a

0.83^b

1.70^b

0.16^a

1.41^c

2.13^b

0.16^a

8.37^a

0.91^c

Soildepth (SD)

0–15cm

0.30^b

0.08^b

1.70^b

0.15^a

1.60^a

1.94^a

0.16^a

7.60^a

1.24^a

15–30cm

0.30^b

0.10^a

1.80^a

0.12^a

1.50^b

2.03^a

0.16^a

6.51^a

1.24^a

30–45cm

0.33^a

0.10a

1.33^c

0.11^a

1.60^a

1.89^a

0.15^b

5.76^a

1.14^b

Interactions

S x L

*

*

*

ns

*

*

*

*

*

S x SD

*

*

*

ns

*

*

*

*

*

L x SD

*

*

*

ns

*

*

*

*

*

S x L x SD

*

*

*

ns

*

*

*

*

*