Table 3 Interaction effects of charcoal production locationand soil depth on selected micronutrients, Pand S enzymes.

From: Impact of charcoal production on soil micronutrients, enzyme activities, microbial composition, and biomass phosphorus in a derived savannah ecosystem of Nigeria

Location

Depth

Copper

Colbat

Iron

Manganese

Zinc

(Pho) (mg/ml/min)

Phy

Tsd

Dsr

(mg/kg)

(µg/ml/min)

Ìrèle

0–15

0.28d

0.08cd

1.93c

0.10a

2.0b

0.59f.

0.16a

9.41ab

1.60b

15–30

0.24f.

0.12a

2.02b

0.11a

1.71c

1.50de

0.16a

12.51a

1.41c

 

30–45

0.28de

0.10a-c

1.60 f.

0.20a

1.30a

1.01ef

o.16a

4.93bc

1.15e

Òkè-Àkò

0–15

0.38ab

0.06d

0.94i

0.09a

1.41e

3.32a

0.16b

4.51bc

1.11f.

15–30

0.26ef

0.11ab

1.70d

0.13a

1.71c

2.55b

0.16b

1.92c

0.85h

30–45

0.35c

0.11a

1.10h

0.11

1.30g

2.21bc

0.16c

1.21c

0.78i

Ìpaò

0–15

0.24 f.

0.09bc

2.17a

0.30a

1.33f.

1.92cd

0.16d

8.86ab

1.00g

15–30

0.40a

0.08cd

1.61 e

0.10a

1.50d

2.04bc

0.16d

5.12bc

1.17d

30–45

0.37bc

0.08cd

1.33g

0.11a

1.40e

2.45b

0.15c

11.13a

1.78a

  1. According to Tukey’s test, means that have the same letter in superscript onacolumn for the same parameterare notdifferent from oneanother (P < 0.05).