Table 2 Delta pH, CEC, exchangeable cations and base saturation of the original soils (N = > 3 replicates).

From: Terra Preta production from Ghanaian and Zambian soils using domestic wastes

Soil

Delta pH

CEC

(cmolc kg− 1)

Exchangeable cations (cmolc kg− 1)

Base saturation

(%)

Ca

Mg

Na

K

Adansam Lixisol

0.1

7.6#

4.6

1.2

0.3

1.2

-

Chitotokoloki Arenosol

2.6

4.5

0.9

0.2

0.1

0.1

27.1

Dompem Acrisol

-0.6

3.9#

1.9

1.0

0.2

0.0

-

Dzorwulu Vertisol

-0.2

16.4

6.6

1.5

0.4

0.4

53.9

GBC Acrisol

-0.4

12.8

9.1

1.3

0.7

0.5

90.3

Lukweta Acrisol

1.3

9.5

3.1

0.8

0.6

0.1

47.9

  1. # ECEC with no base saturation data.