Table 1 Properties of the original soils used (N = > 3 replicates).

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

Original soil

Bulk density

Sand

Silt

Clay

Texture

Soil pH

Total C

Av. P

(g cm− 3)

(%)

(Water)

(g kg− 1)

(mg kg− 1)

Adansam Lixisol

1.4

91

2

7

Sand

6.4

9.9

19.2

Chitotokoloki Arenosol

1.5

92

2

6

Sand

6.5

0.5

16.5

Dompem Acrisol

1.2

74

16

11

Loamy sand

4.6

16.9

4.2

Dzorwulu Vertisol

2.2

42

12

46

Clay

7.6

8.0

162.7

GBC Acrisol

1.6

74

7

19

Sandy loam

7.2

12.9

200.3

Lukweta Acrisol

1.3

81

10

9

Loamy sand

6.7

1.9

19.4