. 2005 Aug 14;2(2):272–285. doi: 10.3390/ijerph2005020011

Table 1.

Selected physico-chemical properties of soils

Texture Analysis (USDA)	Sand Clay Loam	Sandy Loam
Clay (< 2 μm) (%)	31	5
Silt (< 50 - 2μm) (%)	24	23
Sand (2000 - 50μm) (%)	45	72
pH (water, ratio 1:2.5)	4.80	7.20
pH (0.01M CaCl₂, ratio 1:2.5)	4.16	6.75
C_org. (%)	3.01	1.69
N_tot. (%)	0.17	0.09
P (mg P₂O₅/100g dry weight)	0.11	57
Cation Exchange Capacity (Meq/100g dry weight)	9.76	8.00
Maximum Water Holding Capacity (MWHC) (%)	54.4	34.4
Density (g/ml)	1.35	2.50
Origin	Yaounde	Monheim
	Minkoameyos	Laacher Hof Axxa
	Cameroon	Germany
Designation	Cameroonian soil (Tropical soil)	German soil (Temperate Soil)