International Scholarly Research Notices / 2012 / Article / Tab 1

Research Article

Effects of Organic and Inorganic Materials on Soil Acidity and Phosphorus Availability in a Soil Incubation Study

Table 1

Initial surface (0–15 cm) soil properties.

Parameter BukuraKakamega

pH (H2O) (1 : 2.5) 4.80 5.10
Exchangeable acidity (cmolc kg−1) 0.88 0.35
Exchangeable Al (cmolc kg−1) 0.63 0.13
Ca 1.94 2.1
Mg 1.01 1.8
K 0.12 0.2
ECEC 3.95 4.85
Al saturation (%) 22 7.2
Organic C (%) 3.2 2.7
Total N (%) 0.3 0.3
C : N ratio 10.6 9.0
Total P (%) 0.04 0.03
Olsen P (mg kg−1) 5.6 2.5
P sorbed at (0.2 mg kg−1) 260 45

Texture (%)
Sand 52 54
Silt 18 28
Clay 30 18
Soil classification (FAO System)Orthic ferralsolFerralic cambisols

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