Phosphorus Sorption Characteristics of Luvisols and Nitisols in North Ethiopian Soils

Table 1

Selected physicochemical properties of the soils in the study area.

Soil type	Depth (cm)	Particle size distribution (%)			Soil texture	pH (H2O)	Av.P (mg/Kg)	OC (%)	Ex.Al (cmolc kg^−1)	EC (dSm^−1)	CEC (cmolc/Kg soil)	Exch. base (cmolc Kg^−1)
		Sand	Clay	Silt								Ca^2+	Mg^2+	K^1+	Na^1+
Luvisols	0–30	6.00	20.00	74.00	Clay	5.48	1.84	1.56	0.41	0.024	50.10	25.67	9.56	0.44	0.51
	30–60	7.00	17.00	76.00	Clay	5.32	1.08	1.45	0.43	0.024	48.20	26.10	10.30	0.39	0.54
Nitisols	0–30	4.00	12.00	84.00	Clay	5.04	1.46	1.32	1.01	0.020	55.30	16.20	17.60	0.77	0.52
	30–60	6.00	14.00	80.00	Clay	5.03	1.17	1.22	0.92	0.026	52.10	22.00	6.60	0.45	0.55
Mean value		5.75	15.75	78.50		5.22	1.39	1.39