Skip to main content

Table 1 Statistical values of selected soil acidity and fertility parameters (n = 132)

From: Spatial prediction of soil acidity and nutrients for site-specific soil management in Bedele district, Southwestern Ethiopia

Variables Statistics
Min Max Mean SD CV (%) Skewness Kurtosis
Clay (%) 14 72 44 11.78 26.77 0.24 2.49
Silt (%) 8 34 20 5.04 25.20 − 0.14 3.11
Sand (%) 10 68 36 12.85 35.69 − 0.19 2.36
pH (H2O) 4.5 6.8 5.3 0.53 10 0.67 2.83
EA (cmolc kg−1) 0.1 5.1 1 0.39 39 1.04 2.96
OC (%) 0.3 5.6 3.3 1.03 31.21 − 0.58 3.20
TN (%) 0.03 0.48 0.28 0.09 32.14 − 0.57 3.18
Av. P (mg kg−1) 0.8 38.6 6.2 2.80 45.16 1.07 3.78
Ex. Ca (cmolc kg−1) 0.3 3.2 1 0.54 54 0.96 4.14
Ex. Mg (cmolc kg−1) 0.2 2.2 0.9 0.37 41.11 0.76 3.77
Ex. K (cmolc kg−1) 0.3 4.5 1.5 0.74 49.33 0.59 3.65
Ex. Na (cmolc kg−1) 0 1.5 0.1 0.03 30 0.58 2.64
CEC (cmolc kg−1) 2.6 35.3 14.2 5.42 38.17 0.63 4.42
Ca:Mg 0.3 3.4 1.3 0.43 33.08 0.76 2.68
K:Mg 0.2 10.9 2.1 1.21 57.62 1.00 3.72
  1. Min minimum, Max maximum, SD standard deviation, CV coefficient of variation, EA exchangeable acidity, OC organic carbon, TN total nitrogen, Av. P available phosphorus, Ex. Ca exchangeable calcium, Ex. Mg exchangeable magnesium, Ex. K exchangeable potassium, Ex. Na exchangeable Na, CEC cation exchange capacity, Ca:Mg calcium to magnesium ratio, K:Mg potassium to magnesium ratio