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Table 4 Exchangeable cations and exchange properties

From: Chemical forms of phosphorous and physicochemical properties of acid soils of Cheha and Dinsho districts, southern highlands of Ethiopia

Soil Exchangeable cations and CEC (cmolckg−1) Percent saturation (%) K/Mg
Ca Mg K Na TEB exAc exAl CEC ECEC PAcS PAlS PBS Ratio
SC1 4.21 0.98 0.20 0.04 5.43 2.61 1.54 19.15 10.56 13.63 8.04 28.36 0.20
SC2 8.45 2.23 0.26 0.09 11.03 2.18 0.82 23.88 17.77 9.13 3.43 46.19 0.12
SC3 4.91 1.11 0.25 0.09 6.36 2.38 1.29 20.88 11.12 11.40 6.18 30.46 0.23
SC4 7.86 1.69 0.28 0.11 9.96 1.57 0.35 26.98 14.09 5.82 1.30 36.92 0.17
SC5 8.95 2.38 0.30 0.11 11.74 1.09 0.42 22.81 15.39 4.78 1.84 51.47 0.13
SC6 6.40 1.42 0.29 0.12 8.25 2.11 0.43 29.54 12.93 7.14 1.46 27.93 0.20
SC7 9.42 2.05 0.32 0.16 11.92 2.29 0.49 25.03 16.77 9.15 1.96 47.62 0.16
SD1 13.30 2.87 0.34 0.25 16.76 0.59 0.28 33.70 18.73 1.75 0.83 49.73 0.12
SD2 9.29 2.14 0.32 0.21 11.97 0.87 0.32 29.80 14.44 2.92 1.07 40.17 0.15
SD3 14.78 4.39 0.41 0.38 19.96 0.62 0.24 34.03 25.95 1.82 0.71 58.65 0.09
SD4 10.87 3.52 0.34 0.20 14.93 0.56 0.22 29.14 17.87 1.92 0.75 51.24 0.10
SD5 12.90 3.77 0.37 0.23 17.27 0.59 0.21 30.66 21.25 1.92 0.68 56.33 0.10
Mean 9.28 2.38 0.31 0.17 12.13 1.46 0.55 27.13 16.41 5.95 2.35 43.75 0.13
  1. TEB total exchangeable bases, exAc exchangeable acidity, exAl exchangeable Aluminum, CEC cation exchange capacity of soil, ECEC Effective cation exchange capacity, PAcS percent acid saturation, PAlS percent aluminium saturation, PBS percent base saturation