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Table 8 SOM, available N, P2O5, K2O, and micronutrients content of the CSB soils

From: Characterizing soils and the enduring nature of land uses around the Lake Chamo Basin in South-West Ethiopia

Pedon Depth (cm) SOM (%) Av. N P2O5 K2O Cu Fe Mn Zn
(mg/kg)
P-1 0–34 1.82 1164.24 30.01 166.58 0.45 9.62 1.28 0.91
34–200 0.36 166.32 27.83 54.66 0.27 8.15 1.46 0.40
P-2 0–90 2.28 1175.02 161.53 228.54 0.81 21.38 2.58 0.61
90–97
97–200 0.82 508.20 160.79 164.36 2.03 25.40 10.77 0.64
P-3 0–80 1.62 988.68 48.29 257.87 0.47 16.95 2.71 0.82
80–85
85–200 1.22 659.12 48.47 183.09 1.03 23.25 2.26 0.78
P-4 0–35 4.32 1995.84 174.59 262.88 2.50 33.08 11.21 0.90
35–200 0.72 335.72 58.00 154.99 0.43 11.68 0.92 0.44
P-5 0–40 2.82 1647.80 146.31 242.40 0.66 12.43 3.16 0.66
40–200 0.54 335.72 40.75 194.39 0.86 12.99 2.12 0.58
P-6 0–50 1.14 329.56 153.16 110.88 1.11 11.14 5.33 0.81
50–58
58–200 0.62 166.32 153.13 78.08 0.72 13.04 2.28 1.12
P-7 0–46 2.48 1330.56 148.41 249.87 1.12 10.10 11.57 0.57
46–140 2.40 671.44 145.74 485.98 0.72 8.72 7.27 0.67
P-8 0–30 2.38 1496.88 139.68 471.11 1.22 11.24 8.75 0.62
30–120 0.56 329.56 33.51 90.25 0.79 10.49 3.97 0.46
120–200 0.24 161.70 21.04 106.28 0.54 11.57 1.95 0.25
P-9 0–50 2.16 1207.36 156.35 383.29 1.19 9.97 4.91 0.71
50–54
54–200 0.54 332.64 154.41 88.50 0.58 7.50 2.73 0.40
P-10 0–30 0.84 329.56 52.07 252.71 0.71 12.76 3.88 0.60
30–80 0.46 169.40 41.12 140.50 0.92 15.27 3.62 0.57
80–200 0.34 167.86 41.12 288.96 0.46 10.36 1.75 0.51
P-11 0–46 1.88 1164.24 38.74 304.53 0.69 13.85 9.20 0.85
46–115 0.62 329.56 32.25 195.98 0.21 5.81 1.72 0.53
115–200 0.30 160.16 23.29 255.65 0.28 10.83 2.11 0.42
P-12 0–17 8.10 5155.92 266.62 242.06 1.94 63.56 19.32 4.10
17–70 1.16 665.28 105.85 476.31 0.98 10.92 0.91 0.50
70–200 0.42 166.32 19.82 78.08 0.85 11.24 1.64 0.51
  1. OM% = %TN × 20`; OC = OM × 0.57 and/or %OC ×1.724 = %OM. SOC stock (C (t ha−1)) is calculated from SOC concentration (C (%)) by: C(tha−1) = C(%) × ρ × D where D is soil depth (cm) and ρ is soil bulk density (g cm3); similarly, using these parameters, it was calculated as mentioned (http://www.dpi.nsw.gov.au/agriculture)