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Table 1 Summary of soil physicochemical properties

From: Assessment of organochlorine pesticide residues in soils and drinking water sources from cocoa farms in Ghana

Sites Nkrankwanta (1) Diabaa (2) Krakrom (3) Kwakuanya (4) Total mean
Parameters Range Mean ± SD Range Mean ± SD Range Mean ± SD Range Mean ± SD Mean ± SD
pH 7.34–7.80 7.56 ± 0.23 7.73–7.96 7.88 ± 0.13 8.46–8.52 8.49 ± 0.03 8.21–8.39 8.34 ± 0.04 8.07 ± 0.33
Electrical conductivity (µS/cm) 138.0–296.0 210.0 ± 79.8 163.0–282.0 242.0 ± 68.4 183.0–239.0 203.0 ± 30.9 156–283 204.0 ± 68.9 214.8 ± 14.3
Organic carbon (%) 0.89–1.95 1.38 ± 0.53 5.67–5.99 5.83 ± 0.16 5.78–6.14 5.94 ± 0.18 5.78–6.46 6.12 ± 0.35 4.83 ± 1.78
Organic matter (%) 1.54–3.36 2.38 ± 0.92 9.78–10.3 10.0 ± 0.28 9.96–10.6 10.3 ± 0.31 9.96–11.1 10.6 ± 0.60 8.32 ± 3.07
Available potassium (mg/kg) 0.39–0.95 0.59 ± 0.30 0.45–0.50 0.48 ± 0.03 0.36–0.89 0.64 ± 0.27 0.21–0.50 0.35 ± 0.15 0.52 ± 0.10
Total nitrogen (%) 1.61–2.63 2.10 ± 0.51 1.74–2.46 2.13 ± 0.36 1.57–2.10 1.87 ± 0.27 1.51–1.79 1.64 ± 0.14 1.94 ± 0.18
Phosphorus (mg/kg) 0.55–0.70 0.64 ± 0.08 0.50–0.91 0.71 ± 0.21 0.55–0.69 0.63 ± 0.07 2.40–2.50 2.47 ± 0.06 1.11 ± 0.70
NH4 + (mg/l) 23.1–46.9 38.9 ± 13.7 30.1–42.0 34.8 ± 6.35 43.4–48.3 45.0 ± 2.83 35.0–49.0 42.9 ± 7.18 40.4 ± 3.49
NO3 (mg/l) 23.8–29.4 25.7 ± 3.23 33.6–45.5 40.1 ± 6.04 38.5–44.1 40.6 ± 3.05 28.0–30.1 28.9 ± 1.07 33.8 ± 5.93
Exchangeable potassium (cmol/kg) 0.20–0.26 0.24 ± 0.03 0.27–0.51 0.43 ± 0.14 0.38–0.51 0.60 ± 0.27 0.21–1.15 0.67 ± 0.47 0.49 ± 0.15
Sand (%) 50.1–83.3 65.9 ± 16.7 59.7–80.5 67.8 ± 11.0 59.5–60.4 59.8 ± 0.47 57.0–69.0 63.3 ± 6.04 64.2 ± 2.68
Clay (%) 12.5–35.0 24.2 ± 11.3 7.50–15.0 11.7 ± 3.81 12.5–17.5 15.8 ± 2.89 12.5–12.5 12.5 ± 0.00 16.1 ± 4.43
Silt (%) 4.20–14.9 9.96 ± 5.41 12.0–25.3 20.5 ± 7.35 22.1–28.0 24.3 ± 3.25 18.5–30.5 24.2 ± 6.04 19.7 ± 5.23
Texture   Sandy-clay-loam   Sandy-loam   Sandy-loam   Sandy-loam  
  1. SD standard deviation