Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 23 Issue 1

Yam 7.40±0.18 159.94±10.40 0.72±0.05 1.24±0.06 Control 6.70±0.08 92.45±7.50 0.80±0.08 1.38±0.09 Min. 6.57 81.53 0.63 1.08 Max. 7.40 159.94 0.80 1.38 Overall mean 6.87 101.63 0.70 1.20 SD 0.10 9.36 0.03 0.09 CV 1.46 9.21 4.29 7.50 Source: Field Data, (2018) Table 3: Mean Total Elements Content of Soils Sample for Wet and Dry Seasons (mg/kg) Sampling Point As Cd Cu Mn Pb Zn Total metal load Wet Season Cassava 3.27±0.28 0.09±0.02 10.14±2.08 236.10±20.26 3.85±0.71 16.66±3.42 270.11 Maize 3.76±0.30 0.06±0.01 16.01±3.06 302.64±23.08 6.03±0.83 18.81±3.50 347.31 Plantain 3.96±0.29 0.07±0.01 20.26±3.24 743.44±40.16 8.06±0.92 25.64±3.70 801.43 Yam 3.93±0.25 0.12±0.03 9.08±1.02 468.91±31.20 4.26±0.74 30.01±4.08 516.31 Control 0.04 ND 0.06±0.01 5.12±0.90 0.03±0.00 1.64±0.96 6.89 Min. 0.04 ND 0.06 5.12 0.03 1.64 6.89 Max. 3.27 0.12 20.26 743.44 8.06 30.01 801.43 Overall mean 2.99 0.09 11.11 351.24 4.45 18.55 388.43 SD 0.25 0.01 1.85 24.62 0.75 3.70 CV 8.36 11.11 16.65 7.01 16.85 19.95 Dry Season Cassava 4.91±0.80 0.25±0.02 13.30±2.26 251.10±45.26 8.89±0.99 21.39±3.48 299.84 Maize 6.77±0.88 0.16±0.01 17.26±2.60 313.89±50.20 11.63±1.02 25.86±3.70 375.57 Plantain 7.38±0.93 0.23±0.02 23.27±3.55 806.73±80.60 13.16±1.23 34.15±3.91 884.92 Yam 5.46±0.85 0.46±0.03 11.50±2.20 498.75±58.25 10.67±1.20 36.12±3.90 562.96 Control 0.07±0.01 ND 0.18±0.03 8.95±2.19 0.07±0.02 1.96±0.63 11.23 Min. 0.07 ND 0.18 8.95 0.07 1.96 11.23 Max. 7.38 0.46 23.27 806.73 13.16 36.12 884.92 Overall mean 4.92 0.28 13.10 375.88 8.88 23.9 426.96 SD 0.58 0.03 2.58 60.63 0.97 3.76 CV 11.79 10.71 19.69 16.13 10.92 15.73 FAO/WHO Guideline (2011) 30 3 140 2000 300 300 Source: Field Survey, (2018) Table 4: Mean Heavy Elements Staple Crops Sample of Odu’a Farm Establishment for Wet and Dry Seasons (mg/kg) Foodstuff As Cd Cu Mn Pb Zn Total metal load Wet Season Cassava 1.83±0.06 0.03±0.00 0.06±0.01 10.30±2.21 0.08±0.01 2.73±0.10 15.03 Maize 1.98±0.07 0.04±0.01 0.14±0.01 15.26±2.36 0.05±0.00 8.95±1.08 26.42 Plantain 2.03±0.09 0.05±0.01 0.26±0.02 21.70±2.50 0.09±0.01 7.17±1.03 31.30 Yam 2.16±0.10 0.02±0.00 0.08±0.01 12.32±2.28 0.04±0.00 10.54±1.23 25.16 Cropland Bioaccumulation Risks of Potentially Toxic Elements in Soil of Some Designated Foodstuffs Cultivated in Odu’a Farm Establishment, Aawe, Oyo State, Nigeria © 2023 Global Journals 1 Year 2023 16 Global Journal of Science Frontier Research Volume XXIII Issue ersion I VI ( )D