id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajfst-2233	Omokaro, Godspower Oke; Ojujoh, Mary Ganpatei; Michael, Ikioukenigha; Nafula, Zipporah Simiyu	Heavy Metal Concentration of Okra (Abelmoschus Esculentus) Grown on Dumpsite Soil in Benin City, Nigeria	2023	10	.pdf	application/pdf	7689	424	59	Sand (g/kg) 859 886 852 868 Silt (g/kg) 75 50 80 78 Clay (g/kg) 66 64 68 54 Where N/D: Not Detected Table 2: Physical and Chemical Properties of Soils on Dumpsites after Planting After Planting Market Farmland Residential Faculties pH 5.68 5.42 5.80 5.36 T.O.C (g/kg) 14.6 14.8 15.9 18.6 Total N (g/kg) 0.83 0.80 0.85 0.90 Av.P (mg/kg) 9.54 10.8 12.1 8.70 Fe (mg/kg) 88.2 45.8 89.4 72.6 Zn (mg/kg) 23.4 20.1 25.3 22.5 Mn (mg/kg) 18.9 15.2 19.5 17.2 Sand (g/kg) 878 889 880 879 Silt (g/kg) 64 48 66 65 Clay (g/kg) 58 63 54 52 Where N/D: Not Detected Table 3: Heavy Metal Concentration in Soil Before and After Planting Locations Cu (mg/kg) Pb (mg/kg) Cd (mg/kg) Cr (mg/kg) Before planting Market 34.5 1.66 0.44 0.05 Farmland 30.9 0.67 0.12 0.09 Residential 35.2 1.15 0.45 0.11 Faculties 33.7 1.00 0.14 0.14 After Planting Market 28.8 1.05 0.26 0.03 Farmland 24.6 0.51 0.10 0.04 Residential 30.2 0.83 0.22 0.09 Faculties 26.3 0.80 0.20 0.10 Note: The maximum allowable limit (M.A.L) for heavy metals concentration (mg/kg) use in Nigeria soils as set by the Department of Petroleum Resources (DPR) in 1991 for some heavy metals includes: Soil samples were collected before and after planting and analyzed for pH, total nitrogen (N), total organic carbon (C), phosphorus (P), iron (Fe), zinc (Zn), manganese (Mn), and heavy metal concentrations (Cu, Pb, Cd, and Cr).	cache/ajfst-2233.pdf	txt/ajfst-2233.txt