Soil analysis was carried out to assess the physico-chemical qualities of the soils and identify the microbial presence in the study areas. Twelve composite soil samples were taken from 0 - 15cm (top soil) and 15 - 30cm (sub soil), homogenized and analysed in a laboratory. The soil pH values ranged from 5.5 (IGBS1) to 6.5 (IGBS7) in Igbotako, and 6.0 (ODSS11) to 6.7 (ODSS10) in Ode-Aye. The least soil porosity was observed at Igbotako Site 3 (IGBS3) with porosity of 9% and highest (40%) at Igbotako Site1 (IGBS1). Moisture content ranged from 5.8% (IGBS4) to 6.8% (IGBS1) in Igbotako and 5.9% (ODSS9) to 7.0% (ODSS11&ODSS12) in Ode-Aye. Soil Anions were moderate with sulphate (SO4-2 ) highest (47.1 mg/kg) at IGB S6. Soil Cations were low to moderate with potassium (K2+) highest (72.5 mg/kg) at IGB S1. Heavy Metals (Pb2+,Ni, As and Cd) were not detected in all samples from both locations. Zinc (Zn2+) concentration in the soils ranged between 0.99 – 3.5mg/kg, with the least value (0.99mg/kg) at IGB S2 and the highest value (3.5mg/kg) at ODS S8. Organic matter was found in small amounts. Samples showed presence of Total Heterotrophic Bacteria (THB), its count ranged from 1.0 x 102 cfu/ml to 4.0 x 106 cfu/ml, with other soil microbes present. E. coli was not detected in all samples across various sites. The soils in both locations are healthy ie., contain nutrients that support crop growth but will require extra enhancement through fertilizer application for increased cassava production.
Keywords: Physico-chemical, Heterotrophic Bacteria, Coliform, Cassava production