Abstract
A study, comprising a survey, greenhouse and field experiments was conducted to examine the effect of Cassava Processing Effluent (CPE) on soil chemical properties, maize growth performances and grain yield. In the survey, soil samples were taken (0-15 and 15 – 30cm) of CPE contaminated and non contaminated areas of rural cassava processing depots. Serial dilutions of CPE collected from these depots (80, 60, 40, 20, and 0% (water only) were made and used to water potted maize plants for 30 days and field-sown maize for 120 days. The survey showed that soil pH, exchangeable potassium (K) and sodium (Na) were 4, 40 and 53% respectively, greater in uncontaminated than in contaminated soil. Calcium (Ca), Magnesium (Mg), available phosphorus (P) and organic matter increased significantly (p Keywords: Cassava processing effluent, Soil properties, Hydrogen cyanide, growth, yield, maize, Southeastern Nigeria.
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