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Lead (Pb) and Zinc (Zn) were mined in Kabwe from 1904 to 1994, generating large quantities of solid mine waste. Among the solid wastes, were tailings from the leach plant which are now an environmental concern because of their high contents of Pb, Zn and other potentially toxic metals. To prevent...

Biochar is an organic residue combusted under low oxygen conditions, resulting in a porous, low-density carbon-rich material. Biochar has the potential to reduce pollutant mobility when used as an organic soil amendment. Until recently, Biochars’ potential has not been extensively evaluated for...

Organic amendments have been known to improve soil physical and chemical properties in sub-Saharan Africa. However, research information on how organic amendments affect aggregate stability and the degree of their effects in comparison to others is indaquate in Zambia. The study was therefore...

Soil acidity is a common constraint to crop production in Zambia. Agricultural lime is applied in dry powder form to acid soils to neutralize acidity. New liming materials in aqueous suspension form have recently been introduced on the Zambian market and their effectiveness in neutralizing...

Common bean and groundnut are an important source of protein, fat, carbohydrates, vitamins and minerals for both humans and livestock. These legumes are produced mostly by smallholder farmers whose current yields are far below the potential yield of 2 t/ha for both legumes due to biological...