Use of Indigenous Cyanobacteria for Sustainable Improvement of Biogeochemical and Physical Fertility of Marginal Soils in Semiarid Tropics

This chapter describes a realistic and innovative approach for promoting a sustainable increase of overall soil fertility of marginal lands in representative semiarid environments in East and Southern Africa based on the application of indigenous selected strains of nitrogen-fixing cyanobacteria and releasing organic compounds such as exopolysaccharides (EPS) to improve soil fertility and structural stability.