US Patent 8430599 Methods and composition for improving soil quality

A soil-amendment product for preparing a damaged or degraded soil ecosystem to establish a self-sustaining floral/vegetative rhizosphere contains a mixture of composted organic biomass, fiber, charcoal, and small amounts of inoculants to promote the growth of beneficial microorganisms including mycorrhizal fungi and nitrogen-fixing bacteria. Embodiments also contain a water-holding agent such as a starch-based polymer that is effective to prevent water from flowing downhill or seeping away from the surface. Methods of application and other uses for the soil-amendment product are also described and claimed.