SEARCH Articles Figures Tables Amended soils elemental composition Amended soils structure Amendments Biodegradation sludge-amended soils Fulvic acids amended soils Humic acids amended soils Humic substances amended soils Humification amended soils Metals amended soil reactivity Minerals amended soil mineralization Nuclear magnetic resonance amended soils Sewage sludge amended soils Sludge-amended soil, fractionation Sludge-amended soils Soil amendments Soil amendments Soil organic carbon amended soils Soil solarization organic amendments Waste-amended soil