Abstract:The changing of soil biological characteristics due to the addition of raw and composted sewage sludge (at 0, 1.5 and 3.0%) were evaluated during a 165-day incubation experiment. Generally, increasing the addition rate of sewage sludge and its compost up to 3%, total organic C content (TOC), cumulative organic C decomposition (COCD), biomass C and basal respiration in soil were significantly increased. The increase in biomass C and basal respiration were significantly higher in sewage sludge-treated soil as co… Show more
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