Anyanwu, Ihuoma N Influence of biochar aged in acidic soil on ecosystem engineers and two tropical agricultural plants. [electronic resource] - Ecotoxicology and environmental safety May 2018 - 116-126 p. digital Publication Type: Journal Article ISSN: 1090-2414 Standard No.: 10.1016/j.ecoenv.2018.02.005 doi Subjects--Topical Terms: AnimalsBiological AvailabilityBiomassCharcoal--analysisEcosystemMicrobiota--drug effectsOligochaeta--drug effectsOryza--drug effectsSoil--chemistrySoil MicrobiologySoil Pollutants--analysisSolanum--drug effectsTime FactorsTropical Climate