Biochar and Sulphur Enriched Digestate: Utilization of Agriculture Associated Waste Products for Improved Soil Carbon and Nitrogen Content, Microbial Activity, and Plant Growth

A number of agriculture residues may be used either directly or after suitable treatment as amendments to improve soil quality. Such materials include biochar made residues, digestate elemental sulphur obtained from biogas desulphurisation. The joint use these via pre-incubation more advantageous than only mixing prior the application soil. In this study, digestates were mixed with and incubated for 6 weeks before in a short-term pot experiment lettuce (Lactuca sativa). following treatments tested: control digestate, + biochar, sulphur, sulphur. biochar-enriched significantly increased microbial biomass, C:N, fresh above ground dry root biomass. Elemental sulphur-enriched caused highest arylsulfatase phosphatase, urease, biomass Amendment led total carbon, ?-glucosidase, C:N ratio, It mitigated adverse effect on respiration. Properties apparently affected by pre-incubation. This approach fertilizer production contribute sustainable farming.