Role of psychrotrophic fungal strains in accelerating and enhancing the maturity of pig manure composting under low-temperature conditions

This study investigated the effects of applying psychrotrophic cellulose-degrading fungi on cellulase production, fungal community structure, and maturity pig manure (PM) compost under low-temperature conditions. Three strains were isolated identified, after cold-active production conditions optimized, they inoculated into PM compost. While control (CK) temperature failed to reach thermophilic stage, reached it within 3 days was maintained for up 17 days. Fungal inoculants improved structure at end composting, as suggested by network analysis. Principal component analysis revealed that germination index (GI), total phosphorus (TP), potassium (TK), nitrogen (TN) most influential physicochemical parameters affecting maturity. The results products reflected suitability a fertilizer. indicated newly identified positively impacted composting low temperatures.