2021/7/15/ · The composting experiments were carried out using trough composting system at Senhe industry, Hangzhou, Zhejiang, China (120 18′E , 30 25′N). Experiment lasted for a total of 90 days from 17th May to 15th August in 2018. Pig manure (pH 7.04, TN 38.31 g/Kg