2023/1/1/ · The 85 kg flower waste combined with 15 kg sawdust added in cow manure composting and after 60 days obtained 20 C/N and 36.39% TOC compost [79]. The hydrilla verticillate converted to stable compost (Solvita index 7.0–7.2) by batch mode rotary drum reactor composted 20 days and used for agricultural sector [80].