Work out vermicompost yield instantly with clear inputs, formula shown and shareable results.
Vermicomposting converts 40-50% of feedstock mass into vermicompost, the rest lost as carbon dioxide and moisture. Worms consume roughly their own body weight in feed each day, so worm biomass required is the daily feed rate. Worm biomass typically doubles every 60-90 days under good conditions.
Vermicompost yield
Yield = feedstock x conversion efficiency
Worm requirement
Worm biomass = daily feed rate x stocking rate
Fresh material heats up and generates ammonia, both of which kill worms. Two to three weeks of thermophilic pre-composting stabilises it and destroys pathogens before the worms are introduced.
Moisture 70-80%, temperature 15-25 C, pH 6.5-7.5 and good aeration. Outside those ranges feeding slows sharply or the population dies.