Compost and Mulch
Worm Bin Feed Rate Calculator
Use Worm Bin Feed Rate when you need to estimate worm-bin feed from worm biomass and a feeding fraction. It calculates daily feed amount from the measurements shown below.
Enter values for daily feed amount
Worm Bin Feed Rate needs worm biomass and daily feed fraction from one case.
Purpose of the daily feed amount estimate
Worm Bin Feed Rate focuses on Daily feed amount and combines Worm biomass and Daily feed fraction.
Use daily feed amount to estimate worm-bin feed from worm biomass and a feeding fraction, then inspect worm biomass in the field.
Worm biomass and the other inputs
Worm Bin Feed Rate uses Worm biomass and Daily feed fraction. The Worm Bin Feed Rate entries share one scope.
- Worm biomass
- Default in Worm Bin Feed Rate: 3.5 lb.
- Daily feed fraction
- Default in Worm Bin Feed Rate: 0.35 lb/lb-day.
Daily feed amount: condition to verify
Feed only as quickly as material is consumed.
A practical check for worm biomass
Record moisture condition and turning history because both can change the observed volume or mass. Vermicompost yield? See Vermicompost Yield Calculator.
Formula for daily feed amount
Worm Bin Feed Rate multiplies factors from Worm biomass and Daily feed fraction to produce daily feed amount.
For the prefilled measurements—worm biomass at 3.5 lb and daily feed fraction at 0.35 lb/lb-day—the calculated answer is 1.22 lb/day.
Reading daily feed amount
Use Daily feed amount to estimate worm-bin feed from worm biomass and a feeding fraction. Keep the Worm Bin Feed Rate inputs beside the output.
After calculating daily feed amount
Retain a dated Worm Bin Feed Rate worksheet containing Worm biomass and Daily feed fraction.
Save Daily feed amount before adding a reserve, purchase rounding, or another practical adjustment.
Document the final field outcome and compare it with daily feed amount without changing the first record.
What changes when worm biomass changes
A ten-percent test change in Worm biomass replaces 3.5 lb with 3.85 lb. Under the remaining sample values, daily feed amount changes from 1.22 lb/day to 1.35 lb/day.
Only worm biomass changes in this Worm Bin Feed Rate example, making its numerical effect visible.
Keep the original daily feed amount and the test result as separate scenarios.
Clarifying the Worm Bin Feed Rate result
Does Worm Bin Feed Rate account for moisture and settling?
Only when moisture or settling appears among its inputs. Interpret daily feed amount alongside feedstock condition, particle size, compaction, and decomposition.