2021.09.30 EASYJET Jr.
Composting test of waste mushroom bed (Hokken style) (Introduced to: Akita Prefecture, Mushroom Production Association)
A composting test was done using a waste mushroom bed for top surface cultivation (high moisture content).
This data is from a composting test using high moisture waste mushroom beds.
In Hokken-style top surface cultivation, the fungus bed is always submerged in water, so the discharged waste mushroom bed also shows high moisture content of about 70%.
In that state, the fermentation temperature does not rise so easily, so we promoted aerobic fermentation by mixing in chicken manure and aerating it more, which made it possible to compost in a short period of time.
We did the test by mixing the ingredients and putting them in a flexible container bag, then aerating them with EasyJet Jr.
The fermentation temperature changed as shown in this graph.
The test was done outdoors when the air temperature is low, but in actual operation, fermentation temperature would rise further if composting was done in a farm house.
Moisture content dropped to about 56% in the compost mixed with chicken manure
The initial moisture content is high, so these are not bad results for composting in bags without turnover. In order to further reduce moisture content, the finished compost should be spread thinly.
The germination rate, the result was 90% or higher both with and without chicken manure, but root length was remarkably longer with the chicken manure mixture.
Mushroom compost has no odor if fermented properly, so it is easy to handle, but also highly prized, so it can be a promising source of revenue.
We also lend simple fermenters (EasyJet Jr.) for trial use, so feel free to contact us if you are interested.