Spent mushroom substrate as compost?

zzzeeebbbrrraaa

zzzeeebbbrrraaa

Member
Has anyone used or heard of using spent mushroom substrate as compost in soil? I am also a mushroom grower so I regularly have spent substrate but I usually bury it the backyard and when it rains sometimes I get little surprises.

I am brand new to growing cannabis and I have taken the organic route so I got what I needed and mixed up some soil via the coots/Cornell mix. I have been reading a ton about soil and some gears started turning and it got me wondering about my old mushroom substrate. My substrate is always just straight coco with colonized rye berries.
 
conor c

conor c

Well-Known Member
zzzeeebbbrrraaa said:
Has anyone used or heard of using spent mushroom substrate as compost in soil? I am also a mushroom grower so I regularly have spent substrate but I usually bury it the backyard and when it rains sometimes I get little surprises.

I am brand new to growing cannabis and I have taken the organic route so I got what I needed and mixed up some soil via the coots/Cornell mix. I have been reading a ton about soil and some gears started turning and it got me wondering about my old mushroom substrate. My substrate is always just straight coco with colonized rye berries.
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You could add it to a mix i reckon it wouldnt be bad some use mushroom compost to grow in as well
 
MtRainDog

MtRainDog

Well-Known Member
As long as there’s nothing pathogenic in it should be fine. Everything in the substrate is organic/compostable
 
zzzeeebbbrrraaa

zzzeeebbbrrraaa

Member
I was able to find some info from Penn State that suggests that all I have to do is “weather” the substrate for 6 months and then it should be good to go. Looks like this summer I’ll be running a little experiment.
 
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