Environment & Mycoremediation

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Study

Spent Mushroom Substrate Helps Seedlings Grow

Spent Mushroom Substrate Helps Seedlings Grow

Split gill mushroom, Oyster mushroom, Abalone mushroom, Reishi, Black jelly mushroom

What they found

Leftover mushroom growing material improved early growth of rice, maize and wheatgrass seedlings, sometimes matching commercial compost.

Leftover mushroom growing material improved early growth of rice, maize and wheatgrass seedlings, sometimes matching commercial compost.

How solid is it?

Field study

Field study

Field/ecology

Field/ecology

Evidence ladder: Lab dish → Animal → Early human → Strong human. Reviews summarize earlier research.

At a glance

Latin name

Schizophyllum commune, Pleurotus ostreatus, Pleurotus cystidiosus, Ganoderma lucidum, Auricularia polytricha

Schizophyllum commune, Pleurotus ostreatus, Pleurotus cystidiosus, Ganoderma lucidum, Auricularia polytricha

Published in

Compost Science & Utilization

Compost Science & Utilization

Covered in Shroom Scan

Section

ECOLOGY & CONSERVATION

ECOLOGY & CONSERVATION

As it ran in Shroom Scan

Waste Reused

Waste Reused

Spent mushroom substrate from split-gill mushroom (Schizophyllum commune), oyster mushroom (Pleurotus ostreatus), abalone mushroom (Pleurotus cystidiosus), reishi mushroom (Ganoderma lucidum), and black jelly mushroom (Auricularia polytricha) improved early growth of rice, maize, and wheatgrass seedlings when used as a soil amendment. Split-gill and reishi substrates significantly boosted rice seedling growth, while dried oyster and black jelly substrates improved early maize growth, and fresh split-gill substrate matched commercial compost performance in wheatgrass. Instead of landfill waste, leftover mushroom growing material can be repurposed to support crop establishment and reduce reliance on conventional compost inputs.

Spent mushroom substrate from split-gill mushroom (Schizophyllum commune), oyster mushroom (Pleurotus ostreatus), abalone mushroom (Pleurotus cystidiosus), reishi mushroom (Ganoderma lucidum), and black jelly mushroom (Auricularia polytricha) improved early growth of rice, maize, and wheatgrass seedlings when used as a soil amendment. Split-gill and reishi substrates significantly boosted rice seedling growth, while dried oyster and black jelly substrates improved early maize growth, and fresh split-gill substrate matched commercial compost performance in wheatgrass. Instead of landfill waste, leftover mushroom growing material can be repurposed to support crop establishment and reduce reliance on conventional compost inputs.

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