Is the Cultivation of <i>Dictyophora indusiata</i> with Grass-Based Substrates an Efficacious and Sustainable Approach for Enhancing the Understory Soil Environment?

Is the Cultivation of <i>Dictyophora indusiata</i> with Grass-Based Substrates an Efficacious and Sustainable Approach for Enhancing the Understory Soil Environment?

The integration of forestry and agriculture has promoted edible fungi cultivation in forest understory spaces. However, the impact of spent mushroom substrates on forest soils remains unclear. This study explored the use of seafood mushroom spent substrates (SMS) and grass substrates to cultivate &l...

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Main Authors: Jing Li, Fengju Jiang, Xiaoyue Di, Qi Lai, Dongwei Feng, Yi Zeng, Yufang Lei, Yijia Yin, Biaosheng Lin, Xiuling He, Penghu Liu, Zhanxi Lin, Xiongjie Lin, Dongmei Lin
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Agriculture
Subjects:
bamboo mushroom
<i>Cenchrus fungigraminus</i>
soil organic acids
spent mushroom substrates
understory environment
Online Access:https://www.mdpi.com/2077-0472/15/14/1533
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Summary:The integration of forestry and agriculture has promoted edible fungi cultivation in forest understory spaces. However, the impact of spent mushroom substrates on forest soils remains unclear. This study explored the use of seafood mushroom spent substrates (SMS) and grass substrates to cultivate <i>Dictyophora indusiata</i>. After cultivation, soil pH stabilized, organic carbon increased by 34.02–62.24%, total nitrogen rose 1.1–1.9-fold, while soil catalase activity increased by 43.78–100.41% and laccase activity surged 3.3–11.2-fold. The 49% <i>Cenchrus fungigraminus</i> and 49% SMS treatment yielded the highest 4-coumaric acid levels in the soil, while all treatments reduced maslinic and pantothenic acid content. SMS as padding material with <i>C. fungigraminus</i> enhanced soil bacterial diversity in the first and following years. Environmental factors and organic acids influenced the recruitment of genus of Latescibacterota, <i>Acidothermus</i>, <i>Rokubacteriales</i>, <i>Candidatus solibacter</i>, and <i>Bacillus</i>, altering organic acid composition. In conclusion, cultivating <i>D. indusiata</i> understory enhanced environmental characteristics, microbial dynamics, and organic acid profiles in forests’ soil in short time.
ISSN:2077-0472

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