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Applicability of Spent Mushroom Media as Horticultural Nursery Media  

Lee, Chan-Jung (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
Cheong, Jong-Chun (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
Jhune, Chang-Sung (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
Kim, Seung-Hwan (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.42, no.2, 2009 , pp. 117-122 More about this Journal
Abstract
This study was carried out to investigate applicability of Spent Mushroom Media(SMM) as horticultural nursery media. After the mushroom has been harvested, the SMM contains a lot of organic material, different microorganism and high density of mushroom hypha. The pH, phosphate and exchangeable cation concentrations of SMM of Flammulina velutipes were higher than those of any other treatment. The CEC and $NH_4-N$ were the highest in SMM of bottle-cultivated oyster mushroom (Pleurotus ostreatus). Bacteria and fungi showed the highest density in SMM of Flammulina velutipes. Most dominant bacteria were Microbacterium sp., Rhodococcus sp. and Agrobacterium sp. in SMM of Flammulina velutipes and Bacillus sp., Pseudomonas sp., Curtobacterium sp. and Microbacterium sp. in that of Pleurotus eryngii. The SMM contained high density of mushroom hypha that inhibited germination of seed and growth of young seedlings. Therefore, composting process of the SMM is indispensible to decline of vitality of mushroom hypha. The SMM of Flammulina velutipes with 0~30% vermiculite showed high germination rate in red pepper and chinese cabbage seeds. SMM of Pleurotus eryngii with 20% vermiculite showed 100% germination rate in red pepper seeds, but chinese cabbage seeds nearly failed to germinate with 30% vermiculite. The growth of red pepper was increased according to increasing mixture ratio of vermiculite. Accordingly, we concluded that SMM of Flammulina velutipes contained 0~30% of vermiculite can be used to horticultural growth bed for red pepper.
Keywords
Spent mushroom media; Flammulina velutipes; Pleurotus eryngii; Pleurotus ostreatus; Nusery bed;
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