PROBLEM TO BE SOLVED: To provide a method for producing a culture medium material for mushroom cultivation by which mushroom is producible at a low cost by further decreasing steping cost for bad smell control or the like caused by decay of a mushroom waste culture medium, using a fermentation technique, and appropriately raising mushroom.SOLUTION: The method for producing the culture medium material for mushroom cultivation includes a useful bacterium inoculating step of charging a large amount of useful bacteria acting as aerobic bacteria, relative to the presence of various bacteria, before various bacteria reproduce in the mushroom waste culture medium, an initial fermenting drying step of accumulating the mushroom waste culture medium into which the useful bacteria are charged, and fermenting under an air open environment where drying progresses, for a period for rapidly progressing initial fermentation, and a drying material charging step of charging an organic drying material with a dryness degree higher than that of a fermentation material into the fermentation material produced from the mushroom waste culture medium, after passing at least the initial fermenting drying step, and mixing the product so as to increase at a stretch the dryness degree of the fermentation material, and obtain the culture medium material for mushroom cultivation.COPYRIGHT: (C)2013,JPO&INPIT【課題】発酵技術を利用してきのこ廃培地の腐敗による悪臭防止などの処理コストをより低減させて安価に生産でき、且つ適切にきのこを育成できるきのこ栽培用培地資材の生産方法を提供すること。【解決手段】前記きのこ廃培地で雑菌が繁殖する前に、好気性菌として作用する有用菌を雑菌の存在に比して大量に投入する有用菌の接種工程と、前記有用菌が投入された前記きのこ廃培地を堆積させて、初期の発酵が急速に進行する期間について、乾燥が進行できる大気開放環境下で発酵させる初期の発酵乾燥工程と、少なくとも前記初期の発酵乾燥工程を経て前記きのこ廃培地から生成された発酵資材に該発酵資材よりも乾燥度の高い有機乾燥材を投入して混合することで前記発酵資材の乾燥度を一気に高めてきのこ栽培用培地資材を得る乾燥材投入工程を有する。【選択図】図1
