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Technology for Improving the Uniformity of the Environment in the Oyster Mushroom Cultivation House by using Multi-layered Shelves

느타리버섯 균상재배사의 환경균일성 향상을 위한 기술 개발

  • Lee, Sunghyoun (Dept. of Agrcultural Engineering, National Academy of Agricultural Science) ;
  • Yu, Byeongkee (Dept. of Agrcultural Engineering, National Academy of Agricultural Science) ;
  • Kim, Hyuckjoo (Dept. of Agrcultural Engineering, National Academy of Agricultural Science) ;
  • Yun, Namkyu (Dept. of Agrcultural Engineering, National Academy of Agricultural Science) ;
  • Jung, Jongcheon (National Institute of Horticultural & Herbal Science)
  • 이성현 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 유병기 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 김혁주 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 윤남규 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 정종천 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2015.05.27
  • Accepted : 2015.06.18
  • Published : 2015.06.30

Abstract

Mushrooms can grow in nature when adequate temperature and humidity are maintained, but such condition can be satisfied for only a short period of time on an annual continuum. Therefore, it can be deemed that a majority of the distributed mushrooms in the current market are produced in an artificially manipulated environment. This study was conducted to resolve the problem of the Oyster mushroom cultivation house's internal temperature and humidity imbalance, where the Oyster mushrooms are cultivated in a multi-layered shelves. The air circulation fans were installed to improve the air uniformity of the Oyster mushroom cultivation house by using multi-layered shelves. During the experiment, the ambient temperature and the ambient relative humidity ranged from $5.2^{\circ}C$ to $20.4^{\circ}C$ and 40% to 100% respectively. Due to the change of the outdoor temperature, the internal temperature of the Oyster mushroom cultivation house also changed, ranging from $13.3^{\circ}C$ to $18.4^{\circ}C$, but the temperature gap between the different internal location of the facility during the conforming recorded time only ranged from $0.2^{\circ}C$ to $1.3^{\circ}C$, being significantly stable. The internal relative humidity, ranging from 82% to 96%, also changed due to the change of the outdoor temperature. Nevertheless, the relative humidity gap between the different internal location during the conforming recorded time only ranged from 2% to 7%. Furthermore, the research staff were able to maintain the concentration of $CO_2$ from 575ppm to 731ppm(below 1,000ppm was the goal) indicating the possibility of an even management of the internal environment by installing the air circulation fan.

버섯은 생육에 적합한 온도 및 수분이 유지되면 자연 상태에서도 원활하게 발생할 수 있지만 이러한 기간은 1년중 극히 일부에 지나지 않는다. 따라서 오늘날 시장에 유통되는 버섯은 대부분 인공적으로 조절된 환경에서 생산된 것으로 볼 수 있다. 기존 연구자들의 보고에 의하면 버섯재배사 내부의 온도 및 습도에 대한 불균일성이 큰 것으로 알려져 있고, 이를 극복하기 위한 다양한 기술 들이 개발되고 있다. 본 연구에서는 느타리버섯 균상재배사 내부에 공기를 위로 토출 할 수 있는 대류팬을 설치하고, 이에 따른 느타리버섯 균상재배사 내부의 위치에 따른 온도 및 습도 균일성을 향상하기 위하여 수행하였다. 시험기간 동안의 외기온도는 $5.2{\sim}20.4^{\circ}C$까지 변화하였고, 외기 상대습도는 40~100%까지 변화하였다. 외기온도의 변화에 영향을 받아 버섯재배사 내부의 온도도 $13.3{\sim}18.4^{\circ}C$ 변화하였지만 동일한 기록 시간의 균상 위치에 따른 온도 차이는 $0.2{\sim}1.3^{\circ}C$로 매우 균일하게 유지되는 것으로 나타났다. 버섯재배사 내부의 상대습도도외기 상대습도 변화에 영향을 받아 82~96%로 변화하였지만 동일한 기록시간의 균상 위치에 따른 상대습도 변화의 차이는 2~7%로 나타났고, $CO_2$ 농도 변화는 약 575~731ppm으로 목표로 하는 1,000ppm 이하로 유지되는 것으로 나타나 내부 대류팬의 설치로 버섯재배사 내부의 균일한 환경관리가 가능한 것으로 나타났다.

Keywords

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