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느타리 수확후배지를 이용한 가축분퇴비의 이화학적 특성

Physico-chemical properties of livestock manure compost using spent oyster mushroom (Pleurotus ostreatus) substrate

  • 장재은 (경기도농업기술원 친환경미생물연구소) ;
  • 임성희 (경기도농업기술원 친환경미생물연구소) ;
  • 신민우 (경기도농업기술원 친환경미생물연구소) ;
  • 문지영 (경기도농업기술원 친환경미생물연구소) ;
  • 남주희 (경기도농업기술원 친환경미생물연구소) ;
  • 임갑준 (경기도농업기술원 친환경미생물연구소)
  • Jae-Eun Jang (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services) ;
  • Sung-Hee Lim (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services) ;
  • Min-Woo Shin (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services) ;
  • Ji-Young Moon (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services) ;
  • Joo-Hee Nam (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services) ;
  • Gab-June Lim (Department of Eco-Friendly Microorganism Research Institute, Gyeonggi-do Agricultural Research and Extension Services)
  • 투고 : 2023.06.12
  • 심사 : 2023.08.11
  • 발행 : 2023.09.30

초록

현물 상태의 느타리 수확후배지를 사용하여 기존 가축분퇴비에서 수분조절제로 사용되는 톱밥을 대체하는 연구를 수행한 결과는 다음과 같다. 느타리 수확후배지 40%+ 가축분 60% 혼합후 1차, 2차 발효 및 50일 이상 후숙하면 기존 톱밥 혼합 가축분퇴비에 비해 퇴비 제조기간이 동일하였으며 부숙과정동안 온도가 70℃ 이상 높아져 충분히 부숙이 되었으며 발효 및 후숙과정을 거치면서 가축분퇴비의 수분함량이 55% 이하로 비료공정규격에 적합하였다. 또한 퇴비 부숙기간 및 비료성분 등에 차이가 없었으며, 유기물 함량, 수분, OM/N, 부숙도, 중금속 등 비료공정규격에도 적합하게 나타났다. 톱밥을 혼합한 가축분퇴비에 비해 퇴비 제조기간중 암모니아 가스 발생은 적은 것으로 나타났다. 느타리 수확후배지를 혼합한 가축분퇴비의 미생물 밀도를 조사한 결과 세균, 방선균 밀도가 톱밥을 혼합한 퇴비에 비해 높게 나타났으며 공정화된 퇴비 제조 과정을 통해 충분한 부숙기간을 거치면 느타리 종균은 퇴비내에 존재하지 않는 것으로 나타났다.

We conducted an on-site application study at the livestock cooperative fertilizer plant to compare the composting period, temperature change, moisture content, and chemical properties between livestock manure compost using sawdust as a moisture regulator with those using spent oyster mushroom substrate. The composting period, moisture content, and fertilizer composition of compost containing spent oyster mushroom substrate did not differ from that of conventional compost mixed with sawdust after the first and second fermentation and post-maturation stages, it was suitable as a material for manufacturing livestock manure compost. The spent oyster mushroom substrate also lower the production cost of livestock manure compost by replacing the more expensive sawdust. The developed technology is expected to contribute towards the utilization of by-products of the oyster mushroom harvest while simultaneously producing high quality livestock manure compost.

키워드

과제정보

이 연구는 농촌진흥청 지역특화작목기술 개발 연구비(PJ0161362022) 지원에 의하여 수행된 결과의 일부이며 이에 감사드립니다.

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