Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Composting and Fertilizing Characteristics of Poultry Manure Mixture with Compressed Expansion Rice Hull as Bulking Agent

수분조절제로서 팽화왕겨를 이용한 계분 발효 특성 및 시비 효과

  • Kim, Young-Sun (Division of Life and Environmental Science, College of Natural and Life Sciences, Daegu University) ;
  • Cho, Sung-Hyun (Hyosung O&B Co. Ltd.) ;
  • Lee, Hoon-Soo (Department of Biosystem Engineering, Chungbuk National University) ;
  • Lee, Geung-Joo (Department of Horticulture and Department of Smart Agriculture Systems, Chungnam National University)
  • 김영선 (대구대학교 원예학과) ;
  • 조성현 (효성오앤비(주) 연구소) ;
  • 이훈수 (충북대학교 바이오시스템학과) ;
  • 이긍주 (충남대학교 원예학과/스마트농업학과)
  • Received : 2020.04.17
  • Accepted : 2020.06.25
  • Published : 2020.12.30
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Abstract

This study was conducted to evaluate effects of compressed expansion rice hull (CERH) as bulking agent on physicochemical properties of composting poultry manure (PM) and of its fertilization on lettuce and pak choi growth. Treatments were designed as follows; sawdust treatment (90% PM + 10% sawdust; SP), peatmoss treatment (90% PM + 10% peatmoss; PP), and CERH treatments [PCR1 (90% PM + 10% CERH 1.3 mm) and PCR2 (90% PM + 10% CERH 3.0 mm)]. Physicochemical properties such as temperature, water content, pH, and total carbon of composted poultry piles for 31 days were unaffected by various bulking agents. However, total nitrogen content in compost pile was higher in PP and PCR1 than that of SP or PCR2. After composting for 31 days, content ranges of N, P2O5, and K2O in the composting PM piles were 19.1~19.7%, 47.6~51.6%, 2.76~3.65%, and 2.53~2.90%, respectively. As compared to SP treatment, dry weight of lettuce treated with PP and PCR1 increased by more than 10%, but only in PP for pak choi. These results indicated that CERH 1.3 could be used as bulking agents for composting PM on behalf of peatmoss or sawdust.

본 연구는 수분조절제로서 팽화왕겨(compressed expansion rice hull; CERH) 처리에 따른 계분의 발효 특성 및 발효된 가공계분의 시비에 따른 상추와 청경채의 생육에 미치는 영향을 조사하기 위해 수행되었다. 실험에 사용된 처리구는 톱밥 처리구(계분 90%+톱밥10%; SP), 피트모스 처리구(계분 90%+피트모스10%; PP), 팽화왕겨 1 처리구[계분 90%+CERH1 (��1.3 mm) 10%; PCR1] 및 팽화왕겨 2 처리구[계분 90%+CERH2 (��3.0 mm); PCR2]로 설정하였다. 31일간 진행된 계분 발효 과정에서 발효 더미의 온도, 수분 함량, pH 및 총탄소 함량은 수분조절제의 종류에 따른 차이를 나타내지 않았다. 시험 종료 시 PP 처리구와 PCR1 처리구의 질소 함량은 SP 처리구나 PCR2 처리구보다 높았다. 발효 후 건조된 가공계분의 질소, 인산, 칼리 함량은 각각 2.76~3.65%, 1.69~2.05%, 2.53~2.90%로 나타났다. 수분조절제별 가공계분의 작물 재배 시험에서 SP 처리구와 비교할 때, 상추는 PP와 PCR1 처리구에서 10% 이상 건물중이 증가하였으나, 청경채는 PP 처리구에서만 증가되었다. 상기 결과들을 종합할 때, 1.3 mm 크기의 팽화왕겨는 계분 발효 시 수분조절제로서 피트모스나 톱밥을 대신하여 사용할 수 있었다.

Keywords

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