초록

연구개발결과
○ 분뇨 고형물 조절 및 양질액비는 액비재순환 효율을 향상시킴
○ 액비재순환에 의해 돈사별로 악취 물질 검출횟수 적음
○ 복숭아 과수원 SCB 액비 관비 기준 설정
○ 과원 퇴·액비 이용실태 조사 및 이용기술 매뉴얼 제작 배부

Abstract ▼

This study was conducted to develop odor reducing system by recycling the fermented liquid in pig farm and to investigate the effect of slurry composting and biofiltration(SCB) liquid manure application on fruit qualities and soil chemical properties in peach orchard. Slurry and liquid was stored in

This study was conducted to develop odor reducing system by recycling the fermented liquid in pig farm and to investigate the effect of slurry composting and biofiltration(SCB) liquid manure application on fruit qualities and soil chemical properties in peach orchard. Slurry and liquid was stored in experimental slurry pit (0.3m wide X 0.7m length X 0.6m hight). Amount of slurry and liquid filled in slurry pit was 50cm slurry + 0cm liquid(T1), 35cm slurry + 15cm liquid (T2), and 15cm slurry + 35cm liquid (T3). After 21d incubation, phenols and indoles were decreased in T3 compare to T1 by 72% and 47%, respectively. To prevent line being clogged by sludge in pig farm, we successively adapted the fermented liquid recycling system, filtered slurry using screen, or cleaned pig pit every 6 month. Liquid and fresh manure was mixed with 5:1~10:1 ratio to produce high quality liquid in fermenter and to reduce odor in pig pit. Amount of slurry stored in pig pit was reduced in summer and increased in winter period to improve fermentation. Pipelines for transferring liquid was built under the ground to prevent rupturing and valve was installed to control the amount of liquid stream. Indole level in slurry was reduced by 28% when liquid was recycled. Liquid quality was supposed to be high since phenol or skatole was not detected in outlet and injection port in liquid recycling farm.
It maybe necessary to differentiate the odor reducing method because the concentration of odor compounds are varied depend on the pig farms including piglet, grower, finisher, or sow farms.
SCB liquid manure was fertigated ten times from April to October in SCB plot, whereas chemical fertilizer was treated two times as basal and additional fertilizer in control plot. The shoot growth, leaf nitrogen and potassium content, soil exchangeable K, fruit weight and yield were higher in SCB plot than in control. Soluble solid content and acidity, soil organic matter, soil available phosphate and soil exchangeable Mg showed no significant difference between treatments, and the leaf calcium and magnesium content were lower in SCB plot than in control. In conclusion, fertigating SCB liquid manure in peach orchard has positive effects on fruit weight and yield, and it is suggested that periodical soil testing is needed because of the possibility of K accumulation in SCB liquid manure treated soil when the orchard is fertigated based on the soil nitrogen content. The survey result of compost and liquid manure application was appling of a small quantity of compost but lots of organic fertilizer

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 요약문 ... 3
• SUMMARY ... 4
• 목차 ... 5
• 제 1 장 서 론 ... 6
• 제 2 장 국내외 기술개발 현황 ... 8
• 제1절 국내 연구 현황 ... 8
• 제2절 국외 연구 현황 ... 11
• 제 3 장 연구개발수행 내용 및 결과 ... 12
• 제1절 돈사 액비재순환 시스템 타당성 조사 ... 12
• 제2절 돈사 슬러리와 발효액비의 혼합비율별 악취평가 ... 13
• 제3절 돈사 액비재순환 농가 실태조사 ... 17
• 제4절 복숭아 과원 SCB 액비 관비 ... 20
• 제5절 과원 퇴·액비 이용실태조사 ... 24
• 제6절 과원 퇴·액비 이용기술 매뉴얼 제작 ... 27
• 제 4 장 연구개발목표 달성도 및 대외기여도 ... 29
• 1절. 목표대비 달성도 ... 29
• 2절. 정량적 성과 ... 29
• 제 5 장 연구개발결과의 활용계획 ... 31
• 제1절 축산발효액 순환처리 시스템의 활용방안 ... 31
• 제2절 작목적용 연구 활용방안 ... 31
• 제3절 추가연구의 필요성 ... 31
• 제 6 장 연구개발과정에서 수집한 해외과학기술정보 ... 32
• 제 7 장 기타 중요 변동사항 ... 33
• 제 8 장 국가과학기술종합정보시스템에 등록한 연구장비 현황 ... 34
• 제 9 장 참고문헌 ... 35
• 끝페이지 ... 38