본 연구는 농업부산물과 가축분퇴비를 혼합 후 부숙하여 제조한 퇴비를 밭 토양에 적용하였을 때 가을배추의 생육, 수량, 질소 이용 특성 및 토양 화학성에 미치는 영향을 평가하고 무기질비료와 병용효과를 비교하였다. 재배시험은 답전윤환 밭에서 완전 임의배치 3반복으로 수행하였으며, 처리구는 무처리(NF), 무기질비료(NPK, N-P2O5-K2O=33.9-28.1-18.4 kg 10a-1), 무기질비료 + 농업부산물(NPK+AR), 무기질비료 + 가축분퇴비 (NPK+MC), 무기질비료 50% + 농업부산물 혼합 가축분퇴비(0.5NPK+ARC), 무기질비료 + 농업부산물 혼합 가축분퇴비(NPK+ARC)로 구성하였 다. 무기질비료는 토양검정 결과에 따라 권장사용량으로 시비하였으며, 퇴비는 정식 전 토양에 혼합처리하였다. 연구결과, 무기질비료 사용량을 50%로 줄인 0.5NPK+ARC에서 12,211 kg 10a-1로 가장 높았으며, 무기질비료 처리구 대비 8% 증가하였다. 토양화학성 또한 pH 6.7로 시험전 (pH5.6)보다 증가하였으며, 유기물 함량 25.3%, 유효인산 337 mg kg-1으로 처리구 중 가장 높았다. 뿐만 아니라 농업부산물의 점진적 무기화와 토양 환경개선 효과로 질소 흡수량과 질소 이용 효율도 농업부산물 혼합 가축분퇴비 처리구에서 높게 나타났다. 따라서 농업부산물 혼합 가축분퇴비는 토양 비옥도 개선과 작물 생산성 향상 및 무기질비료 사용량 절감을 동시에 달성할 수 있는 친환경적 토양관리 방안으로 판단된다.

This study evaluated the effects of compost produced by co-composting agricultural residues and manure compost on the growth, yield, nitrogen use characteristics, and soil chemical properties of autumn kimchi cabbage under upland field conditions. In addition, its combined effect with inorganic fertilizer was compared. The field experiment was conducted in a paddy–upland rotation field using a completely randomized design with three replications. The treatments consisted of: no fertilization (NF); inorganic fertilizer (NPK, N–P2O5–K2O = 33.9–28.1–18.4 kg 10a-1); inorganic fertilizer + agricultural residues (NPK+AR); inorganic fertilizer + manure compost (NPK+MC); 50% inorganic fertilizer + agricultural residues compost (0.5NPK+ARC); and inorganic fertilizer + agricultural residues compost (NPK+ARC). Inorganic fertilizer was applied at the recommended rate based on soil testing, and compost was incorporated into the soil prior to transplanting. The results showed that the 0.5NPK+ARC treatment, in which the inorganic fertilizer rate was reduced by 50%, produced the highest yield (12,211 kg 10a-1), representing an 8% increase compared with the full-rate inorganic fertilizer treatment. Soil chemical properties were also improved, with soil pH increasing to 6.7 from the initial pH of 5.6. The 0.5NPK+ARC treatment recorded the highest values of soil organic matter (25.3%) and available phosphorus (337 mg kg-1) among the treatments. Moreover, enhanced nitrogen uptake and nitrogen use efficiency were observed in the agricultural residues compost treatments, likely due to the gradual mineralization of organic residues and improved soil conditions. These results suggest that agricultural residues compost mixed with manure compost can serve as an environmentally sustainable soil management practice by improving soil fertility and crop productivity while reducing inorganic fertilizer input.

초록
Abstract
서론
재료 및 방법
    1. 공시재료
    2. 작물 재배 시험
    3. 작물 생육 및 질소이용효율 평가
    4. 토양 화학성 분석
    5. 통계분석
결과 및 고찰
    1. 배추 생육 특성
    2. 토양 화학적 특성
    3. 배추 질소흡수량 및 질소이용효율
감사의 글
References

• 윤진주(농촌진흥청 국립농업과학원 토양물환경과 박사후연구원) | Jin Ju Yun (Postdoctoral Researcher, Division of Soil and Water Environment, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Korea)
• 박재혁(농촌진흥청 국립농업과학원 토양물환경과 박사후연구원) | Jae Hyuk Park (Postdoctoral Researcher, Division of Soil and Water Environment, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Korea)
• 전상호(농촌진흥청 국립농업과학원 토양물환경과 연구사) | Sang Ho Jeon (Agricultural Researcher, Division of Soil and Water Environment, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Korea)
• 홍성준(농촌진흥청 국립농업과학원 기후변화평가과 연구관) | Sung Jun Hong (Agricultural Senior Researcher, Division of Climate Change, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Korea)
• 심재홍(농촌진흥청 국립농업과학원 기후변화평가과 연구사) | Jae Hong Shim (Agricultural Researcher, Division of Climate Change, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Korea) Corresponding author