- 오수처리수 관개방법에 따른 수도 생육과 토양내 영양물질 변화
- Rice growth and Nutrient change in paddy soil with reclaimed sewage irrigation
- ㆍ 저자명
- 윤춘경,황하선,우선호
- ㆍ 간행물명
- 한국농공학회지
- ㆍ 권/호정보
- 2001년|43권 6호|pp.154-162 (9 pages)
- ㆍ 발행정보
- 한국농공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This study was performed to examine the rice growth and nutrient change in paddy soil with reclaimed sewage irrigation. Total nitrogen and total phosphorus in the experimental system were analyzed before and after rice culture. The experiment lasted three consecutive years, and this paper presents results of the last year. Additional supply of nutrients to the rice culture by reclaimed sewage irrigation was significant and it increased the yield. Nutrient uptake by rice plant increased with more nutrient supplied, however. there was limit in plant uptake. Nutrient accumulation occurred in the soil and it was more apparent for the phosphorus where most of the remaining quantity was accumulated while substantial amount of nitrogen was lost during the growing season. This study suggested that additional nutrient supply by reclaimed sewage irrigation might be a supplemental benefit to the rice culture, and it can help the fertilization management. However, long term effects of continual reclaimed sewage irrigation should be assessed carefully including nutrient mass balance in the paddy rice culture system.