오수처리수 관개방법에 따른 수도 생육과 토양내 영양물질 변화

Rice growth and Nutrient change in paddy soil with reclaimed sewage irrigation

  • 발행 : 2001.11.01

초록

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.

키워드

참고문헌

  1. 96 농업환경 심포지움 환경오염의 실태와 대책, -농업용수 및 농경지 오염을 중심으로- 김복영
  2. 한국토양비료학회지 v.32 no.2 사질논에서 벼 재배기간중 시비방법별 양분수지 노기안;하호성
  3. 토양화학분석법 농업기술연구소
  4. 한국토양비료학회지 v.31 no.2 빗물에 의해 축산폐수가 유입되는 논 생태계에서 영양물질 순환에 미치는 토양과 식생의 영향평가 안윤수;강기영;김세근;노기안;박무언
  5. 시험연구사업 보고서(농업환경부편) 벼 재배시 양분이동에 관한 연구 이기상;이동창;허일봉;이연
  6. 시험연구사업 보고서(농업환경부편) 벼 재배시 질소양분 행동에 관한 연구 이기상;허일봉
  7. 한국토양비료학회지 v.18 no.1 논토양의 탈질작용에 의한 연구 이상규;김승환;박준규
  8. 수도작 이은웅
  9. 벼의 생리와 생태 조동삼(외14인)
  10. 한국토양비료학회지 v.21 no.2 북한강 율문천 소유역에서 수질변화와 농업활동에 의한 N, P부하량 정영상;양재의;박철수;권영기;주영규
  11. 한국토양비료학회지 v.29 no.1 건답직파 논에서 초기의 암모니아 휘산경감을 위한 인산 입힌 요소의 효과 정영상;하상건;하병옥;이호진
  12. 경상대학교 50주년 기념 심포지엄 지속농업의 원리와 실천과제 최진용
  13. Standard Methods for the Water and Waste-water Examination(19th ed.) American Public Health Association
  14. Methods of Soil Analysis, Part 2: Chemical and microbial Properties (2nd ed.) American Society of Agronomy, and Soil Science Society of America