Nutrient Balance and Runoff Loading During Cropping Period from a Paddy Plot in Maryeong Irrigation District

마령지구 필지 논으로부터 영농기 영양물질 수지와 유출부하량

  • 최진규 (전북대학교 농과대학 농공학과(농업기술연구소)) ;
  • 구자웅 (전북대학교 농과대학 농공학과(농업기술연구소)) ;
  • 손재권 (전북대학교 농과대학 농공학과(농업기술연구소)) ;
  • 윤광식 (전남대학교 농과대학 생물산업공학과(농업과학기술연구소)) ;
  • 조재영 (전북대학교 농과대학 농화학과)
  • Published : 2001.09.01

Abstract

A study was carried out to investigate the water balance and losses of nutrients at a paddy plot located at the southern Korea. The observed amount of precipitation, irrigation, runoff, evapotranspiration and percolation for the experimental paddy plot during cropping period were 1,030, 566, 701, 551. and 310 mm for 1999 and 1.214, 413, 710, 682, and 234 mm for 2000 year, respectively. The measured input quantities of N and P into the paddy field during cropping period were 122 to 140 kg N $ha^-1$ and 29 to 30 kg $P_2O_5$ kg $ha^-1$ by chemical fertilizer, 20 to 28 kg N $ha^-1$ and 0.35 to 0.36 kg P $ha^-1$ by precipitation, and 26 to 35 kg N $ha^-1$ and 0.57 to 0.72 kg P$ha^-1$ by irrigation water. respectively. The output amounts of N and P from paddy field were measured as follows. They were 48 to 52 kg N $ha^-1$ and 1.1 to 1.6 kg P $ha^-1$by runoff water, and 9 to 12 kg N $ha^-1$ and 0.04 to 0.05 kg $ha^-1$ by percolation water. When the runoff losses of nutrients were compared to applied chemical fertilizer. it was found that 34.3 % to 42.6 % of nitrogen lost via runoff while runoff losses of phosphorus account for 3.8 % to 5.3 % of the total applied amount. When the ratio was calculated between nutrients losses by percolation water and the applied of chemical fertilizer, two year results showed 6.4 % to 9.8 % for the nitrogen and 0.1% to 0.2% phosphorus, respectively.

Keywords

References

  1. 담수호의 환경오염 및 부영양화 방지대책 수립(Ⅱ) 권순국;유명진
  2. 농사시험연구보고서 벼 재배시 질소양분 행동에 관한 연구 이기상;허일봉
  3. 한국수자원학회논문집 v.30 no.4 논의 유출곡선번호 추정 임상준;박승우
  4. 한국환경농학회지 v.8 no.2 김해평야 관개수 오염도가 벼 영양생리에 미치는 영향 하호성;허종수
  5. 환경정책기본법 환경처
  6. Wetlands v.77 Nutrient and sediment removal in forested wetlands receiving pumped agricultural drainage water Chescheir G.M.;Gilliam J.M.;Skags R.W.;Broadhead R.G.
  7. Soil Sci.Soc.Am.Jour. v.58 Soil Amendments for reducing phosphorus concentration of drainage water from Histosols Coale R.J.;Poter P.S.;Davis W.
  8. Soil chemical analysis Jackson,M.L.
  9. Water Sci.Technol. v.33 A study on contaminant load from the forest and rice paddy fields Kawara,O.;Hirayama,K.;Kunimatsu,T.
  10. Korean Comm. Orrig. And Drain. v.2 Nutrient effluence by the outflowing water from the paddy field during rice growing season Kim, B.Y;J.K. Cho.
  11. The Japanese Soc. Irrig. Drain and Reclam. Eng. v.170 Runoff loadings of materials causing water pollution from a paddy field during a non-planting period Kunimatsu T.;Rong,L;Sudo,M.;Takeda,I.
  12. Teport of Natl.Environ.Res.Korea v.12 Studies on good agricultural practice in the use of fertilizer and agrochemical Lee,C.K.;K.C.Lee;H.J.Lee;H.I.Rhu;M.H.Lee;S.H.Jun;S.S.Kim;S.K.Kim;S.D.Kim
  13. J.Environ.Qual. v.24 Reducing soil erosion and agricultural chemical losses with conservation tillage Seta A.K.;Blevins R.S.;Frye W.W.;Barfield W.
  14. Korean J.Environ.Agric. v.9 Input/output of nitrogen and phosphorus in a paddy field Shin,D.S.;S.K.Kwun
  15. The Japanese Soc. Irrig. Drain and Reclam. Eng. v.153 Contaminant balance of a paddy field area and its loading in the water system-studies on pollution loadings from a paddy field area Takeda I.;T.Kunimatsu;S.Kobayashi;T.Maruyama
  16. Water Res. v.31 Non-point pollutant reduction in a paddy-field watershed using a circular irrigation sustem Takeda,I.;Fukughima,A.;Tanaka R
  17. Natl. Environ. Res. Center FWPCA methods for chemical analysis of water wastes U.S.Department of Interior
  18. Water. Sci. Technol. v.33 Regional material accounting of nitrogen in upper Austria Zessner,M.;Kaas,T.;Brunner,P.H.;Fleckseder,H.