지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The pollutant concentrations at experimental paddy plots with three (excessive, standard, reduced) different fertilization rates were investigated during 2001-2002 irrigation seasons. Mean concentrations of pollutants in ponded water were not significantly different among three experimental plots, but the T-N concentrations in percolated water significantly depended on fertilization rates. The T-N, T-P and CODCr concentrations in ponded water during early irrigation season (late May to mid-June) were much higher than those during later irrigation season likely due to fertilization and low uptake by young rice crops. The T-N concentrations decreased but the concentrations of T-P and CODCr increased three days after tillering fertilization. The removal rates of T-N by paddy plots were 0.13-0.16 g/m2·d for an excessive fertilization plot, 0.08-0.25 g/m2·d for a standard fertilization plot, and 0.03-0.34 g/m2·d for a reduced fertilization plot three days after tillering fertilization. On the other hand, T-P and CODCr were released three days after tillering fertilization.
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등록된 정보가 없습니다.
참고문헌 (12)
참고문헌 신청
/ 1979 / Concentrations of nitrogen and phosphorus in paddy fields : 859 ~ 864
/ 1987 / Nitrate removal by flooding of paddy field J. of Jpn. Soc. Irrig. Drain. Reclam. Engrg. : 53 ~ 58
/ 1993 / Unit loads of pollu-tants in a paddy fields area with large- scaled plots during irrigation season Journal of the KSAE : 139 136 ~ 142 147
/ 1997 / Applied Statistics and the SAS Programming Language
/ 1997pp. / Ministry of Environment Standard Methods for Water Quality : 208 ~ 209
/ 1987 / Nitrate removal by flooding of paddy field J. of Jpn. Soc. Irrig. Drain. Reclam. Engrg. : 53 ~ 58
/ 1993 / Unit loads of pollu-tants in a paddy fields area with large- scaled plots during irrigation season Journal of the KSAE : 139 136 ~ 142 147
/ 1997 / Applied Statistics and the SAS Programming Language
/ 1997pp. / Ministry of Environment Standard Methods for Water Quality : 208 ~ 209
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