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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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The objectives of this study were to assess the rice yields and evaluate fertilizer reduction effect of reclaimed wastewater irrigation in paddy fields using the Decision Support System for Agrotechnology Transfer (DSSAT) v4.5 model. The experimental plots were designed, which was located near the Suwon wastewater treatment plant in Gyeonggi-do, Korea. The rice yield, irrigation amount, irrigation water quality and soil data were monitored and collected between 2006 and 2009. The DSSAT model was calibrated and validated with observed data. The methods that were used to evaluate this model were the root mean square error (RMSE), normalized root mean square error (nRMSE), and index of agreement (d). The values of RMSE, nRMSE, and d ranged from 145 to 789 kg ha-1, 3.0 to 13.3 %, and 0.90 to 0.95 for the calibration period, respectively and represented from 91 to 538 kg ha-1, 2.0 to 10.4 %,0.94 to 0.98 for the validation period, respectively. Overall, this model showed good agreement with observed data of rice yields irrigated with reclaimed wastewater. The fertilizer reduction effect in paddy field of reclaimed wastewater irrigation was assessed about 60 % in 2008 and 40 % in 2009.
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참고문헌 (25)
참고문헌 신청
Chae, Young Am / 1991 / Basic Biostatics / Hyangmoonsa
Cho, Kyung Sook / 1999 / Regional Crop Evaluation and Yield Forecast of Paddy Rice Based on Daily Weather Observation / Korean Journal of Agricultural and Forest Meteorology
Jamieson, P.D / 1991 / A test of the computer simulation model ARCHEAT1 on wheat crops grown in New Zealand / Field Crops Research 27 : 337 ~ 350
Jang T. I. / 2009 / Environmental effects of reclaimed wastewater irrigation on paddy fields / 박사 / Seoul National University
Jones, J. W / 2003 / The DSSAT cropping system model / European Journal of Agronomy 18 : 235 ~ 265
Cho, Kyung Sook / 1999 / Regional Crop Evaluation and Yield Forecast of Paddy Rice Based on Daily Weather Observation / Korean Journal of Agricultural and Forest Meteorology
Jamieson, P.D / 1991 / A test of the computer simulation model ARCHEAT1 on wheat crops grown in New Zealand / Field Crops Research 27 : 337 ~ 350
Jang T. I. / 2009 / Environmental effects of reclaimed wastewater irrigation on paddy fields / 박사 / Seoul National University
Jones, J. W / 2003 / The DSSAT cropping system model / European Journal of Agronomy 18 : 235 ~ 265
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