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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 805 - 819 (15page)
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초록· 키워드
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The study was carried out to develop a mathematical model for evaluating the effect of organic fertilizers in organic rice production systems. A function to simulate the nitrogen mineralization process in the paddy soil has been developed and integrated into ORYZA2000 crop growth model. Inorganic nitrogen in the soil was estimated by single exponential models, given temperature and C:N ratio of organic amendments. Data collected from the two-year field experiment were used to evaluate the performance of the model. The revised version of ORYZA2000 provided reasonable estimates of key variables for nitrogen dynamics and crop growth in the organic rice production systems. Coefficient of determination between the measured value and simulated value were 0.6613, 0.8938, and 0.8092, respectively for soil inorganic nitrogen, total dry matter production, and rice yield. This means that the model could be used to quantify nitrogen supplying capacity of organic fertilizers relative to chemical fertilizer. Nitrogen dynamics and rice growth simulated by the model would be useful information to make decision for organic fertilization in organic rice production systems.
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등록된 정보가 없습니다.
참고문헌 (11)
참고문헌 신청
조성현 / 2007 / 유박의 온도, 수분, 토심 및 토성에 따른 질소의 무기화 / 유기물자원화 15(1):149~158
임종욱 / 2015 / 밭토양 조건에서 유박과 아미노산 비료의 질소 무기화량 추정 / 한국유기농업학회지 23(4):867~873
Jones, J. W. / 2003 / The Dssat Cropping System Model / Eur J Agron 18(3-4):235~265
강보구 / 2011 / 시설재배지 유기물자원 적정 시용기준 설정 / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 44(2):248~255
Kim, J. G. / 2000 / Amount of Maximum Compost Application on the Long - Term Application with Different Organic Material Sources in Upland Soil / Korean J Soil Fert 33(3):182~192
임종욱 / 2015 / 밭토양 조건에서 유박과 아미노산 비료의 질소 무기화량 추정 / 한국유기농업학회지 23(4):867~873
Jones, J. W. / 2003 / The Dssat Cropping System Model / Eur J Agron 18(3-4):235~265
강보구 / 2011 / 시설재배지 유기물자원 적정 시용기준 설정 / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 44(2):248~255
Kim, J. G. / 2000 / Amount of Maximum Compost Application on the Long - Term Application with Different Organic Material Sources in Upland Soil / Korean J Soil Fert 33(3):182~192
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