Calibration and Evaluation of ORYZA2000 under Water and Nitrogen Managements

Gui Bin Pang; Yan Li; Zheng He Xu; Huan Zhi Gao

doi:10.4028/www.scientific.net/AMM.641-642.246

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 641-642Calibration and Evaluation of ORYZA2000 under...

Calibration and Evaluation of ORYZA2000 under Water and Nitrogen Managements

Abstract:

Rice growth model of ORYZA2000 was introduced, we used field datas to verify the parameters. The aim is to check the adaptability of model, when it is applied to simulate dry matter, leaf area and yield under water and nitrogen managements. The results showed that, the model can simulate dry matter accumulation preferable, in which the observed dry matter of aboveground, leaf and sheath fit well with simulated results. But the simulated yield is higher then observed, may be the reason due to the rice lodging at later stages. While the simulated leaf area is lower than observed, the reason is that we have the dead leaves are counted in measuring. ORYZA2000 provides a powerful tool to explore the impact on the environment as well as water-saving irrigation of rice under optimal water and fertilizer managements.

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Periodical:

Applied Mechanics and Materials (Volumes 641-642)

Pages:

246-250

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.641-642.246

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Online since:

September 2014

Authors:

Gui Bin Pang*, Yan Li, Zheng He Xu, Huan Zhi Gao

Keywords:

Controlled Irrigation, ORYZA2000, Rice, Simulation Model, SSNM

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