Oriental Journal of Computer Science and Technology

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Comparative Evaluation of WOFOST and CERES-Rice Models in Simulating Yield of Rice Cultivars at Navsari


Affiliations
1 Agricultural Meteorological Cell, Department of Agricultural Engineering, Navsari Agricultural University, Navsari- 396 450, India
2 Department of Agricultural Meteorology, Anand Agricultural University, Anand-388 110, India
 

A field experiment was conducted during kharif season of 2015 to assess the prediction performance of CERES-Rice and WOFOST model for grain and straw yield of three rice cultivars viz., (V1:Jaya, V2: Gurjari and V3: GNR-2) sown under four different environments viz., (D1: 10/07/2015, D2: 25/07/2015, D3: 09/08/2015 and D4: 24/08/2015) with two nitrogen levels N1:75 and N2:100 kg NPK/ha-1. Results showed that the prediction of WOFOST model forgrain yield of rice cultivars under different treatments more close to the corresponding observed value with percent error PE between (18.66%)as camper to CERES-rice model with PE (28.56%), but for straw yield CERES-rice model give more close prediction than WOFOST model with PE (20.99%) and (27.33%) between predicted and observed value.

 

Keywords

WOFOST, CERES, Simulation, Rice Cultivars, Date of Sowing, Nitrogen Levels.
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  • Comparative Evaluation of WOFOST and CERES-Rice Models in Simulating Yield of Rice Cultivars at Navsari

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Authors

Nilesh J. Hadiya
Agricultural Meteorological Cell, Department of Agricultural Engineering, Navsari Agricultural University, Navsari- 396 450, India
Neeraj Kumar
Agricultural Meteorological Cell, Department of Agricultural Engineering, Navsari Agricultural University, Navsari- 396 450, India
B. M. Mote
Department of Agricultural Meteorology, Anand Agricultural University, Anand-388 110, India
Chiragkumar M. Thumar
Agricultural Meteorological Cell, Department of Agricultural Engineering, Navsari Agricultural University, Navsari- 396 450, India
D. D. Patil
Department of Agricultural Meteorology, Anand Agricultural University, Anand-388 110, India

Abstract


A field experiment was conducted during kharif season of 2015 to assess the prediction performance of CERES-Rice and WOFOST model for grain and straw yield of three rice cultivars viz., (V1:Jaya, V2: Gurjari and V3: GNR-2) sown under four different environments viz., (D1: 10/07/2015, D2: 25/07/2015, D3: 09/08/2015 and D4: 24/08/2015) with two nitrogen levels N1:75 and N2:100 kg NPK/ha-1. Results showed that the prediction of WOFOST model forgrain yield of rice cultivars under different treatments more close to the corresponding observed value with percent error PE between (18.66%)as camper to CERES-rice model with PE (28.56%), but for straw yield CERES-rice model give more close prediction than WOFOST model with PE (20.99%) and (27.33%) between predicted and observed value.

 

Keywords


WOFOST, CERES, Simulation, Rice Cultivars, Date of Sowing, Nitrogen Levels.

References





DOI: https://doi.org/10.13005/ojcst%2F10.01.35