Author(s): S.T. YADAV AND N. R. WAGH

Abstract: The present study on groundnut modeling for yield using CropSyst model under middle Gujarat was carried out having three dates of sowing and three cultivars in factorial randomized block design. The calibration result showed much closed to simulation of growth and yield. Validation was worked out using mean absolute error, mean bias error, mean absolute per cent error, root mean square error and refined index of agreement. The performance of CropSyst for simulated growth and yield attributes were overestimated to be observed of GG 20, GJG 34 and TAG 37A cultivars under onset of monsoon. The simulation model showed good value of MBE, MAPE, RMSE and also dr which was 0.75. Hence, it shows that the confidence level was more on model simulation with observed data. The model performs better for GG 20 as compared to GJG 34 and TAG 37A.

DOI: 10.22271/09746315.2023.v19.i1.1657

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