Feasibility of aqua crop model for predicting yield and biomass of wheat crop

The study was carried out to investigate the effect of different level and method of irrigation on yield and yield contribution parameters of wheat crop. The results obtained under drip irrigation treatments were compared with the surface irrigation treatments. Crop yield and yield contributing characters for wheat crop were maximum in the subsurface drip irrigated treatments. Water supply to the wheat crop was significantly higher in the conventional irrigation as compared to other treatments. The AquaCrop model was calibrated for simulation of yield and biomass of wheat crop for all treatments with the prediction error statistics 0.96 < E < 0.99, 0.15 < RMSE < 1.10,.90 < R²< 0.94 and 0.59 < MAE < 0.87 t ha⁻¹. The model was validated for wheat crop yield and biomass with all treatment combinations with prediction error statistics values 0.96 < E < 0.99, 0.28 < RMSE <1.1, 0.90 < R²< 0.96 and 0.38 < MAE < 11 ha⁻¹.