CERES-Wheat Crop Simulation Model Application for Nitrogen Management of Wheat Varieties under Environmental Conditions of Sargodha

Nadeem Munawar; Shahwar Ibne-Aslam; Abubakar Siddique; Atta- -ur- Rehman

Abstract

AbstractCERES-Wheat model was calibrated and evaluated by using the observed data from a trail conducted during the year 2018-19, at experimental area of Agriculture College Sargodha, Pakistan to simulate different nitrogen levels effects on three wheat cultivars. Wheat varieties (AARI-2011, AAS-2011 and FSD-2008) were sown in main plots, while, nitrogen rates (0, 55, 110 and 165 kg ha-1) were allocated in sub plots. The Phonological events like flowering i.e. anthesis and physiological maturity phase were very close to the practical date as predicted by DSSAT model, however, prediction was more for leaf area index than actually observed in the field and d-index values were in the range of 0.934 to 0.991 for all the treatments. Model simulated economic production very close to the observed values obtained from the filed which illustrate the validation of the model under climatic conditions of Sargodha. Keywords: AARI-2011, Calibration, Fisher’s analysis, RMSE, DSSATCite this ArticleNadeem Munawar, Shahwar-Ibne-Aslam, Abubakar Siddique, Atta-ur-Rehman. CERES-Wheat Crop Simulation Model Application for Nitrogen Management of Wheat Varieties under Environmental Conditions of Sargodha. Research & Reviews: Journal of Crop Science and Technology. 2020; 9(1): 23–26p.