The present study was conducted by using data from the experiment carried out at Crop Research Station, N. D. University of Agriculture & Technology, Bahraich (U. P.) during kharif 2006 and 2007. The experiment was conducted with three sowing dates in kharif season with one cultivar (HQPM-1). Sowing dates of experimental crop were 25 May, 15 June and 5 July. Genetic coefficients required for the CERES-Maize V 4.0 model for simulation of the growth, yield and yield attributes of maize crop have been derived for maize cultivar HQPM-1 for this agroclimatic zone. Simulated values obtained were validated against observed values of field experiment during kharif 2008. Results revealed that the simulated values of anthesis, physiological maturity, yield and yield attributes (like stalk, number of grains and test weight) were fairly well with measured values within the error percentage of 3.5, 6.5, 2.8, 23.8, 12.3 and 12.4%, respectively.