Simulation of growth and development process of rice cultivars under nitrogen management with CERES-Rice model

Most climate change studies benefit from crop models. Crop simulation models could provide an alternative, less time-consuming and inexpensive means of determining the optimum crop N requirements under management nitrogen conditions. The model CERES-Rice, which simulates the growth and development of rice under conditions of potential production and water and nitrogen limitations. In order to evaluate model CERES-Rice, in the form of software DSSAT on yield and yield components of rice (Hashemi cultivar) in four different levels of nitrogen fertilizer (N1 = 0, N2 = 30, N3 = 60, N4 = 90 kg N ha net) in Rasht region in the 1392 crop year field experiment in a randomized complete block design with four replications in rice research Institute was conducted. Results indicated that, Researchers can use CERES-Rice 2000 to simulation Harvest Index, Leaf dry weight and Grian yield of rice cultivars under the management nitrogen fertilizer conditions and investigate optimum nitrogen fertilizer.