Investigation of the Nitrogen Content of Wheat According to Changing Meteorological Factors by Hermes Model

Investigation of the Nitrogen Content of Wheat According to Changing Meteorological Factors by Hermes Model Nilcan Altinbas 1* , Sami Kaya 1 , Elif Inan 1 , Baris Caldag 1 , Levent Şaylan 1 1 Istanbul Technical University, Faculty of Aeronautics and Astronautics, Department of Meteorological Engineering, Istanbul, TURKEY [1] akatas@itu.edu.tr [1] Corresponding author: akatas@itu.edu.tr [*] ABSTRACT Ongoing increases in global population and expanding settlement areas brought by this situation have an important results like decreasing farmlands. Hence, it has great importance to increase the yield rates obtained from the unit area. As well known, crop yield is mainly affected by nitrogen content of soil and plant. Thus, in this study, it was aimed to investigate the nitrogen content in a wheat cultivated field by the help of a HERMES crop model by using some meteorological parameters collected from an experimental site in Kirklareli City of the Thrace Region located in northwestern part of Turkey. In this frame, possible effects of variations in meteorological parameters were simulated using the model. Variations in nitrogen content were determined under consideration of the winter wheat crop grown. Results were evaluated by means of the analysis of both plant and soil nitrogen contents.  Key words:  Mineralization, Climate Change, Yield, Winter Wheat [*] Corresponding author: akatas@itu.edu.tr