Atef, Yousria. <br/><br/>
Design of center pivot irrigation system based on simulation model technique  [electronic resource]. 
 تصميم نظام الرى المحورى اعتمادا على تقنية نماذج المحاكاه. 

 - p.1441-1458 
<br/><br/>Includes references. 
<br/><br/> Centre pivot irrigation system is a promising and precise system, for increasing the utilization efficiency of unit water. Hence, A CPIM simulation model has been developed and validated, however, A CPIM model is based on crop type, weather data, and soil characteristics. The model comprises five sub-models for: (a) main sub-model; (b) data entry sub-model; (c) weather sub-model; (d) i"igation sub-model; and (e) results sub-model. The most important simulation outputs of the CP/M model include nozzle flow rate (m3/h), application rate (mm/h), and throw diameter (m). These outputs (outputs of 9 scenarios) were compared with observed/manufactured data for the calibration and validation of the model. Results of this comparison show that differences in model accuracy owing to different variables affecting the design and management of the center pivot were not significant. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation.<br/>Spraying equipment.<br/>Chemigation<br/>Simulation methods.<br/>center pivot irrigation