7960

7395

كارشناسي ارشد

آب

اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي

1391

ده،113ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

مهدي قيصري، فرهاد موسوي

شاهرخ زند پارسا، گريت هوگنبوم

31/6/92

جهانگير كوپايي، محمدرضا مصدقي

مهندسي كشاورزي

ID7395

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Evaluating the Model Derived from Coupling the CSM CERES Maize with the SWAP Model Abstract Crop models try to simulate the interaction between soil atmosphere plant systems with the help of computers They can be also effective tools in research education and evaluating the performance of agricultural management practices This study was aimed to develop a new and efficient crop model based on CSM CERES Maize model arid regions In this study a new crop model was tested that integrates its various components with the purpose of developing a more efficient model In the hybrid model CERES Maize supplies SWAP model with daily leaf area index and root depth and on the other hand SWAP model supplies CERES Maize with daily weather data soil water content actual and potential soil evaporation and plant transpiration calculated from Penman Monteith equation and finally the actual root water uptake For assessing the performance of CERES Maize hbased in water deficit conditions a data set of a field experiment previously carried out on silage corn at the Agricultural Research Center in Varamin Iran in 2004 was used The data set included all required soil crop and weather data of the experiment with two deficit levels 0 7 soil moisture deficit SMD and 0 85 SMD full SMD and over irrigation treatment and also three nitrogen N fertilization levels 0 150 and 200 kgN ha The CERES Maize hbased was calibrated with the genetic coefficients that were obtained from previous studies and also the crop coefficients claculated for each irrigation treatment at 150 kgN ha Then the calibrated model was evaluated for 0 and 200 kgN ha treatments for all irrigation levels Simulation results were compared to the original DSSAT CERES Maize model According to the comparison of the both models in many different aspects it seems that both models can simulate very well the maize production A significance difference was found in their prediction of actual soil evaporation actual plant transpiration and average and total simulated biomass but since no significance difference was found in their soil water simulation this matter became really complicated to decide which one of the models was better Actually it needs further studies to check their performance with more details Despite the fact the new model needs more improvement generally because the simulation of target parameter biomass was fairly successful in both two years it can be concluded that the model is enough ready for more deep research on simulation of maize growth Keywords CSM CERES Maize CERES Maize hbased SWAP Crop growth models Maize PDF created with pdfFactory trial version www pdffactory com

مهدي قيصري، فرهاد موسوي

شاهرخ زند پارسا، گريت هوگنبوم

جهانگير كوپايي، محمدرضا مصدقي