Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat)
In this study, the FAO agro-hydrological model was investigated and evaluated to predict of yield production, soil water and solute balance by winter wheat field data under water and salt stresses. For this purpose, a field experimental was conducted with three salinity levels of irrigation water in...
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Ferdowsi University of Mashhad
2014-11-01
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doaj-30f1414690ce47e3bc021dee70094b632021-06-02T18:28:54ZfasFerdowsi University of Mashhadمجله آب و خاک2008-47572423-396X2014-11-0128348149110.22067/jsw.v0i0.207457791Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat)V. Rezaverdinejad0M. Hemmati1H. Ahmadi2A. Shahidi3B. Ababaei4Urmia UniversityUrmia UniversityUrmia UniversityUniversity of BirjandIslamic Azad University, TehranIn this study, the FAO agro-hydrological model was investigated and evaluated to predict of yield production, soil water and solute balance by winter wheat field data under water and salt stresses. For this purpose, a field experimental was conducted with three salinity levels of irrigation water include: S1, S2 and S3 corresponding to 1.4, 4.5 and 9.6 dS/m, respectively, and four irrigation depth levels include: I1, I2, I3 and I4 corresponding to 50, 75, 100 and 125% of crop water requirement, respectively, for two varieties of winter wheat: Roshan and Ghods, with three replications in an experimental farm of Birjand University for 1384-85 period. Based on results, the mean relative error of the model in yield prediction for Roshan and Ghods were obtained 9.2 and 26.1%, respectively. The maximum error of yield prediction in both of the Roshan and Ghods varieties, were obtained for S1I1, S2I1 and S3I1 treatments. The relative error of Roshan yield prediction for S1I1, S2I1 and S3I1 were calculated 20.0, 28.1 and 26.6%, respectively and for Ghods variety were calculated 61, 94.5 and 99.9%, respectively, that indicated a significant over estimate error under higher water stress. The mean relative error of model for all treatments, in prediction of soil water depletion and electrical conductivity of soil saturation extract, were calculated 7.1 and 5.8%, respectively, that indicated proper accuracy of model in prediction of soil water content and soil salinity.http://jsw.um.ac.ir/index.php/jsw/article/view/20745EvapotranspirationWater StressSalt StressSimulation Model |
collection |
DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
V. Rezaverdinejad M. Hemmati H. Ahmadi A. Shahidi B. Ababaei |
spellingShingle |
V. Rezaverdinejad M. Hemmati H. Ahmadi A. Shahidi B. Ababaei Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) مجله آب و خاک Evapotranspiration Water Stress Salt Stress Simulation Model |
author_facet |
V. Rezaverdinejad M. Hemmati H. Ahmadi A. Shahidi B. Ababaei |
author_sort |
V. Rezaverdinejad |
title |
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) |
title_short |
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) |
title_full |
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) |
title_fullStr |
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) |
title_full_unstemmed |
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat) |
title_sort |
performance evaluation of fao model for prediction of yield production, soil water and solute balance under environmental stresses (case study winter wheat) |
publisher |
Ferdowsi University of Mashhad |
series |
مجله آب و خاک |
issn |
2008-4757 2423-396X |
publishDate |
2014-11-01 |
description |
In this study, the FAO agro-hydrological model was investigated and evaluated to predict of yield production, soil water and solute balance by winter wheat field data under water and salt stresses. For this purpose, a field experimental was conducted with three salinity levels of irrigation water include: S1, S2 and S3 corresponding to 1.4, 4.5 and 9.6 dS/m, respectively, and four irrigation depth levels include: I1, I2, I3 and I4 corresponding to 50, 75, 100 and 125% of crop water requirement, respectively, for two varieties of winter wheat: Roshan and Ghods, with three replications in an experimental farm of Birjand University for 1384-85 period. Based on results, the mean relative error of the model in yield prediction for Roshan and Ghods were obtained 9.2 and 26.1%, respectively. The maximum error of yield prediction in both of the Roshan and Ghods varieties, were obtained for S1I1, S2I1 and S3I1 treatments. The relative error of Roshan yield prediction for S1I1, S2I1 and S3I1 were calculated 20.0, 28.1 and 26.6%, respectively and for Ghods variety were calculated 61, 94.5 and 99.9%, respectively, that indicated a significant over estimate error under higher water stress. The mean relative error of model for all treatments, in prediction of soil water depletion and electrical conductivity of soil saturation extract, were calculated 7.1 and 5.8%, respectively, that indicated proper accuracy of model in prediction of soil water content and soil salinity. |
topic |
Evapotranspiration Water Stress Salt Stress Simulation Model |
url |
http://jsw.um.ac.ir/index.php/jsw/article/view/20745 |
work_keys_str_mv |
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