ASSESSING THE EFFICIENCY OF ARTIFICIAL NEURAL NETWORK MODELS TO PREDICT WHEAT YIELD AND WATER PRODUCTIVITY BASED ON CLIMATIC DATA AND SEASONAL WATER-NITROGEN VARIABLES

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MONTAZER A.; AZADEGAN B.; SHAHRAKY M.

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Journal: IRANIAN WATER RESEARCH JOURNAL Year:2010 | Volume:3 | Issue:5 Page(s): 17-29

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Information Journal Paper

Title

ASSESSING THE EFFICIENCY OF ARTIFICIAL NEURAL NETWORK MODELS TO PREDICT WHEAT YIELD AND WATER PRODUCTIVITY BASED ON CLIMATIC DATA AND SEASONAL WATER-NITROGEN VARIABLES

Author(s)

MONTAZER A. | AZADEGAN B. | SHAHRAKY M. | Issue Writer Certificate

Keywords

ARTIFICIAL NEURAL NETWORKSQ1

NITROGENQ3

WEATHER DATAQ2

WATER PRODUCTIVITYQ2

WHEAT AND YIELDQ3

Abstract

Wheat yield and WATER PRODUCTIVITY are affected by water and NITROGEN fertilizer management and climatic data. The aim of the present study was to assess the efficiency of ARTIFICIAL NEURAL NETWORKS (ANNs) models in predicting winter wheat yields and WATER PRODUCTIVITY using climatic data and seasonal water-nitrogen variables. The calibration and verification of the proposed models were accomplished using data from field experiments carried out in three years. The models were evaluated using several statistical error and goodness-of-fit measures, including the coefficient of determination, root mean square error (RMSE), mean bias error (MBA), and standard error (STE). The applied ANNs models had desirable accuracy in estimating crop yields and WATER PRODUCTIVITY. ANN models consistently produced more accurate predictions than multiple linear regression models. The sensitivity analysis indicated that the productivity of wheat water has the highest level of sensitivity to the seasonal water use. The data generated here suggested that maximum and minimum wheat WATER PRODUCTIVITY would be achieved with about 272 and 490 mm seasonal water use, which were determined 1.55 and 0.81 kg m-3, respectively. The applied ANNs can provide the background for promoting the WATER PRODUCTIVITY for this strategic crop in different weather condition, and give us the possibility of the logical and economical use of water sources and NITROGEN and also programming the combined usage of both resources in the study area.

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APA: Copy

MONTAZER, A., AZADEGAN, B., & SHAHRAKY, M.. (2010). ASSESSING THE EFFICIENCY OF ARTIFICIAL NEURAL NETWORK MODELS TO PREDICT WHEAT YIELD AND WATER PRODUCTIVITY BASED ON CLIMATIC DATA AND SEASONAL WATER-NITROGEN VARIABLES. IRANIAN WATER RESEARCH JOURNAL, 3(5), 17-29. SID. https://sid.ir/paper/159834/en

Vancouver: Copy

MONTAZER A., AZADEGAN B., SHAHRAKY M.. ASSESSING THE EFFICIENCY OF ARTIFICIAL NEURAL NETWORK MODELS TO PREDICT WHEAT YIELD AND WATER PRODUCTIVITY BASED ON CLIMATIC DATA AND SEASONAL WATER-NITROGEN VARIABLES. IRANIAN WATER RESEARCH JOURNAL[Internet]. 2010;3(5):17-29. Available from: https://sid.ir/paper/159834/en

IEEE: Copy

A. MONTAZER, B. AZADEGAN, and M. SHAHRAKY, “ASSESSING THE EFFICIENCY OF ARTIFICIAL NEURAL NETWORK MODELS TO PREDICT WHEAT YIELD AND WATER PRODUCTIVITY BASED ON CLIMATIC DATA AND SEASONAL WATER-NITROGEN VARIABLES,” IRANIAN WATER RESEARCH JOURNAL, vol. 3, no. 5, pp. 17–29, 2010, [Online]. Available: https://sid.ir/paper/159834/en

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