Evaluating AquaCrop Model for Winter Wheat under Various Irrigation Conditions in Turkey

Farming winter wheat in Central Anatolia of Turkey traditionally is rainfed. Crop yields are frequently affected in this region because of the drought events of varying severity. There is apparent necessary for an aim appraisal of the effect of dryness on this critical crop, to answer the contradiction whether irrigation is essential or not. For this reason the FAOAquaCrop (Ver.5.0) crop water productivity model was preferred to predict attainable yields of winter wheat (Triticum durum L.) under four different irrigation regimes. Field experiment was conducted under four different irrigation treatments in Central Anatolia Region of Turkey during 2008-2010. The AquaCrop was calibrated with 2008-2009 field data and model validation was performed using 2009-2010 data. Model simulation results showed that model simulates soil water content in root zone (SWC), canopy cover (CC), grain yield (GY) and aboveground biomass (BM) of wheat reasonably well. The average root mean square error (RMSE) between simulated and observed SWC, CC, GY and BM were 21.1 mm, 7.1%, 0.32 t ha-1 and 0.34 t ha-1. Nash-Sutcliffe efficiency (EF) and index of Willmott (d) also were obtained 0.89 and 0.98 for CC, 0.74 and 0.93 for SWC, 0.98 and 0.92 for BM, 0.95 and 0.82 for GY. Model predicted canopy cover, grain yields and biomass with high accuracy while soil water content at 90 cm soil depth was estimated in the moderate accuracy. The results presented that AquaCrop model can be suggested as a convenient model for decisionmaking whether irrigating wheat is in the priority or not at the limited water resources areas. A

Keywords:

quaCrop; Grain yield; Irrigation; Canopy cover,

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Ahmadi S H, Mosallaeepour E, Kamgar A A, Ali H & Sepaskhah R (2015). Modeling maize yield and soil water content with AquaCrop under full and deficit irrigation managements. Water Resources Management 29: 2837-2853
Allen R G, Pereira L S, Raes D & Smith M (1998). Crop evapotranspiration guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper, No: 56, pp. 89-93
Altın T B, Barak B & Altın B N (2012). Change in precipitation and temperature amounts over three decades in central Anatolia Turkey. Atmosphere and Climate Science 2: 107-125
Amoah L K, Darko R O & Owusu-Sekyere J D (2013). Calibration and validation of Aqua crop for full and deficit irrigation of hot pepper. Journal of Agriculture and Biological Science 8(2): 175-178
Andarzian B, Bannayan M, Steduto P, Mazraeh H, Barati M E, Barati M A & Rah-nama A (2011). Validation and testing of the AquaCrop model under full anddeficit irrigated wheat production in Iran. Agricultural Water Management 100: 1-8
Araya A, Habtu S, Hadgu K M, Kebede A & Dejene T (2010). Test of AquaCrop model in simulating biomass and yield of water deficient and irrigated barley (Hordeum vulgare). Agricultural Water Management 97: 1838-1846
Farahani H J, Izzi G & Oweis T (2009). Parameterization and evaluation of the AquaCrop model for full and deficit irrigated cotton. Agronomy Journal 101: 469-476
Geerts S & Raes D (2009). Deficit irrigation as an on-farm strategy to maximize crop water productivity in dry areas. Agricultural Water Management 96: 1275-1284
Guevara-Escobar A, Tellez J & Gonzalez-Sosa E (2005). Use of digital photography for analysis of canopy closure. Agroforestry Systems 65(3): 175-185
Heng L K, Asseng S, Mejahed K & Rusan M (2007). Optimizing wheat productivity in two rainfed environments of the west Asia-North Africa region using a simulation model. European Journal Agronomy 26: 121-129
Heng L K, Hsiao T C, Evett S, Howell T & Steduto P (2009). Validating the FAO AquaCrop model for irrigated and water deficient field maize. Agronomy Journal 101(3): 488-498
Hsiao T C, Heng L K, Steduto P, Rojas-Lara B, Raes D & Fereres E (2009). AquaCrop-the FAO crop model to simulate yield response to water: III. Parameterization and testing for maize. Agronomy Journal 101: 448-459
Hussein F, Janat M & Yakoub A (2011). Simulating cotton yield response to deficit irrigation with the FAO AquaCrop model. Spanish Journal of Agricultural Research 9: 1319-1330
Iqbal M A, Shen Y, Stricevic R, Pei H, Sun H, Amiri E, Penas A & Rio S (2014). Evaluation of the FAO AquaCrop model for winter wheat on the North China Plain under deficit irrigation from field experiment to regional yield simulation. Agricultural Water Management 135: 61-72
Jacovides C P & Kontoyiannis H (1995). Statistical procedures for the evaluation of evapotranspiration computing models. Agricultural Water Management 27: 365-371
Jamieson P D, Porter J R & Wilson D R (1991). A test of the computer simulation model ARC-WHEAT1 on wheat crops grown in New Zealand. Field Crop Research 27: 337-350
Laliberte A S, Rango A, Havstad K M, Paris J F, Beck R F, McNeely R & Gonzalez A L (2004). Object-oriented image analysis for mapping shrub encroachment from 1937 to 2003 in southern New Mexico. Remote Sensing of Environment 93: 198-210
Lee K & Lee B W (2011). Estimating canopy cover from color digital camera image of rice. Journal of Crop Science Biotechnology 14(2): 151-155
Levidow L, Pimbert M & Vanloqueren G (2014). Agroecological research: Conforming or transforming the dominant agro-food regime. Agroecology and Sustainable Food Systems 38(10): 1127-1155
Mohammadi M, Ghahraman B, Davary K, Ansari H, Shahidi A & Bannayan M (2016). Nested validation of AquaCrop model for simulation of winter wheat grain yield soil moisture and salinity profiles under simultaneous salinity and water stress. Irrigation and Drainage 65: 112-128
Musick J T, Jones O R, Stewart B A & Dusek D A (1994). Water-yield relationships for irrigated and dryland wheat in the US Southern Plains. Agronomy Journal 86: 980-986
Nash J E & Sutcliffe J V (1970). River flow forecasting through conceptual models Part I: A discussion of principles. Journal of Hydrology 10: 282-290
Raes D, Steduto P, Hsiao T C & Fereres E (2009). AquaCrop-the FAO crop model to simulate yield response to water: II. Main algorithms and software description. Agronomy Journal 101: 438-447
Raes D, Steduto P, Hsiao T C & Fereres E (2012). FAO crop-water productivity model to simulate yield response to water. AquaCrop Version 4.0 Reference Manual FAO Land and Water Division Publication Rome Italy
Sezen S M & Yazar A (2008). The global warming impact on wheat yield in the Mediterranean climate using the Ceres-Wheat model. Agricultural Drought Assessing Monitoring and Damages Mitigation Turkish-Israel Joint Project Final Conference, 16-27 June, İzmir, Turkey, pp. 28-30
Steduto P, Raes D, Hsiao T C, Fereres E, Heng L, Izzi G & Hoogeveen J (2008). AquaCrop: A new model for crop prediction under water deficit conditions. Options Méditterranean Series A 80: 287
Steduto P, Hsiao T C, Raes D & Fereres E (2009). AquaCrop-the FAO crop model to simulate yield response to water: I. Concepts and underlying principles. Agronomy Journal 101(3): 426-437
Steduto P, Hsiao T C, Fereres E & Raes D (2012). Crop yield response to water. FAO Irrigation and Drainage Paper, No: 66 Rome, Italy, pp. 516
Steven R E & Tolk J A (2009). Introduction: Can water use efficiency be modeled well enough to impact crop management? Agronomy Journal 101: 423-425
Tatar D & Yazgan S (2002). Determination of effects of temperature increase and different water application levels on wheat growth by crop growth simulation modeling. Atatürk University Journal of the Faculty of Agriculture 33(4): 369-374
Tavakoli A R, Moghadam M M & Sepaskhah A R (2015). Evaluation of the AquaCrop model for barley production under deficit irrigation and rainfed condition in Iran. Agricultural Water Management 16: 136-146
Todorovic M, Albrizio R, Zivotic L, Saab M T, Stöckle C & Steduto P (2009). Assessment of AquaCrop CropSyst and WOFOST models in the simulation of sunflower growth under different water regimes. Agronomy Journal 101(3): 509-521
Toumi J, Er-Raki S, Ezzahar J, Khabba S, Jarlan L & Chehbouni A (2016). Performance assessment of AquaCrop model for estimating evapotranspiration soil water content and grain yield of winter wheat in Tensift Al Haouz (Morocco): Application to irrigation management. Agricultural Water Management 163: 219-235
Trombetta A, Iacobellis V, Tarantino E & Gentile F (2016). Calibration of the AquaCrop model for winter wheat using MODIS LAI images. Agricultural Water Management 164: 304-316
Vanuytrecht E, Raes D, Steduto P, Hsiao T C, Fereres E, Heng L K, Vila M G & Moreno P M (2014). AquaCrop: FAO’s crop water productivity and yield response model. Environmental Model Software 62: 351-360
Willmott C J (1982). Some comments on the evaluation of model performance. Bulletin of American Meteorology Society 63: 1309-1313
Zeleke K T, Luckett D & Cowley R (2011). Calibration and testing of the FAO AquaCrop model for canola. Agronomy Journal 103: 1610-1618
Zhang H & Oweis T (1999). Water yield relations and optimal irrigation scheduling of wheat in the Mediterranean region. Agricultural Water Management 38: 195-211