Full Length Research Paper
ABSTRACT
This study was conducted in order to evaluate the performance of potato crop in two major irrigation schemes situated in the Northeast of Algeria. This area is characterized by alluvial soil texture, very fine clay, a very flat topography, and a typical Mediterranean climate. This was done to guide farmers on any changes to their crop management to improve the yields of potato crops. The model SUBSTOR-potato (Decision Support System for Agrotechnology Transfer, DSSAT 4.5) was calibrated and validated for two cropping seasons 2008-2009 and 2009-2010, in order to estimate yields. The calibration of the model required the combination of genetic coefficients that characterize the phenology and morphology of this culture. The model performance was evaluated from statistical coefficients (R², root mean square error (RMSE), and BIAS). The results appear to be satisfactory (R²=0.715, RMSE=34.52 qx/ha, BIAS=-7.34). The observed yield is 254.33 qx/ha and the estimated one is 238.77 qx/ha. There is a positive impact of climate change generated by the model weatherman on yields of potato particular for 2050. This indicates the model using possibility because it improves the results of farmer’s strategies over multiple years.
Key words: SUBSTOR-potato, calibration, simulation, statistical coefficients, Algeria.
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
CONCLUSION
CONFLICT OF INTERESTS
REFERENCES
Abdrabbo MAA, Khalil AA, Hassanien MKK, Abou-Hadid AF (2010). Sensitivity of potato yield to climate change. J. Appl. Sci. Res. 6:751-755. |
|
Daccache A, Weatherhead EK, Stalham MA, Knox JW (2011). Impact of climate on irrigated potato production in a humid climate. Agric. For. Meteorol. 151:1641-1653. |
|
FAO (2006). Climwat 2.0 for CROPWAT. FAO Irrigation and Drainage Paper 49. |
|
Giorgi F (2006). Climate changes hot-spots, Geophys. Res. Lett. 33:L08707. |
|
Hoogenboom G (2003). Decision Support System for Agrotechnology Transfer Version 4.0, volume 1: Overview. International consortium for Agricultural Systems Applications, University of Hawai. |
|
Hunt LA, Pararajasingham S, Jones JW, Hoogenboom G, Imamura DT, Ogoshi RM (1993). GENCLAC: Software to facilate the use of crop models for analyzing field experiments. Agron. J. 85:1090-1094. |
|
Kundzewicz ZW, Mata LJ, Arnell NW, Döll P, Jimenez B, Miller K, Okii T, Åžen Z, Shiklomanov I (2008). The implications of projected climate change for freshwater resources and their management. Hydrol. Sci. J. 53:3-10. |
|
Guemraoui M, Chabaca MN (2005). Gestion des grands périmètres d'irrigation: l'expérience algérienne. Mohamed Salah Bachta. Les instruments économiques et la modernisation des périmètres irrigués, Kairouan, Tunisie. Cirad, 14p. < Cirad-00193633> |
|
MADR (2010). Ministry of Agriculture and rural development. Statistiques agricoles de 2002 à 2010. M.A.D.R., Alger. |
|
Medany M (2006). Assessment of the impact of climate change on adaptation on potato production. Agricultural Research Center. Final Report. |
|
ONID (2010). Office Nationale de l'Irrigation et du Drainage. Evolution des superficies irriguées des périmètres d'irrigation. O.N.I.D., Alger. |
|
Pereira AB, Nilson Augusto VN, Ramos VJ, Pereira AR (2008). Potato potential yield based on climatic elements and cultivar characteristics. Bragantia Campinas 67:327-334. |
|
Ritchie J (1998). Soil water balance and plant water stress. In Understanding options of agricultural production, eds. Dordrecht, The Netherlands: Kluwer Academic Publishers and International Consortium for Agricultural Systems Applications pp. 41-53. |
|
Ritchie J, Griffin TS, Johnson BS (1995). SUBSTOR Functional model of potato growth, development, and yield. In Modeling and parameterization of the soil-plant-Atmosphere System: A comparison of potato Growth Models, pp. 401-434. |
|
Stastna M, Toman F, Dufková J (2010). Usage of SUBSTOR model in potato yield prediction. Agric. Water Manage. 97:286-290. |
|
Tanasijevic L, Todorovic M, Pereira LS, Pizzigalli C, Lionello P (2014). Impacts of climate change on olive crop evapotranspiration and irrigation requirements in the Mediterranean region. Agric. Water Manage. 144:54-68. |
Copyright © 2024 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0