Determination of optimal regulated deficit irrigation strategies for maize in a semi-arid environment
AbstractFor a certain overall deficit target, this paper develops a methodology (Optimized Regulated Deficit Irrigation (ORDI)) for determining the stress level (in terms of the rate between actual crop evapotranspiration (ETa) and maximum evapotranspiration (ETm)) that can be applied to each growth period for maximum yield. ORDI is based on the equation proposed by Stewart et al. (1977) and compatible with the MOPECO model. Once the equation is calibrated and validated, ORDI just requires adjusting the determining factors for optimization.
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Bibliographic InfoArticle provided by Elsevier in its journal Agricultural Water Management.
Volume (Year): 110 (2012)
Issue (Month): C ()
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Web page: http://www.elsevier.com/locate/agwat
Zea Mays L.; Water stress; MOPECO; Crop simulation; Water productivity;
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- Rodrigues, Gonçalo C. & Paredes, Paula & Gonçalves, José M. & Alves, Isabel & Pereira, Luis S., 2013. "Comparing sprinkler and drip irrigation systems for full and deficit irrigated maize using multicriteria analysis and simulation modelling: Ranking for water saving vs. farm economic returns," Agricultural Water Management, Elsevier, vol. 126(C), pages 85-96.
- Domínguez, A. & Martínez-Romero, A. & Leite, K.N. & Tarjuelo, J.M. & de Juan, J.A. & López-Urrea, R., 2013. "Combination of typical meteorological year with regulated deficit irrigation to improve the profitability of garlic growing in central spain," Agricultural Water Management, Elsevier, vol. 130(C), pages 154-167.
- Paredes, P. & Rodrigues, G.C. & Alves, I. & Pereira, L.S., 2014. "Partitioning evapotranspiration, yield prediction and economic returns of maize under various irrigation management strategies," Agricultural Water Management, Elsevier, vol. 135(C), pages 27-39.
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