 Yield response of sunflower to irrigation and fertilization under semi-arid conditionsJ. García-López, I.J. Lorite, R. García-Ruiz, R. Ordoñez and J. Dominguez Agricultural Water Management, 2016, vol. 176, issue C, 151-162 Abstract: Until recently, irrigation of traditionally rainfed crops such as sunflower in the semi-arid regions of southern Spain was limited to supplementary irrigation given the very limited water supply. This was primarily due to a poor understanding of the irrigation management of this crop. However, thanks to irrigation and N-fertilization research carried out between 2012 and 2014 in southern Spain, functions of sunflower yield response to irrigation and N-fertilization have been determined, thus identifying the optimal irrigation and fertilization scheduling to optimize both yield and water productivity. The study found that irrigation volumes of around 60–80% of the optimum and N-fertilization doses of around 100 and 150 units of N, depending on if stressed or non-stressed conditions were found, provided the maximum yield. Keywords: Irrigation management; Water requirements; Sunflower; Nfertilization; Nitrogen nutrition index (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:176:y:2016:i:c:p:151-162 DOI: 10.1016/j.agwat.2016.05.020 Access Statistics for this article Agricultural Water Management is currently edited by B.E. Clothier, W. Dierickx, J. Oster and D. Wichelns More articles in Agricultural Water Management from Elsevier |
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