“…Some of them indicate that their views rest on a sole case of the study area and are not meant to draw any general conclusion (El‐Agha et al, 2011; Moghazy et al, 2014; Osman, Bakeer, et al, 2016). Others attempt to capture a larger picture and reflect on the overall situation of areas developed under irrigation improvement programmes (Depeweg & Bekheit, 1997; Elshorbagy, 2000; Abou Kheira, 2009; Water Management Research Institute, 2009; Kotb & Boissevain, 2012; Dutta, 2013; Mostafa & Fujimoto, 2015; Awwad et al, 2016; Molle et al, 2016). Although the results of the assessments have not yet brought a consistent conclusion on the changes in efficiency and performance, Fuglie et al (2020) found in their study that “raising productivity of natural resources, rather than resource expansion, was of far greater importance to long‐run growth in the nation's food supply” (Fuglie et al, 2020).…”