Saline reclaimed wastewater can be used to produce potted weeping fig (Ficus benjamina L.) with minimal effects on plant quality
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AuthorValdés Illán, Raquel; Miralles, J.R.; Ochoa Rego, Jesús; Sánchez Blanco, María Jesús; Bañón Arias, Sebastián del Pilar
Knowledge AreaProducción Vegetal
SponsorsMinisterio de Economía y Competitividad and the FEDER through the projects AGL2011-30022-C02-1 and AGL2011-30022-C02-2 and SENECA project 08669/PI/08
PublisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
Bibliographic CitationValdés, R., Miralles, J.R., Ochoa, J., Sánchez-Blanco, M.J., Bañón, S. 2012. Saline reclaimed wastewater can be used to produce potted weeping fig with minimal effects on plant quality. Spanish Journal of Agricultural Research 10(4):1167-1175.
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The objective of the present study was to investigate the limitations of irrigation with saline reclaimed wastewater (RW) for producing potted weeping fig (Ficus benjamina L.). Furthermore, two different levels of leaching were studied to ascertain whether either reduces the negative effects of RW. Three irrigation treatments were applied: a) well water (control), b) RW (5 dS m–1) with a constant leaching fraction of 23% (RWL), and c) RW (5 dS m–1) with a constant leaching fraction of 15% and 50% flushing every nine irrigation events (RWF). After five months of exposure to the RW, plant size, leaf area, specific leaf area, plant DW, stem diameter and shoot/root ratio were reduced, but both compactness and the appearance of the plants remained high. RWF reduced leaf area, plant dry weight, stem diameter, leaf lightness, leaf chroma and leaf SPAD compared with the RWL. Water consumption per pot was higher in control (50.58 L), followed by RWL (24.29 L) and RWF (19.6 L). Photosynthesis ...
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