 Reclaimed wastewater: Effects on citrus nutritionB.F.F. Pereira, Z.L. He, P.J. Stoffella and A.J. Melfi Agricultural Water Management, 2011, vol. 98, issue 12, 1828-1833 Abstract: The effects of irrigation with reclaimed wastewater (RWW) were compared with well water (WW) on citrus (Citrus paradisi Macfad. X Citrus aurantium L.) nutrition. The deviation from the optimum percentage (DOP) index of macro- and micro-nutrients were used to evaluate the nutritional status: optimal (DOP = 0), deficiency (DOP  0). After 11 years of RWW irrigation the influence on nutrient concentration in plants decreased in the order: B > Zn > Mn = Ca > Cu > Mg > P > K. Reclaimed wastewater irritation positively affected citrus nutrition as it rendered the concentration of macro-nutrients, i.e. P, Ca, and K. closer to their optimum levels ([Sigma]DOPmacro = 7). However micro-nutrients tended to be excessive in plants ([Sigma]DOPmicro = 753) due to imbalanced supply of these elements in the RWW, particularly, for B and Cu. Citrus groves with long-term RWW irrigation may exercised caution in monitoring concentrations of B and Cu to avoid plant toxicity and soil quality degradation. Keywords: Citrus; paradisi; Macro-nutrients; Micro-nutrients; Plant; nutrition; Wastewater; irrigation; Water; reuse (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:98:y:2011:i:12:p:1828-1833 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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