 Does water salinity affect pepper plant response to nitrogen fertigation?Hagai Yasuor, Guy Tamir, Avraham Stein, Shabtai Cohen, Asher Bar-Tal, Alon Ben-Gal and Uri Yermiyahu Agricultural Water Management, 2017, vol. 191, issue C, 57-66 Abstract: Recent increase in demand for agricultural products combined with scarcity of fresh water has motivated increased use of non-conventional water sources for irrigation. Application of water varying in quality dictates adjustment of nitrogen (N) management. The response of bell pepper to a range of different concentrations of N and salinity (NaCl) was evaluated in soilless and field experiments under greenhouse conditions. Pepper plant biomass and yield increased with N and decreased with salinity. Chloride accumulated mainly in the stems and the fraction of Cl in leaves increased as a function of increased exposure to salinity. Increasing N application resulted in reduced Cl uptake and accumulation in pepper organs, including leaves and petioles. Although N significantly reduced Cl content and concentration in leaves and petioles it did not compensate for the negative effects of increasing salinity. This indicates that salinity itself and not Cl − N competition was the limiting factor affecting growth and yield. Keywords: Chloride; Nitrate; Nitrogen uptake; Mineral distribution; Mineral nutrition (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:191:y:2017:i:c:p:57-66 DOI: 10.1016/j.agwat.2017.05.012 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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