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Publication Type J
Authors Cunha, J. C., M. Freire, H. A. Ruiz and J. D. G. Silva
Title Phytoextraction Potential of Atriplex Nummularia Plants under Nitrogen and Phosphate Fertilization
Source Communications in Soil Science and Plant Analysis
Author Keywords Electrical conductivity halophyte phytoremediation sodicity sodium soils clay
Abstract The soil areas affected by salts have increased in recent years. Searching intensively for management and recovery strategies should help minimize these problems. Studies related to the response of halophytes to fertilization can provide important information regarding the most adequate management for phytoremediation. The aim of this study was to evaluate dry matter production and sodium extraction capacity of atriplex plants, in response to nitrogen doses, with and without phosphorus application. The experiment was carried out in a greenhouse at the Federal Rural University of Pernambuco (UFRPE), in Recife, Pernambuco, Brazil and was set up in a randomized block design, with four replicates, in a 2x5 factorial scheme (0 and 134mg dm(-3) of P and 0, 20, 40, 60, and 80mg dm(-3) of N). The addition of nitrogen (N) and improved sodium (Na) uptake increased Na contents by 4.1, 3.6, and 1.8 times, for P0, and by 4.0, 8.4, and 2.1, for P134, in leaves, stems, and roots, respectively. There was a decrease in Na both in the saturation-paste extract and in the exchange complex with the increase in N in soil. N supply potentiates Na extraction by Atriplex nummularia, being a feasible technique to recover saline soils through phytoremediation.
Author Address [Cunha, Jailson Cavalcante] Fed Univ Sao Francisco Valley, Postgrad Program Agr Engn, Antonio Carlos Magalhaes Ave 500, BR-48902300 Juazeiro, BA, Brazil. [Galvao dos Santos Freire, Maria Betania] Rural Fed Univ Pernambuco, Agron Dept UFRPE DEPA, Recife, PE, Brazil. [Ruiz, Hugo Alberto] Univ Fed Vicosa, Soil Dept, Vicosa, MG, Brazil. [Guimaraes Silva, Jhonatha David] Univ Fed Goias, Postgrad Program Vegetable Prod, Jatai, Brazil. Cunha, JC (reprint author), Fed Univ Sao Francisco Valley, Postgrad Program Agr Engn, Antonio Carlos Magalhaes Ave 500, BR-48902300 Juazeiro, BA, Brazil. jailson.c.c@gmail.com
ISSN 0010-3624
ISBN 0010-3624
29-Character Source Abbreviation Commun. Soil Sci. Plant Anal.
Year Published 2017
Volume 48
Issue 1
Beginning Page 20-36
Digital Object Identifier (DOI) 10.1080/00103624.2016.1253716
Unique Article Identifier WOS:000395167100003

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