Volume 20, Issue 75 (Spring 2016)                   jwss 2016, 20(75): 15-25 | Back to browse issues page

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Mollaei R, Abedi Koupai J, Eslamian S S. Effect of Zeolite on Cadmium Uptake By Spinach (Spinacia Oleares L.) in Wastewater Irrigation. jwss 2016; 20 (75) :15-25
URL: http://jstnar.iut.ac.ir/article-1-3272-en.html
1. Dept. of Water Eng., College of Agric., Isf. Univ. of Technol., Isfahan Iran. , koupai@cc.iut.ac.ir
Abstract:   (13613 Views)

Water scarcity forced farmers to use wastewater as water source, without considering its effects on environment and resultant contamination of soils and plants especially with heavy metals. The objectives of this study are to evaluate the application effects of zeolite as soil amendments on the uptake of Cd by spinach (Spinach Oleares L.) irrigated with wastewater (containing 10 ppm Cd). Different levels amounts of zeoilte (0, 1% and 5% w/w) were added to the soil and the experiment was conducted as a completely randomized design in a green house with 3 replications. The results indicated that, the addition of zeolite 1% (w/w) in soil treated with wastewater reduced cadmium concentration in plant, and consequently the percentage of extractable Cd using DTPA was decreased. However, application of zeolite 5% (w/w) increased the soil salinity, and as a result increased Cd concentration in the plant but this increase was not statistically significant, comparing with control. Spinach biomass did not differ significantly under irrigation with wastewater, but the Cd available in wastewater caused a decrease in Spinach biomass yield.

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Type of Study: Research | Subject: Ggeneral
Received: 2016/05/16 | Accepted: 2016/05/16 | Published: 2016/05/16

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