EFFECT OF SULFUR APPLICATION ON SPINACH PHYTOREMEDIATION PROCESS OF CADMIUM IN CONTAMINATED CALCAREOUS SOILS

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KASRAEIAN ALI; KARIMIAN NAJAFALI; PAZIRA EBRAHIM

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Journal: WATER AND WASTEWATER Year:2012 | Volume:23 | Issue:2 (82) Page(s): 52-58

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Title

EFFECT OF SULFUR APPLICATION ON SPINACH PHYTOREMEDIATION PROCESS OF CADMIUM IN CONTAMINATED CALCAREOUS SOILS

Author(s)

KASRAEIAN ALI | KARIMIAN NAJAFALI | PAZIRA EBRAHIM | Issue Writer Certificate

Keywords

CADMIUMQ2

SULFURQ3

PHYTOREMEDIATIONQ2

SPINACHQ3

CALCAREOUS SOILSQ3

Abstract

Recently, CADMIUM (Cd) concentration has increased in croplands through sewage sludge and phosphorous fertilizers application. On the other hand, some special methods, like PHYTOREMEDIATION, were introduced in order to decrease soil contamination hazard. Calcium carbonate plays an important role in Cd solubility in highly CALCAREOUS SOILS. SULFURs oxidation, by dissolving Cd carbonate fraction, may improve PHYTOREMEDIATION efficiency. An experiment was conducted to study the effects of S application (equivalent to 0, 2, 4 and 6 Mg S ha-1) on Diethylene Triamine Pentaacetic Acid (DTPA) extractable Cd and also on Cd uptake and extraction by SPINACH (Spinacea oleracea L.) in CALCAREOUS SOILS which were contaminated by 40mg Cd kg-1. To ensure biological S oxidation, all S-treated samples were inoculated by Thiobacillus spp. and incubated for 50 days. The soil pH, EC and soluble sulfate were affected by S application and it clearly showed that S oxidation process was occurred in Cd treated soils. The most significant change for pH and sulfate were observed at 4 Mg S ha-1 and for electrical conductivity (EC) of soil it occurred at 6 Mg S ha-1. Application of S had no effect on DTPA extractable Cd in soils whereas; its concentration increased 73.55% in average in plant tissue. Plant dry matter decreased significantly (about 63 percent) following Cd application. Although the highest rate of S oxidation was observed at 4 and 6 Mg S ha-1 the maximum Cd extraction (2.5mg Cd pot-1) was observed at 2 Mg S ha-1. This may be due to adverse effect of Cd toxicity and increase of soluble salt resulted by S oxidation in higher level of S application.

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APA: Copy

KASRAEIAN, ALI, KARIMIAN, NAJAFALI, & PAZIRA, EBRAHIM. (2012). EFFECT OF SULFUR APPLICATION ON SPINACH PHYTOREMEDIATION PROCESS OF CADMIUM IN CONTAMINATED CALCAREOUS SOILS. WATER AND WASTEWATER, 23(2 (82)), 52-58. SID. https://sid.ir/paper/103489/en

Vancouver: Copy

KASRAEIAN ALI, KARIMIAN NAJAFALI, PAZIRA EBRAHIM. EFFECT OF SULFUR APPLICATION ON SPINACH PHYTOREMEDIATION PROCESS OF CADMIUM IN CONTAMINATED CALCAREOUS SOILS. WATER AND WASTEWATER[Internet]. 2012;23(2 (82)):52-58. Available from: https://sid.ir/paper/103489/en

IEEE: Copy

ALI KASRAEIAN, NAJAFALI KARIMIAN, and EBRAHIM PAZIRA, “EFFECT OF SULFUR APPLICATION ON SPINACH PHYTOREMEDIATION PROCESS OF CADMIUM IN CONTAMINATED CALCAREOUS SOILS,” WATER AND WASTEWATER, vol. 23, no. 2 (82), pp. 52–58, 2012, [Online]. Available: https://sid.ir/paper/103489/en

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