| Issue |
E3S Web of Conferences
Volume 1, 2013
Proceedings of the 16th International Conference on Heavy Metals in the Environment
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 4 | |
| Section | Heavy Metals in Soils I: Amended Soils | |
| DOI | https://doi.org/10.1051/e3sconf/20130104004 | |
| Published online | 23 April 2013 | |
Zinc fractionation in the rhizosphere of wheat (Triticum aestivum L.) plant in soils treated with sewage sludge
Soil Science Department, Faculty of Agriculture, Shahrekord University, P.O. Box 115, Shahrekord, Iran
a hosseinpura@agr.sku.ac.ir
b hrm_61@yahoo.com
Rhizosphere is a microbiosphere and has quite different chemical, physical and biological properties from bulk soils. A greenhouse experiment was performed to compare fractionation of Zinc (Zn) between rhizosphere and bulk soils amended with sewage sludge (1% w/w of sewage sludge to soil). Fractions of Zn were determined in two subsamples (rhizosphere and bulk soils). The results indicated concentration of Zn-fractions (except carbonates-associated) in the rhizosphere soils were significantly (p<0.05) different from concentrations of Zn-fractions in the bulk soils. Also, results revealed that significant correlation (p<0.05) between Zn associated with iron-manganese and yield and uptake indices in the rhizosphere and bulk soils were found. The results of this research illustrated that rhizosphere is a small zone but important environmental zone in soils with quite different properties.
Key words: Rhizosphere / Zinc / Fractionation technique
© Owned by the authors, published by EDP Sciences, 2013
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