Composted municipal waste effect on chosen properties of calcareous soil
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1
Department of Soil Science, Vali-e-Asr University of Rafsanjan, Iran, P.O Box 518, Rafsanjan, Iran
2
Department of Soil Science, Isfahan University of Technology, Iran, P.O Box 84154, Isfahan, Iran
3
Department of Research and Development, Institute of Environmental Technology and Sustainable Development, P.O.Box 34073, 5309, Paralimni, Cyprus
4
SC European Focus Consulting srl, Banatului 16, Bacau, 600 276, Romania
Int. Agrophys. 2012, 26(4): 365-374
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ABSTRACT
A 3-year field study was conducted to assess effects of composted municipal waste on some properties, distribution of Zn, Cu in a calcareous soil and uptake of these metals by wheat. The treatments were 0, 25, 50 and 100 Mg ha-1 of municipal solidwastewhichwas applied in three consecutive years. The application of composted municipal waste increased the saturated hydraulic conductivity, the aggregate stability,the organic carbon content and electrical conductivity, whereas it slightly decreased the soil pH and bulk density. A significant increase in the concentration of Zn and Cu were observed with increasing number and rate of compost application. The distribution of Zn and Cu between the different fractions in untreated and treated soils showed that the majority of Zn and Cu were in the residual form. Finally, the levels of Zn and Cu were higher in grains of wheat grown in composttreated plots compared to that grown in the control plots.