Volume 10, Issue 3 (fall 2006)                   JCPP 2006, 10(3): 97-111 | Back to browse issues page


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M. A. Nazari, H. Shariatmadari, M. Afyuni, M. Mobli, Sh. Rahili. Effect of Industrial Sewage-Sludge and Effluents Application on Concentration of Some Elements and Dry Matter Yield of Wheat, Barley and Corn. JCPP. 2006; 10 (3) :97-111
URL: http://jcpp.iut.ac.ir/article-1-569-en.html

Abstract:   (19283 Views)
Sewage sludge and effluents, as cheap sources of irrigation water and fertilizer, can supply plants with water and nutrients however, contamination of these sources with heavy metals and the possibility of human food chain contamination using these sources should be considered. In this research, the effects of industrial sewage sludge and effluents on concentration of some nurtients, heavy metals and sodium and dry matter yield of wheat (Triticum aestivum), barley (Hordeum vulgare) and corn (Zea mays) were investigated. The experiment was carried out in a greenhouse using a complete randomized design with four replication. The treatments comprised well water, well water + sewage sludge(50 tons/ha), and three industrial effluents from Iran Polyacryl factory including the cooling tower, the over flow and the factory outlet effluents. Chemical analysis showed the following results: The concentration of the elements in the sludge and the effluents were below the critical contaminating levels. The application of the treatments did not supply enough nitrogen for corn the cooling tower effluent could not supply enough nitrogen for wheat and barley all the treatments supplied enough P for wheat. None of the treatments could supply enough P for corn. The cooling tower, over flow and the factory outlet effluents could not supply enough P for barley, the micronutrient and heavy metal concentrations in the plant tissues using the effluents and the sewage sludge were higher than those for well water the dry matter yield of plants’roots and shoots was highest using well water + sludge and in comparison with the well water, effluents could increase the shoot dry matter yield.
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Type of Study: Research | Subject: General

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