Volume 6, Number 3 (fall 2002)                   JWSS 2002, 6(3): 141-149 | Back to browse issues page

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A. H. Khoshgoftarmanesh, M. Kalbasi. Effects of Residual Processed Municipal Waste Leachate on Soil Properties, and Wheat Growth and Yield. JWSS. 2002; 6 (3) :141-149
URL: http://jstnar.iut.ac.ir/article-1-219-en.html

Abstract:   (19812 Views)
During 1998-99, a field experiment was conducted to investigate the effects of residual Processed Municipal Waste Leachate (PMWL) on growth and yield of wheat (variety Roshan). The treatments consisted of residual amounts of 0, 150, 300 and 600 t/ha of PMWL and a residual N, P, K, and Zn fertilizer treatment in a randomized block design with 3 replications. In 1998, rice seedlings were transferred to 34 m plots. After harvesting the rice, wheat was seeded in the same plots without any new treatment. Processed municipal waste leachate and fertilizers were applied during the rice growth. Residual effects of PMWL increased the amounts of available macro- (N, P and K) and micronutrients (Fe, Cu, Zn and Mn) in soil which, in turn, promoted the grain and straw yield of wheat compared to the control. Straw and grain yield increased from 1.67 and 3.50 t/ha in control to 3.93 and 12.80 t/ha in 600 t/ha of PMWL, respectively. The residual effects of PMWL had no significant effect on heavy metals concentrations in plant. The effects of residual PMWL in the soil were proportional to the amount of leachate applied. However, more investigations are recommended to fully understand heavy metals effects on soil, plant, and environment.
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Type of Study: Research | Subject: Ggeneral
Received: 2008/01/9

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