TY - JOUR JF - JSTNAR JO - JWSS VL - 6 IS - 3 PY - 2002 Y1 - 2002/10/01 TI - Effects of Residual Processed Municipal Waste Leachate on Soil Properties, and Wheat Growth and Yield TT - اثر باقی‌ مانده شیرابه زباله بر ویژگی‌های خاک و رشد عملکرد گندم N2 - 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. SP - 141 EP - 149 AU - A. H. Khoshgoftarmanesh, AU - M. Kalbasi, AD - KW - Municipal waste leachate KW - Residual effects KW - Yield of wheat UR - http://jstnar.iut.ac.ir/article-1-219-en.html ER -