Nitrogen Effects on Mobility and Plant Uptake of Heavy Metals in Sewage Sludge Applied to Soil Columns

摘要: Cation movement in soil under leaching conditions has been associated with N fertilization. Therefore, this study was conducted to determine whether the mobility of some heavy metals applied inorganic form or sewage sludge is enhanced presence various sources N. Columns metal-amended plastic well casings were cropped tall fescue (Festuca arundinacea Schreb.) and leached three times deionized H/sub 2/O. Heavy metal concentrations above check values not detected leachates from any column. Mobility slightly greater than that sludge. Nitrogen fertilization did affect downward Zn, Cd, Cr, Pb, Ni but uptake these by because increased growth. These results suggest contamination ground water likely textured soils when applications are accompanied fertilization, at least for short periods time. 11 references, 1 figure, 4 tables.