Effect of Sewage Sludge on Phytoextraction of Heavy Metal by Wheat (Triticum aestivum L.)

Abstract

A pot experiment was conducted to study the effect of sewage sludge on phytoextraction of
heavy metal by wheat. The treatment consisted of sewage sludge @ 10, 20, 40 & 80 t ha-1, keeping
120:60:40 NPK as a standard application rate. It may be recommended that sewage sludge application
of 4 t/ha was safe but application of 80 t ha-1
sewage sludge increased heavy metals accumulation in
plant parts. However, the values were within permissible limits.