As high contaminant levels inhibit plant and microbial activity, therefore an effective phytoremediation is realized where contaminants are present at low to medium levels. Recent research have shown stunning effects with the amendments of biofertilizer and biosludge to the contaminated lands, plants were(Juwarkar et al., 2008). Nanda and Abraham (2011) have
evaluated the effect of As, Cr, Mg and Cu on some essential soil bacteria such as Azotobacter, Pseudomonas and Rhizobium. They found As to be the most toxic of all followed by Cr, Mg and Cu. The interaction between microorganisms, plant roots, and amendment might have a greater impact on both the increase of nutrient uptake and migration of metal uptake (Smith, 1994). As a result of plant root microbial inter-action, the migration of contaminants to ground water are reduced by immobilization. Establishment of a vege-tative cover on contaminated sites can retain contaminants in place, thus reducing their loss via erosion and percolation into the soil profile (Pulford andWatson , 2003). When revegetation of contaminated soil is combined with soil amendments, such as organic matter, the mobility of contaminants in the soil can be further reduced (Mench et al., 2000). able to grow and survive in extreme higher levels of heavy metal contamination