TY  - JOUR
T1  - Contaminant Source as Factor of Soil Heavy Metal Toxicity and Bioavailabilty to Plants
AU - , Olayinka I. Nwachukwu 
JO  - Environmental Research Journal
VL  - 2
IS  - 6
SP  - 322
EP  - 326
PY  - 2008
DA  - 2001/08/19
SN  - 1994-5396
DO  - erj.2008.322.326
UR  - https://makhillpublications.co/view-article.php?doi=erj.2008.322.326
KW  - Heavy metal
KW  -source
KW  -mine waste
KW  -sewage sludge
KW  -bioavailability
AB  - Mine waste and sewage sludge treated soil were used as contaminants in a greenhouse pot experiment and the effect of the contaminants on ryegrass growth, soil metal levels and plant metal uptake was evaluated over a period of 16 weeks. Soils were amended with bone meal, compost, peat, coir or lime phosphate and amendments led to immobilization of Pb, Cu and Zn. Biomass yield was significantly reduced in contaminated soil, with greater reduction in mine waste contaminated soil. EDTA extractable soil metal and metal uptake by ryegrass was significantly higher in mine waste contaminated soil than in sewage sludge treated soil.
ER  -