Agricultural and Biological Sciences
8 years ago

Sewage sludge boosts growth but increases heavy metal accumulation in oilseed rape

Journal of Hunan University of Science & Technology
Effects of Cd /Pb interaction and amendment with sewage sludge on growth and accumulation of Cd and Pb by oilseed rape grown in contaminated soils
Yang Xiang

Paper Summary

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The researchers studied how adding sewage sludge to soil contaminated with cadmium (Cd) and lead (Pb) affected the growth and Cd/Pb accumulation in oilseed rape plants. They found that high Cd/Pb levels in soil slowed plant growth, but sewage sludge helped plants grow better. Both oilseed rape species accumulated more Cd and Pb in sewage sludge-amended soil. When Pb was present in Cd-contaminated soil, Cd accumulation in plant tissues increased. However, higher Cd levels in soil reduced Pb accumulation in plants.