Use Bottom Sediment to Agriculture-Effect on Plant and Heavy Metal Content in Soil

Removing bottom sediment from water reservoirs and rivers can, on the one hand, be an effective method to restore lakes, and on the other-be used for plant production, ensuring the recycling of nutrients. The aim of this research was to evaluate the possibilities of using various types of bottom sediment and its impact on heavy metal content in soil and plants. For this purpose, a pot experiment was carried out using white mustard (Sinapis alba) as a test plant. The total content of heavy metals (Cd, Cu, Zn, Pb) was determined in soil and plant. The addition of all types of bottom sediment increased heavy metal content in the soil. The results indicate that adding bottom sediment resulted in a significant increase in plant yield in comparison to the control. The highest yield as a result of direct effect was obtained for a combination with a 5% addition of dam sediment, while as a result of residual effect, the highest yield was achieved for a mixture with a 10% addition of pond sediment. The values of the transfer factor (TF = Cplant/Csoil) indicate a high accumulation of zinc and low accumulation of lead in the plant.

Automated summary

The study found that adding bottom sediment can significantly increase plant yield and heavy metal content in soil to a certain extent. Various types of bottom sediment additions can improve plant yield, but the effect is influenced by the proportion and type of sediment added.