Effects of Leonardite Material on Soil Metal Fractions and Plant Growth in Soil Contaminated with Cadmium

In this experiment, the effects of Leonardite (LEO) material applied to soil contaminated with Cadmium (Cd) metal on the soil metal fractions, and its effects on the growth and metal concentration of Corn plant were studied.Regarding the Cd applications to the soil, the Cd content of the plant increased and the dry matter yield decreased significantly.In LEO applications, higher Cd values were determined in the organic bound fraction.LEO applied to the soil significantly decreased mobility factor of Cd , Cd concentration of the plant and the metal transfer factor.The amount of plant dry matter was determined relatively higher in LEO applications.The findings show that LEO material can be used as an alternative soil conditioner and environmental improvement material to support plant growth in soils contaminated with heavy metals.