THE EFFECT OF SOIL TREATMENT WITH HEAVY METALS ON THE CONCENTRATION OF CALCIUM, MAGNESIUM, CADMIUM, AND COPPER IN THE FENUGREEK AND SPINACH PLANTSHUSSEIN SABER MOHAMMED ALI AL-RASHEDY AND ANSAM AHMED SAADOON AL-HAMADANYAbstract This research was conducted with the aim of studying the effect of treating soil contaminated with cadmium metals with concentrations (3, 6, 9) and copper metals with concentrations (80, 150 and 180) mg/kg soil on Fenugreek (Trigonella foenum-graecum) and Spinach (Spinacia oleracea L.) plants. The results showed that treating the soil with Cd and Cu led to a significant decrease in the concentration of calcium and magnesium in the Spinach shoot, as it was found that treating the soil with cadmium at a concentration of 9 mg / kg soil led to a decrease in the concentration of calcium which reached (2,400) mg / g and that the soil treatment with copper at the concentration of (180) mg / g, the concentration of magnesium decreased to (1.440) mg / g. While there was a significant increase in the concentration of copper in the shoot and root of the Fenugreek plant when treating the soil with copper at the concentration (180) mg/kg soil, it reached (23,000) and (31,000) mg/kg. respectively, and there was an increase in the concentration of cadmium in the shoot of Spinach plants and Fenugreek when treating the soil with cadmium at the concentration (9) mg/kg soil, it reached (0,532) mg /kg in spinach and (0.662) mg /kg in the fenugreek plant compared to the comparison treatment. |