A Docor of Philosophy Disseration titled (Evaluation of the efficiency of some plant species and biological factors in the biological treatment of soil contaminated with copper oxychloride and copper sulfate) was discussed in Conference Hull at Faculty of Agriculture –University of Kufa on Wednesday 1/2/2023, for the Plant Protection Department’s Ph.D. student (Azhar Ennad Mahdi) under supervision of Professor Doctor (Sabah Latif Alwan). This study was aimed to find effective, eco-friendly methods to remove some toxic elements in soil and reduce the effect of these elements on plant and human health. The dissertation was accepted by the discussion committee and the results of the thesis were recommended and approved for future work.