Variations of Ni, Cr and Mn Concentration in Soils Formed Along a Toposequence of Ultrabasic Rocks in Western Mashhad
Introduction: Parent materials as one of the main soil formation factors have a great impact on the concentration of heavy metals in klaire labs ashwagandha the soil.Heavy metals are released to the soil during weathering and pedogenic processes.Ultrabasic rocks are known as the potential natural source of heavy metals, especially Ni, Cr and Mn in