Agropyron desertorum is the most important perennial grasses are semi-arid and temperate areas, which are recommended by natural resource experts to provide forage, pasture, soil stabilization and management of water resources. Awareness of the variation of rangeland species in different environmental conditions is one of the requirements for the reclamation, management and management of rangeland ecosystems. The aim of this study was to investigate effects of drought and contamination on the yield of Agropyron desertorum. The research on greenhouse was conducted in a factorial design based on copper oxide treatments at four levels (0, 25, 50 and 100 mg), copper Nano-oxid in 4 levels (0, 25, 50 and 100 mg) and polyethylene glycol 6000 (PEG6000) in three levels (0, -0.6 and -1/2 mpa) in 5 repeaters on Agropyron desertrorum was conducted in hydroponic greenhouses. The data measuring (biomass, shoot fresh weight, root fresh weight, during the shoot, root K, potassium shoot, chlorophyll a, chlorophyll b and all chlorophyll) by using SPSS.18 and Duncan test were analyzed. The analysis showed all the characteristics measured traits such Agropyron desertorum treated with copper oxide and copper Nano-oxid as well as their interactions in all treatments was significantly reduced compared to control. Agropyron desertorum estates in the areas where the soil has been Nano-oxid and oxides. Also, if the purpose of the cultivation of these species is provide forage for livestock in the affected areas, the cultivation of this species is not suitable and is not recommended.