Effect of petrochemical mill wastewater on agronomical and chemical characteristical of wheat in Bojnourd area

in order to study wastewater effect of bojnourd petrochemical mill on wheat quality and quantity on 2008 growing season, the test is accomplished like greenhouse and in completely randomized design in 5treatment and 3 replicates. The used treatment for irrigation were: (T1) undiluted wastewater. (T2) 75% wastewater and 25% well water. (T3) 50% wastewater and 50% well water. (T4) 25% wastewater and 75% well water.These result showed that use of wastewater in irrigation had important effect on value of wheat N, wheat protein and wheat opration, that if rate of wastewater increase from treatment 5 to 1, that the value of wheat N, wheat protein and wheat opration will increase. Although weight of seed, weight of root, weight of shoots and height of stem in final growth increased, but this diversity was not meaning statistically.The result showed that the wastewater can be used as a water source for irrigation. however, irrigation with wastewater has not baneful effect on wheat.