In this study, the facilities of agricultural usages of waste sludge that was provided from the Penguen Food Industry Foundation’s wastewater treatment plants was researched. For this reason, some of the analysis such as pH, EC, dry matter, organic matter, C:N ratio, nutrient and heavy metal contents were done in the samples of waste sludge during the (21.6.2001-26.12.2001) production period. In addition to the research, in the consideration of the greenhouse work, sludge was added to the pots 0- 20-40-80-120-160 tons ha-1 respectively before the planting. At the end of one month incubation period, the effects on changing the characteristics of soil before planting and after the harvesting of sludge and the growing and mineral matter content of corn plant was determined. According to the results of analysis done in the sludge samples that was taken during the production period, the content of plant nutrient matter of sludge was high and its heavy metal contents were found below the critical levels according to the soil pollution control instructions which were published in official news. The sludge that was applied to the soil with increasing amounts, raised the mineral matter content of plant and affected the growing of plant positively. Sludge was decreased the pH of soil before planting and after harvest, increased EC by making the negative effects on soil salinity. With the application of sludge, organic matter content, NH4, NO3, available P, changeable K, Ca, Mg, Na and available Fe, Cu, Mn, Zn and B contents were increased.