A field experiment was carried out in the area of Al-Mahtahia in Babil province. The experiment was aimed at studying the effect of using different levels of plant waste (wheat straw) as organic fertilizer and using different water types (river water, drainage water and well water) In the growth and yield of pepper and some chemical soil properties measured. Use Randomized Complete Block Design was used to implement the experiment. The results showed that the values of plant height were 52.33 cm, 25 fruit / plant for fruit number, 24.11 sp. For chlorophyll and 54.24 g / fruit for the weight of thyme, adding organic matter to 20 ton / ha. It was also the highest value for the use of different irrigation water when using the river water and all the characteristics of the plant as its values in plant height 52.76 cm compared to other water types. As for the chemical soil properties, the results showed that the effect of adding the organic matter on the Ph soil, which was 7.3 when adding organic matter to the level of 20 tons / ha compared with the comparison treatment, which amounted to 7.7 g / kg. Soil salinity values were 4.5 ds.m-1 when organic matter was added to the 20 ton / ha level compared with the comparison treatment of 3.4 ds.m-1, and the organic matter values were 2.267 g.kg-1 When adding organic matter to the level 20 ton / ha compared to the comparison treatment of 0.86 g.kg-1. Interaction between straw and water quality was found to have a good effect in reducing the salinity effect of water used by wheat straw.