Soil secondary salinization is a global problem, especially in areas where groundwater of high salt content is used for crop irrigation. Water resources with a certain salt content can be used for irrgation under certain conditions and restrictions. For the experiment, data from 8 years was provided in order to analyze whether there is an influence of adding soil conditioner to the soil under salty water irrigation regime. Soil conditioner PRP-SOL added to a solonetz soil in lysimeter condition proved to have an influence helping in decrease the salt content in the lower root zone in one of the lysimeters, this effect was only evident when the application takes place in a long period time.