A Field experiment was carried out in Experimental Research Station of Saba Basha Faculty Agriculture to examine the effect of  different potassium fertilization rates from two sources (potassium sulphate and potassium silicate) in relation to nitrogen fertilization on the response and yield of barley (Hordeum vullgare L.) grown in salt affected soil. Four rates of potassium (0, 15, 30, and 45 kg K /Fed.) and four nitrogen rates (0, 40, 60 and 80 kg N/Fed.) were applied in a split split plot design with three replicates. Potassium and nitrogen applications alleviated the soil stress condition and significantly (p < 0.05) improved grain yield of barley. The highest grain yield (2.45 ton/ fed.) was obtained of barley grown on saline soil in response to the highest potassium rates (45kg K/ Fed.) using potassium sulphate or potassium silicate fertilizer and nitrogen rates of 80 kg N/Fed. The contents of N, P, K and Si in barley leaves were also increased due to potassium application especially potassium silicate In general, the results of this study indicate that application of potassium in the two forms and nitrogen fertilization to barley grown on saline soil could improvements barley yield which can be badly suffer in the absence of K and N fertilization.