A factorial field experiment was carried out in one of the agricultural fields of Dar Al Salam sub-district in Diyala governorate during the autumn season of 2020, to reduce the role of calcium silicate in reducing the effect of salt stress on the growth and yield of maize. The experiment included two factors, the first factor: four levels of salinity for irrigation water W1, W2, W3 and W4 (1.3, 2, 4, 6) dsm-1 and Factor II: Three levels of calcium silicate S0, S1, and S2 (0, 75, 150) kg h-1. The transactions were distributed according to a randomized complete block design (R.C.B.D) using a split-plot design system, with three replications. The seeds of yellow corn variety (Corn) of Spanish origin were planted on 29/7/2020 after preparing the experimental ground. Fertilizers were added following the fertilizer recommendation. The most important results obtained showed that Silicon addition treatment of 75 kg h-1 S1 gave the highest significant increase in dry weight, which amounted to 420.5 gm plant-1, compared with treatment S0 and S2, with an increase of 19.8 and 15.7%, respectively.