PREVIOUS studies have shown that liquid fertilizers significantly ……. improve crop morphology and productivity. Pot experiment was conducted in the greenhouse of the Micronutrient Project, Fertilization Technology Department, National Research Centre, Dokki, Cairo, Egypt with wheat (Triticum aestivum L. var. Sids 6) and faba bean (Vicia faba L. var. Giza 716) grown on clay loam soil to study the plants response to magnesium nitrate foliar fertilization. The experiment followed the Randomized Complete Block Design (RCBD) with six treatments in three replicates. The plants sprayed two times with the concentrations 0.0, 2.5, 5.0, 7.5, 10.0 and 12.5 ml.l^-1 from 28.76% Mg(NO₃)₂ stock solution. Results showed that MgNO₃ foliar fertilization significantly increased fresh weight, dry weight, plant height and root volume of the treated plants. The superior doses were 7.5-10.0 ml.l^-1 for wheat and 5.0ml.l^-1 for faba bean plants. Magnesium nitrate foliar fertilization found also to significantly increase both concentrations and uptake of almost all determined macro and micronutrients by wheat and faba bean plant organs. Magnesium nitrate foliar application is highly recommended for wheat and faba bean crop plants grown under low soil magnesium levels.