This work was conducted through two successive seasons (2018 and 2019) on Grand Nain banana grown in a private orchard located at El-Kalubia Governorate, Egypt to evaluate seaweed extract, selenium and glutamic acid effects on vegetative growth, yield as well as physical and chemical properties of the fruits. Plants were sprayed four times (mid of April, May, June and July) with glutamic acid at 50 or 100 ppm, seaweed extract at 0.05 or 0.1% and selenium at 50 or 100 ppm, as a single or combined applications. Treatments were very effective in stimulating all vegetative growth, bunch weight as well as physical and chemical fruit properties comparing with to the control treatment. A superior effect was obtained with the foliar spray of seaweed extract, followed by glutamic acid and selenium. Spraying banana plants four times with a mixture containing glutamic at 100 ppm + seaweed extract at 0.1%+ or selenium at 100 ppm recorded the best results with reference to vegetative growth, bunch weight and fruit properties.