The experiment was carried out during 2023 and included two factors, the first two cultivars of olive (Sorani and Nabali), and the second factor included 9 fertilizer treatments that contained the chemical fertilizer NPK (20:20:20) and both the Gorabac G biofertilizer and the biofertilizer in broth form, as follows: (15g.Seedlings^-1NPK (20:20:20) ، 10 gm. seedlings^-1NPK + 5 gm.Seedlings^-1 biofertilizer Gorabac G ، 5 gm. Seedlings^-1 NPK + 10 gm.Seedlings^-1 biofertilizer Gorabac G ، 2.5 gm. Seedlings^-1NPK + 15 gm.Seedlings^-1 biofertilizer Gorabac G ، 20 gm. Seedlings^-1 biofertilizer Gorabac G ، 10 gm. Seedlings^-1NPK + 5 ml. Seedlings^-1 Biofertilizer in broth form، 5 gm. Seedlings^-1 NPK + 10 ml. Seedlings^-1 biofertilizer in broth form،2.5 gm. Seedlings^-1 NPK + 15 ml. Seedlings^-1 biofertilizer in broth form، 20 ml. Seedlings^-1 biofertilizer in broth form(. Fertilizers were added to the soil. Chemical fertilizer was added twice at the end of March and April, while biofertilizer was added in mid-March. The results obtained showed that the fertilizer treatment (10 gm. seedling^-1 NPK + 5 ml. seedling^-1 The biofertilizer in the form of broth was significantly superior to all fertilizer treatments in terms of the leaf area of ​​the seedling, while there were no significant differences between all treatments in the other characteristics. The Sorani variety also outperformed the Nabali variety in the fresh and dry weights of the leaves.