Al-Samah , A. and Al-Ubaidy, R. 2026. THE EFFECT OF BIOFERTILIZATION, ORGANIC NUTRIENT SPRAYING AND GLUTAMIC ACID ON SOME LETTUCE TRAITS . IRAQI JOURNAL OF AGRICULTURAL SCIENCES. 57, 6 (Jun. 2026), 1783–1796. DOI:https://doi.org/10.36103/2xrwk829.