Objective: The objective of this study was to determine the effects different nitrogen doses and cultivars on some nutritive value annual ryegrass (Lolium multiflorum var. westerwoldicum) silage. Material Methods: conducted as a field experiment at Ege University, Department Field Crops during growing season 2019-2020. Four (Elif, Big Boss, Baquend, Medoacus) five (0, 75, 150, 225, 300 kg ha-1)...