The present work was carried out in Vegetable Private Farm at Al-Blashon, Belbies District, Sharkia Governorate, Egypt during two successive winter seasons  of 2014/2015 and 2015/2016, to evaluate  the effect of  N and K₂O rates, ascorbic acid (Vitam. C) and salicylic acid (SA) on dry weight, yield and storability of garlic (cv Balady) under clay soil conditions using surface irrigation system. The obtained results could be summarized as follows: The interaction between N+K at 80 kg N + 75 kg K₂O/fad., and foliar spray of Vitam. C at 100 mg/l gave the highest value for each of dry weight of leaves and bulb as well as total dry weight/plant, yield of grades 1, 2, 3 and 4, exportable yield, marketable yield, total yield/fad., average bulb weight and reduced weight loss percentage of bulbs during storage period in both seasons.