Two field experiments were conducted during 2019/2020 and 2020/2021 seasons to study the effect of sowing dates (10^th December, 1^st January and 20^th January), N-fertilizer (45 and 70 kg N/fed) and seeding rates (50 and 70 kg seeds/fed) on earliness, growth, yield and its attributes of some barley cultivars (Giza 132, Giza 133, Giza 134 and Giza 135) under conditions of sandy soils. Each sowing date was accomplished in individual conduct experiment. Every experiment of sowing dates was passed in split-split plot layout with 3 replicates. December 10^th plantation markedly exhibited most marked increases in earliness characters, growth characters and yields and its attributes. Giza 134 cultivar produced greatest amounts of plant elevation, No. of spikes/m², spike interval, No. of grains for each spike, grains weight for each spike, 1000 – grain wt., grain and straw yields for each fed. Fertilizing with 70 kg N/fed gave greatest amounts of earliness characters, growth characters, yields and its attributes. Sowing with50 kg seeds/fed led to obtain the greatest amounts of No. of days from sowing to 50 % heading and to full maturity, spike interval, No. of grains/spike, grains weight/spike and 1000 – grain wt. While, sowing with 70 kg seeds/fed gave greatest amounts of plant elevation, No. of spikes/m², grain and straw yields for each fed. Sowing barley Giza 134 or 133 cultivars on 10^th December with 70 kg seeds/fed and fertilizing plants with 70 kg N/fed could be recommended to obtain highest productivity under conditions of sandy soils.