Two field experiments were carried out in Shandaweel Agric. Res. Sta., Agric. Res. Centre, Sohage Governorate, Egypt during 2014 and 2015 seasons to study the effect of planting dates, i.e. 20^th March and 20^th April, fertilization rates of nitrogen and potassium with application of micronutrients as foliar spray and splitting fertilizerson shedding, yield and its attributes of Giza 90 cotton cultivar. In each season, separate trial was conducted for each planting date and the combinations between fertilization rates and splitting fertilizers rates (12 treatments) were arranged in a split plot design with 4 replicates. The combined analysis was carried out for the collected data from the two planting dates in each year using MSTAT software.