ABSTRACT A field experiment was conducted at the crop pavilion, Faculty of Agriculture, University of Ilorin, Ilorin in the southern Guinea savannah ecology to determine the effect of NPK fertilizer application on the growth and yield of three cucumber varieties. The experiment was designed as a 3x5 factorial in RCBD, arranged in split-plots and replicated three times. The main plots consisted of three cucumber varieties (Marketer, Marketmore and Poinsett), while the sub-plots were made up o...