The aim of this experiment was to study the effects of nitrogen, phosphorus and potassium fertilizers on the growth and yield of rainfed maize in Upper Casamance (Kolda, Senegal). The experimental set-up is a randomized complete block design with 4 replications. The fertilization factor was studied in 19 treatments and a blank control. Parameters studied included plant height, ear diameter and length. The parameters measured showed that nitrogen is...