A field experiment was conducted during Rabi season (Nov. 2015-March 2016) to study the “Effects of different levels of Nitrogen and phosphorus on Physico–chemical properties of soil, growth and yield of maize (Zea mays L.) Utraperdesh, India” at the research farm of department of soil science, Sam Higginbottom Institute of Agriculture, Technology & Sciences, Allahabad, The experiment was laid out in randomized block design with three levels of Nitrogen (0 kg ha^-1, 100 kg ha^-1, 120 kg ha^-1) and three levels of Phosphorous (0 kg ha^-1, 80 kg ha^-1 and 100 kg ha^-1). The treatments combinations were replicated three times and were allocated at random in each replication. The treatment combination T₈ [120 Kg N+ 100 kg P] gave the best result with the respect to plant height 172.33cm, number of leaves 12.22, stem diameter 2.86 cm, it gave highest grain seed yield 67.33, stove yield 171.33 and 1000 seed weight 224.44 g. Combined use of nitrogen and phosphorus resulted in significant increase on enrichment of soil fertility status. From the economical point of view,the same treatment gave the maximum profit of Rs90959.81 with C:B ratio of 2.50.