Abstract: The study was conducted at Cotton research section, Agriculture research institute Tando Jam, The experimental was in RCBD with three Replications. Treatments comprised of three Cotton cultivars (TH- 41/83, TH- 35/83 and Rehmani) and 10 fertilizer levels. The result indicated that the plant height was significantly affected by NP fertilizer level. All NP levels increased plant height over control. The sympodial branches were significantly affected by NP fertilizer levels. The combination of NP Levels resulted Greater number of bolls per plant over control.