A field experiment was conducted at Junagadh Agricultural University, Junagadh during kharif 2006-2007 and 2007-2008 to evaluate the effect of different levels of nitrogen, phosphorus and potassium on growth, yield and quality of hybrid Bt cotton. The results indicated that significantly higher seed cotton and stalk yields, growth and yield attributes, quality parameters as well as total uptake of N, P, K were obtained with the application of N @ 240 kg/ha, P 2O 5 @ 50 kg/ha and K 2O @ 120 kg/ha. The seed cotton yield of Bt cotton increased to the tune of 20.51, 6.90 and 13.27 per cent with the application of 240 kg N/ha, 50 kg P 2O 2/ha and 120 kg K 2O/ha, respectively as compared to control.
