Abstract

Field experiment was carried out during summer seasons of 2000 and 2001 to evaluate the response of summer irrigated cotton to foliar nutrition of two rounds of DAP 2% and KCI 1% at 50th and 70th days after sowing and topping at 12th node alone and in combination with two rounds of NAA at 40 ppm on 45th and 60th days after sowing. The results revealed that the dry matter accumulation by cotton and seed cotton yield were the highest with the application of NAA 40 ppm twice at 45 and 60 days after sowing in combination with KCI 1% at 50 and 70 days after sowing with a cost benefit ratio of 2.93 and 3.05, respectively in 2000 and 2001.

Keywords: Cotton, Foliar nutrition, NAA, Topping