Journal of Progressive Agriculture

The field study was conducted during kharif season of 2011–12 at Research Farm of Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experiment was laid out in Randomized Block Design with eight treatments and three replications. Common dose of RDF (60:30:30 kg N P₂O₅ K₂O ha⁻¹) to cotton was applied to all the treatments except control. The results indicated the application of RDF through boronated suphala (15:15:15 kg N P₂O₅ K₂O ha⁻¹ + 0.2 per cent B) and remaining N through urea significantly increased organic carbon, available nutrient status in soil, seed cotton and cotton stalk yield and uptake of N, P, K. However, it was found at par with the application of RDF through boronated suphala (15:15:15 kg N P₂O₅ K₂O ha⁻¹ + 0.1 per cent B), non boronated suphala (15:15:15 kg N P₂O₅ K₂O ha⁻¹) + borax equivalent to 0.1 per cent B and 0.2 per cent B. Hence, it can be concluded that application of RDF through boronated suphala (15:15:15 kg N P₂O₅ K₂O ha⁻¹ + 0.1 per cent B) and remaining N through urea was found to be beneficial in respect of increasing soil fertility, nutrient uptake and yield of Bt cotton.