Apply 37.5 kg nitrogen per bigha . Apply it in three equal portions:
At sowing, 27.5 kg urea should be applied.
When nitrogen is applied in four equal portions, it should be applied at the following stages:
With this method, only 75% of the total nitrogen i.e. 112.5 kg/ha is sufficient. In addition, apply two foliar sprays of 2.0% potassium nitrate at peak flowering and boll formation.
Apply 10 kg phosphorus equivalent to 62.5 kg SSP at the time of sowing.
Apply a 0.5% solution of a mixture containing six micronutrients, or spray 0.1% boron during flowering and boll development stages.