In order to ensure adequate nitrogen supply to the plants, timely apply fertilizer or spray 1 to 1.5% urea 2 to 3 times at 10 days interval. DAP can also be sprayed in place of urea. To prevent micronutrients and especially magnesium deficiency, spray magnesium 20 to 25 g per 10 lit of water at weekly interval. On requirement, give irrigation to maintain the moisture in the soil.