A Study on the Foliar Application of Urea on Rice (Oryza sativa L.)

Abstract

Experiments conducted to find out the effect of foliar application of urea solution over the top dressing of urea revealed that the foliar application was an effective mea- sure of increasing the crop yield compared to top dressing. The foliar application could save at least 25 per cent of the nitrogen requirement. Application of 50 per cent of N as basal dose and another 25 per cent of N as foliar spray of 2.5 per cent urea solution at maximum tillering stage and 50 per cent N as basal + 25 per cent os foliar spray of 10 per cent urea solution at maximum tillering stage gave higher yield than the rest. A concentration of 5 to 7.5 per cent of urea solution can be adopted using a high volume sprayer without any bad effect. Spraying of water was found to have some favourable effect in increasing the yield.