Studies were conducted on the effects of application methods on the recovery of fertilizer N by rice plant (Oryza sativa L.) using ¹⁵N labeled urea in microplots at the International Rice Research Institute (IRRI) in 1981.Uniform placement with prilled urea and point placement with urea supergranule (SGU) gave the highest yields(6.4t/ha) with the efficiency of 51Kg rough rice/Kg N in dry season.IN wet season,Point placement with SGU produced the highest yield (4.4t/ha) with the efficiency of 40 Kg rough rice/kg N.