Droupathi Devi, GVijayagopal, P DSasidhar, A V KKAU2019-07-262019-07-261980Agricultural Research Journal of Kerala, 18(1), 23-26.http://krishikosh.egranth.ac.in/handle/1/5810117162The effect of fractional application of nitrogen on the grain yield of two high yielding rice varieties Jaya and Annapurna was studied for six consecutive seasons during 1972-73 to 1974-75 in the Rice Research Station, Mannuthy. Significant results were obtained in two first crop seasons and the treatments receiving 50 kg N as basal and another quantity of 50 kg N in two equal splits given either at booting and heading or at panicle initiation and booting gave maximum grain yield.ennullArticle