Effect of different levels of nitrogen and phoshorus on the yield of ARZ, WL-711 and Khyber79 varieties of wheat was studied at the Agricultural Research Station, Dera Ismail Khan, during 1980-81 to 1982-83. The yield data indicated that application of 100 kg N plus 90 kg P20 5 /ha proved better forARZ and WL-711 varieties and 150 kg N in combination with 90 kg P /ha for Khyber-79 20 5 variety.
