00448naa a2200133 a 450000100080000000500110000800800410001910000170006024500890007726000090016670000210017570000170019677301010021318265852010-01-10       1971    bl ---       0--  u    #d1 aHABIB, M. M.  aYield and protein of wheat grain as affected by N-levels and dates of fertilization.  c19711 aNASRALLAH, A. K.1 aKHADR, F. H.  tAlexandrian Journal of Agricultural Research, Alexandria - Egyptgv. 19, n. 2, p. 239-244, 1971.