00389naa a2200109 a 450000100080000000500110000800800410001910000330006024501240009326000090021777300530022618316292010-01-10       1958    bl ---       0--  u    #d1 aMORRIS, H. D. GARDNER, F. P.  aThe effect of nitrogen fertilization and duration of clipping period on forage and grain yields of oats, wheat and rye.  c1958  tAgronomy Journalgv. 50, n. 8, p. 454-457, 1958.