00437naa a2200121 a 450000100080000000500110000800800410001910000260006024501220008626000090020870000140021777300840023118359822010-01-10       1983    bl ---       0--  u    #d1 aMARTINEZ-CARRASCO, R.  aEar formation light interception and use and grain yield in response to sowing date and nitrogen fertilizer in wheat.  c19831 aPEREZ, P.  tAnales de Edafologia y Agrobiologia, Madridgv. 42, n. 7-8, p. 1221-1232, 1983.