00480nam a2200157 a 450000100080000000500110000800800410001910000150006024500390007526000830011430000100019749000680020765000180027565000090029370000200030210574142022-10-20       1969    bl uuuu     u00u1 u    #d1 aMAPLES, R.  aSoybean fertilization experiments.  aFayetteville, Arkansas (USA): Arkansas Agricultural Experimental Stationc1969  a20 p.  a(Arkansas Agricultural Experimental Station Report Series; 178)  aFERTILIZACION  aSOJA1 aJOSEPH L. KEOGH