00545nam a2200193 a 450000100080000000500110000800800410001910000150006024500460007526000840012130000080020549000410021365000180025465000220027265000140029465000100030865300130031870000200033112923142009-08-10       1976    bl uuuu     u0uu1 u    #d1 aBEY, C. F.  aWeed control in black walnut plantations.  aSaint Paul: USDA. Forest Service, North Central Forest Experiment Stationc1976  a4p.  a(USDA. For. Serv. Res. Note Nc-203).  aJuglans nigra  aControle Químico  aHerbicida  aPraga  aControle1 aWILLIAMS, R. D.