00493naa a2200157 a 450000100080000000500110000800800410001910000180006024500690007826000090014730000160015665000090017270000170018170000200019877301170021821195382020-01-29       1991    bl uuuu     u00u1 u    #d1 aMELGAR, R. J.  aFertilizer N requirements for long-term corn productionbM-910A.  c1991  ap. 270-275.  aSolo1 aSMYTH, T. J.1 aCRAVO, M. D. S.  tIn: McBRIDE, T. P. (Ed.). Tropsoils technical report, 1988-1989. Raleigh: North Carolina State University, 1991.