00514naa a2200157 a 450000100080000000500110000800800410001910000170006024500930007726000090017030000160017965000090019570000200020470000200022477301120024421195632020-02-11       1987    bl uuuu     u00u1 u    #d1 aSMYTH, T. J.  aManagement of green-manure nitrogen on Oxisols at Manaus, Brazil.h[electronic resource]  c1987  ap. 111-113.  aSolo1 aOLIVEIRA, L. A.1 aCRAVO, M. D. S.  tIn: CAUDLE, N. (Ed.). Tropsoils technical report 1985-1986. Raleigh: North Carolina State University, 1987.