00630naa a2200205 a 450000100080000000500110000800800410001902400360006010000180009624500930011426000090020730000090021665000220022565000290024765000260027670000170030270000160031970000170033577300720035221177592020-11-26       2019    bl uuuu     u00u1 u    #d7 a10.1016/j.agee.2019.1066012DOI1 aGILLER, K. E.  aThe role of nitrogen fixation in African smallholder agriculture.h[electronic resource]  c2019  a7 p.  aNitrogen fixation  aFixação de Nitrogênio  aMicrobiologia do Solo1 aKANAMPIU, F.1 aHUNGRIA, M.1 aVANLAUWE, B.  tAgriculture, Ecosystems and Environmentgv. 285, art. 106601, 2019.