00570naa a2200145 a 450000100080000000500110000800800410001910000170006024501030007726000090018070000150018970000180020470000190022277301830024113018122001-04-24       1998    bl uuuu     u00u1 u    #d1 aBUNEMANN, E.  aFertilizer response of maize and cowpea under conditions of fire-free land preparation in NE Para.  c19981 aDENICH, M.1 aVIELHAUER, K.1 aVLEK, P. L. G.  tIn: LIEBEREI, R.; BIANCHI, H.; VOB, K., ed. Proceedings of the third SHIFT-Workshop, Manaus march 15-19, 1998. Bonn: Bundesministerium fur Bildung und Forschung, 1998. p.157-159.