00518naa a2200145 a 450000100080000000500110000800800410001910000190006024500720007926000090015170000220016070000180018270000160020077301560021614633472002-11-13       2001    bl ---       0--  u    #d1 aANDRADE, D. S.  aLong-term effects of agricultural practices on microbial community.  c20011 aCOLOZZI FILHO, A.1 aBALOTA, E. L.1 aHUNGRIA, M.  tIn: WORLD CONGRESS ON CONSERVATION AGRICULTURE, 1., 2001, Madrid. Conservation agriculture, a worldwide challenge. Madrid: FAO: ECAF, 2001. p. 275-280.