01085nam a2200193 a 450000100080000000500110000800800410001910000190006024500950007926001690017452003940034365000220073765000240075965000290078365000230081270000220083570000180085770000160087514633472025-07-23       2001    bl uuuu     u00u1 u    #d1 aANDRADE, D. S.  aLong-term effects of agricultural practices on microbial community.h[electronic resource]  aIn: WORLD CONGRESS ON CONSERVATION AGRICULTURE, 1., 2001, Madrid. Conservation agriculture, a worldwide challenge: anais. Madrid: FAO: ECAF, 2001. p. 275-280.c2001  aIn Brazil, efforts to increase soil organic matter and to reduce soil nutrient losses through erosion have been made including the adoption of the no-tillage system and cover/rotation/intercropping practices with legumes. The better results obtained within these systems could be attributed to erosion control, improved plant residue management, higher rates of biological N, fixation, ...  aNitrogen fixation  aSoil organic matter  aFixação de Nitrogênio  aMatéria Orgânica1 aCOLOZZI FILHO, A.1 aBALOTA, E. L.1 aHUNGRIA, M.