00744nam a2200193 a 450000100080000000500110000800800410001902000180006002200140007810000190009224500890011126000750020030000150027549000470029052001600033765000120049765000190050965000220052819804252014-02-19       2001    bl uuuu      00u1 u    #d  a92-5-104672-7  a1919-13651 aLANDERS, J. N.  aZero tillage development in tropical Brazilbthe story of a successful NGO activity.  aWageningen: Wageningen University and Research Centre; Rome: FAOc2001  a57 p.cil.  a(FAO Agricultural services Bulletin, 147).  aIntroduction. The case study: Background to the founding of the NGO and its early activities. Analytical discussion of specific aspects. Future challenges.  aCerrado  aPlantio direto  aPrática cultural