01925naa a2200433 a 450000100080000000500110000800800410001910000230006024501140008326000090019730000310020650000110023752006840024865000160093265000110094865000270095965000110098665000140099765000120101165000120102365000130103565000160104865000150106465000150107965000140109465000120110865000180112065000100113865000130114865000150116165300200117665300110119665300230120765300110123065300150124170000210125670000200127777301940129713240932008-03-10       2001    bl uuuu     u00u1 u    #d1 aEUCLIDES, V. P. B.  aAnimal production from tropical pastures renovated by subsoiling and fertilization in the cerrados of Brazil.  c2001  ap. 841-842. (ID n. 22-30).  aCNPGC.  aA grazing trial was conducted,  to study the effects of fertilization on the maintenance of the productivity of four tropical grasses. The paddocks were subsoiled, and dived into halves: received one (LFI) received 400kg/ha of the same fertilizer formula 0-20-20. and the other (LF2) 800 kg/ha of the same fertilizars, in january 1995. Annually, 50 kg/ha of the N was applied. The productivity on LP2 pastures was greater than that on FL.1 pastures, averaging 520 and 410 kg of liveweight gain/ha/year. A double strategy should be followed to sustain animal production in the savanna: maintain soil P over a critical value of 3,0 mg P (Mechilich-1)/dm, and annual N appliocation.  abeef cattle  aBrazil  afertilizer application  agypsum  alimestone  aNellore  aPanicum  apastures  aweight gain  aAdubação  aBrachiaria  aCalcário  aCerrado  aGanho de Peso  aGesso  aPastagem  aProdução  aBovino de corte  aBrasil  aBrazilian savannas  aNelore  aProduction1 aMACEDO, M. C. M.1 aOLIVEIRA, M. P.  tIn: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro. Grassland ecosystems: an outlook into the 21st century: proceedings. Piracicaba: Sociedade Brasileira de Zootecnia: FEALQ, 2001.