00509nam a2200205 a 450000100080000000500110000800800410001910000230006024500580008325000110014126000330015230000160018565000120020165000160021365000130022965000110024265000090025365300190026270000220028119346002012-09-26       1983    bl uuuu      00u1 u    #d1 aLOCKHART, J. A. R.  aIntroduction to crop husbandry (including grassland).  a5. ed.  aOxford: Pergamon Pressc1983  a256 p.cil.  aDoença  aFertilidade  aPastagem  aPlanta  aSolo  aPlanta daninha1 aWISEMAN, J. A. R.