00687nam a2200205 a 450000100080000000500110000800800410001902000180006010000190007824500690009726000320016630000100019852001410020865300240034965300210037365300240039465300270041870000180044570000180046317089362008-08-15       1993    bl uuuu      00u1 u    #d  a9966-9892-1-81 aOKALEBO, J. R.  aLaboratory methods of soil and plant analysisba working manual.  aNairobi: Unesco/Rostac1993  a88 p.  aLaboratory basics; Soil physical analysis; Soil and plant analytical procedures; Measurement of soil organic matter; Analytical results.  aAnálise de plantas  aAnálise de solo  aLaboratory Analysis  aMétodos laboratoriais1 aGATHUA, K. W.1 aWOOMER, P. L.