01000naa a2200169 a 450000100080000000500110000800800410001910000180006024500860007826000090016449000290017350000960020252004080029865000200070665000090072677300950073510287672010-03-08       2004    bl ---       0--  u    #d1 aVAZ, C. M. P.  aAutomatic gamma-ray equipment for multiple soil physical properties measurements.  c2004  a(ictp lecture notes, 18)  aEditores: GABRIELS, D. M. ; GHIRARDI, G. ; NIELSEN, D. R. ; SENTIS, I. P. ; SKIDMORE, E. L.  aDetermination of solphysical parameters is sometimes very laborious and time consuming. For instance, the soil water retention curve takes several weeks. Participle density by picnometer and granulmetry (texture) by pipette method are laborious methods. Other parameters, such as bulk density and total porosity, are determined by gravimetric methods and depends on oven drying the samples for 24 hours.  aFísica do Solo  aSolo  tIn: Invited presentations college on soil physics 2003. [Trieste]: s.n., 2004. p. 461-468.