Turatti, A.L. Villagra, M.M. Ponce, J.E. Bacchi, O.O.S. Reichardt, K. Variabilidade espacial do solo e sua implicacao na calibracao de sondas de neutrons Soil spatial variability and its implication on the calibration of neutron probes Subjects--Topical Terms: FISICA DO SOLOAGUA DO SOLONEUTRONSAO PAULO