Santos, M.R., Martinez, M. and Zonta, J. 2010. MODELS TO DETERMINE PHOSPHORUS AND NITRATE CONCENTRATION IN QUARTZARENIC NEOSOL AND RED LATOSOL USING TDR. Engineering in Agriculture. 18, 1 (Feb. 2010), 30–39. DOI:https://doi.org/10.13083/reveng.v18i1.162.