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B.S. in Agronomy at the Federal University of Viçosa, Brazil, 1995.
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M.S. in Soil Science and Plant Nutrition at “Luiz de Queiroz” College of Agriculture, Piracicaba, Brazil, 1997.
Dissertation: Thermodynamic equilibrium of the K-Ca exchange in soils presenting different physicochemical properties. -
D.S. in Soil Science and Plant Nutrition at “Luiz de Queiroz” College of Agriculture, Piracicaba, Brazil, 2002.
Thesis: Mineralogical and electrochemical properties, adsorption and desorption of sulfate in representative soils of the São Paulo State.
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The weathered soils like the oxisols cover most of tropical and subtropical regions and play an important role in the production of food, fibers and bioenergy. In this context, our research interests are focused on the chemistry and mineralogy of variable charge soils aiming at contributing for the improvement of their management practices. In the last years, we and collaborators have been carrying out research with tropical soils related to cation exchange, sulfate sorption and desorption, XRD-Rietveld based quantitative mineralogical analyses, nitrate leaching and anion-induced cation transport. During the sabbatical leave at the Environmental Soil Chemistry Research Group of University of Delaware, we will study the kinetics and mechanisms of formation of non-labile P onto typical minerals of oxisol clays; for this cutting-edge research tools based on infrared and x-ray absorption spectroscopies will be applied to provide more detailed information on the quasi-irreversible time-dependent sorption of phosphorus that usually takes place in deeply weathered oxisols.
ALVES, M.E.; MACEDONIO, C.R.; LAVORENTI, A. Point of zero salt effect: analytical computational approach to its determination from potentiometric titration data. Brazilian Journal of Soil Science, 2002, 26, 553-559. (In Portuguese) pdf
ALVES, M.E.; LAVORENTI, A. Potassium-calcium exchange in electropositive oxisols: description of exchange sites. Australian Journal of Soil Research, 2003, 41, 1423-1438. pdf
ALVES, M.E.; LAVORENTI, A. Sulfate adsorption and its relationships with properties of representative soils of the São Paulo State, Brazil. Geoderma, 2004, 118, 89-99. pdf
ALVES, M.E.; LAVORENTI, A. Remaining phosphorus and sodium fluoride pH in soils with different clay contents and clay mineralogies. Brazilian Journal of Agricultural Research, 2004, 39, 241-246. pdf
ALVES, M.E.; LAVORENTI, A. Clay mineralogy effects on sodium fluoride pH of non-allophanic tropical soils. Australian Journal of Soil Research, 2004, 42, 865-874. pdf
ALVES, M.E.; LAVORENTI, A. Point of zero salt effect: relationships with clay mineralogy of representative soils of the São Paulo State, Brazil. Pedosphere, 2005, 15, 545-553. pdf
ALVES. M.E.; LAVORENTI, A. Sulfate desorption by representative soils of the São Paulo State, Brazil. Australian Journal of Soil Research, 2006, 44, 291-297. pdf
ALVES, M.E.; LAVORENTI, A. Remaining phosphorus estimate through multiple regression analysis. Pedosphere, 2006, 16, 566-571. pdf
ALVES, M. E. ; MASCARENHAS, Y. P. ; FRENCH, D. H. ; VAZ, C. M. P. Rietveld-based mineralogical quantitation of deferrified oxisol clays. Australian Journal of Soil Research, 2007, 45, 224-232. pdf
ALVES, M. E. ; MASCARENHAS, Y. P. ; VAZ, C. M. P. Comparison of procedures for quantification of kaolinite and gibbsite in iron-free clay in Latosols. Brazilian Journal of Soil Science, 2008, 32, 569-577. (In Portuguese) pdf
ALVES, M.E.; OMOTOSO, O. Improving Rietveld-based clay mineralogical quantification of oxisols using SIROQUANTTM. Soil Science Society of America Journal, 2009, 73:2191-2197. pdf
Contact Information:
Plant and Soil Sciences
University of Delaware
152 Townsend Hall
Newark, DE 19716
Phone: 302 831-2505
Fax: 302 831-0605
e-mail: mealves@udel.edu
Escola Superior de Agricultura "Luiz de Queiroz"
Departmento de Ciências Exatas
Avenida Pádua Dias, 11
13418-900 Piracicaba – SP - Brasil
55-19-3429-4151 and
55-19-3429-4439 (FAX)
mealves@esalq.usp.br