Phillip Barak
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Phillip Barak PhD, Soil Science,
1988 Hebrew University of Jerusalem
Associate Professor Department of Soil Science University
of Wisconsin-Madison 1525 Observatory Dr., Madison, WI 53706-1299
Interim Assistant Dean (Oct 2006 - May 2007) Undergraduate
Programs & Services College of Agricultural and Life
Sciences University of Wisconsin-Madison
Tel: 608 263-5450 Fax: 608 265-2595 e-mail:
pwbarak@wisc.edu |
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Of current interest:
Struvite crystallization on Langmuir monolayers,
self-assembled monolayers, and cation exchange membranes as a means to recover
and recycle phosphorus from wastewater (municipal sewage and agricultural
manure) as a high-value fertilizer material (US Patent No. 7,182,872; issued 27
Feb 2007.)
M.L. Jackson's Soil Chemical Analysis:
Advanced Course has been rekeyed from the last (1985) edition and
reprinted, with a new introduction and commemorative material. See
GoogleBookSearch
for sample pages and here for ordering
information.
Experiments with ICE's Polyhedral Model Kit, remanufacturing
connectors for more precise assembly of aluminosilicates.
ScientificAmerican.com selected
The Virtual Museum of Minerals and
Molecules as a WINNER of the 2003 Sci/Tech Web Awards. "Each year, our
editors review over a thousand web sites and select the 50 they deem the most
innovative, creative and valuable as science and technology resources for our
readers. This year your web site has been selected as one of the best of its
kind."
College press release,
"Acid Linked
To Soil Aging", 3 Mar 1999
EDUCAUSE/ASA Medal
Award, 26 Oct 1999
Research interests:
Soil chemistry of plant nutrients, plant nutrition, and scientific
visualization. Ongoing projects:
- Modelling, measurement, and prediction of agricultural liming on
millimeter scale, using ion-specific microelectrodes, diffusion cells, and
irreversible thermodynamics.
- Evaluation of soil chemical changes as a result of long-term
fertility management practices, such as exchangeable base cations, exchangeable
acidity, and cation exchangeability, and their reversibility.
- Effect of cultivar and soil treatments on calcium uptake by
snapbeans, in order to enhance calcium uptake by humans.
- Investigation into the interaction in the uptake of sulfur and
selenium by Allium, as part of evaluating the phytopharmaceutical
potential of organo-S and organo-Se compounds.
- Evaluation of wild potato germplasm for efficiency and preference in
nitrate/ammonium uptake.
- Iron nutrition of plants--evaluation of iron chelates, their
chemistry, and effectiveness in ameliorating iron deficiencies.
Recent publications:
- Lepore, B.J., and P. Barak. 200x. A colorimetric microwell method for
determining bromide concentrations. Soil Sci Soc. Am. J. (in
review)
- Barak, P., M.E. Tabanpour, M. Avila-Segura, J.M. Meyer. 2007.
Struvite
Crystallization. US Patent No. 7,182,872; rights assigned to
WARF.)
- Barak, P., and E.A. Nater. 2005. The
Virtual Museum of Minerals and Molecules: Molecular visualization in a virtual
hands-on museum. J. Nat. Resour. Life Sci. Educ. 34:67-71. [html]
- Avila-Segura, M., J.W. Lyne, J.M. Meyer, and P. Barak. 2004.
Rapid spectrophotometric analysis of soil
phosphorus with a microplate reader. Comm. Soil Sci. Pl. Anal.
35:547557.
- Grunwald, S., and P. Barak. 2003. 3D
geographic reconstruction and visualization techniques applied to land resource
management. Trans. GIS 7(2):231-241.
- Grunwald, S., and P. Barak. 2002. The
use of VRML for virtual soil landscape modeling. System Analysis
Modelling Simulation (SAMS) 41:755-776.
- Grunwald S., P. Barak, and D.J. Rooney. 2001.
Web-based virtual models for the earth science
community. ASAE International Meeting in Sacramento, CA, July 29-August 1,
2001; Paper No. 013029. (pdf)
- Orvis, K.S., I.L. Goldman, and P. Barak. 2001.
Excess sulfate supply and onion-induced human
antiplatelet activity. J. Plant Nutr. Soil Sci. 164:457-462
- Grunwald, S., and P. Barak. 2001. Virtual reality modeling in earth sciences. p.
216-221. In: C. Landauer and K.L. Bellman. (ed.) The Proceedings of the
International Conference on Simulation and Multimedia in Engineering Education
& Virtual Worlds and Simulation. Soc. Modeling and Simulation
International, San Diego, CA. [ISBN:1-56555-224-5; Western MultiConference on
Computer Simulation. Phoenix, AZ, 7-11 Jan 2001] (illustrations at
http://www.soils.wisc.edu/~barak/wmc2001/).
- Sherman, L.A., and P. Barak. 2000. The
solubility and dissolution kinetics of dolomite
[CaMg(CO3)2] in Ca-Mg-HCO3/CO3
solutions at 25°C and 0.1 MPa carbon dioxide. Soil Sci. Soc. Am. J.
64:1959-1968.
- Grunwald, S., P. Barak, K. McSweeney, and B. Lowery. 2000.
Soil landscape models at different scales
portrayed in Virtual Reality Modeling Language (VRML). Soil Sci.
165:598-615. (illustrations at
http://www.soils.wisc.edu/soils/3D_SL_models/3Dsoils.html)
- Mafongoya, P.L., P. Barak, J.D. Reed. 2000.
Carbon, nitrogen and phosphorus mineralization of
tree leaves and manure. Biol. Fert. Soils 30:298-305.
- Starr, G.C., P. Barak, B. Lowery, and M. Avila-Segura. 2000.
Soil particle concentrations and size analysis
using a dielectric method. Soil Sci. Soc. Am. J. 64:858-866.
- Barak, P., B.O. Jobe, A. Krueger, L.A. Peterson, and D.A. Laird.
1997. Effects of long-term soil acidification due
to agricultural inputs in Wisconsin. Plant and Soil197:61-69.
- Hernández-Apaolaza, L., P. Barak, and
J.J. Lucena. 1997. Chromatographic determination
of commercial Fe(III)-chelates of EDTA, EDDHA and EDDHMA. J. Chromatogr.
A 789:453-460.
- Barak, P., and I.L. Goldman. 1997. Antagonistic relationship between selenate and
sulfate uptake in onion (Allium cepa): Implications for the production
of organosulfur and organoselenium compounds in plants. J. Agric. Food
Chem. 45:1290-1294.
- Miglioranza, E., P. Barak, K. Kmiecik, and J.
Nienhuis. 1997. Comparison of soil and genotypic
effects on calcium content of snap bean pods. HortScience 32:68-70.
- Liu, Y.-J., D.A. Laird, and P. Barak. 1997.
Release and fixation of NH4 and K under
long-term fertility management. Soil Sci. Soc. Am. J. 60:310-314.
- Cihacek, L.J., W.L. Anderson, and P. Barak. 1996. Linkages between
soil quality and plant, animal and human health. p. 9-23. In J.W. Doran
and A.J. Jones (ed.) Methods for Assessment of Soil Quality. SSSA Spec.
Publ. No. 49, Madison, WI.
- Barak, P., C.A. Seybold, and K. McSweeney. 1996.
Self-similitude and fractal dimension of sand
grains by computer-assisted image analysis. Soil Sci. Soc. Am. J.
60:72-76.
- Barak, P., L.A. Sherman, and B.O. Jobe. 1996.
Comments on "Design and construction of a
personal-computer-based automatic titrator". Soil Sci. Soc. Am. J.
60:630.
- Barak, P., Smith, J.D., Krueger, A.R., and Peterson, L.A. 1996.
Measurement of Short-Term Nutrient Uptake Rates in
Cranberry by Aeroponics. Plant, Cell, and Environ. 19:237-242.
- Lucena, J.J., P. Barak, and L. Hernández-Apaolaza. 1996.
Isocratic ion-pair high-performance liquid
chromatographic method for the determination of various iron(III) chelates.
J. Chrom. A.727:253-264.
- Barak, P. 1995. Smoothing and
Differentiation by an Adaptive-Degree Polynomial Filter. Anal. Chem.
67:2758-2762
- Barak, P., and P.A. Helmke. 1993. "The
chemistry of zinc" pp. 1-13. in: A. Robson (ed.) Zinc in Soils and
Plant. Proc., Internat. Symp. on "Zinc in Soils and Plants", Perth,
Australia. Kluewer Acad. Press, Dordrecht.
- Welhouse, G., P. Barak, and W.F. Bleam. 1993. Dimerization constants of atrazine and
CF3-labeled atrazine. J. Phys. Chem. 97:11583-11589.
- Barak, P. and Y. Chen. 1992. Equivalent
radii of humic macromolecules from acid-base titration. Soil Sci.
152:184-195.
- Bouabid, R., E.A. Nater, and P. Barak. 1992.
Measurement of pore size distribution in a
lamellar Bt horizon by epifluorescence microscopy and image analysis.
Geoderma 53:309-328.
- Hadas, A., M. Sofer, J.A.E. Molina, P. Barak, and C.E. Clapp. 1992.
Assimilation of nitrogen by soil microbial
population: NH4 vs. organic N. Soil Biol. Biochem.
24:137- 143.
- Laird, D.A., P. Barak, E.A. Nater, and R.H. Dowdy. 1991.
Chemistry of smectitic and illitic phases in
interlayered soil smectite. Soil Sci. Soc. Am. J. 55:1499-1504.
- Baruch, E., D. Lichtenberg, P. Barak, and S. Nir. 1991.
Calcium binding to bile salts. Chem. Phys.
Lipids 57:17-27.
- Barak, P., Y. Coquet, T. Halbach, and J.A.E. Molina. 1991.
Evaluation of the biodegradability of
polyhydroxybutyrate(co-hydroxyvalerate) and starch-incorporated polyethylene
plastic films in soils. J. Environ. Qual. 20:173-179.
- Barak, P., J.A.E. Molina, A. Hadas, and C.E. Clapp. 1990.
Mineralization of amino acids and evidence of
direct assimilation of organic nitrogen. Soil Sci. Soc. Am. J.
54:769-774.
- Barak, P., J.A.E. Molina, A. Hadas, and C.E. Clapp. 1990.
Optimization of an ecological model with the
Marquardt algorithm. Ecol. Modelling 51:251-263.
- Barak, P. 1990. SPECIES: A spreadsheet
program for modeling speciation of soil solution. J. Agron. Educ.
19:44-46. [Download software!]
- Barak, P. 1989. Double layer theory
prediction of Al-Ca exchange on clay and soil. J. Colloid Interface
Sci. 133:479-490.
Barak's Virtual Poster
Gallery
Courses Taught:
- General Soil Science, Soils
301 (undergrad; course coordinator--Fall 2006)
- Plant Nutrition Management, Soils/Hort/Agron 326 (undergrad),
3 cr (Spring semester)
[General
Course Listing] [Visit the Course
Home Page]
- Mineral Nutrition of Plants, Soils/Hort/Bot 626 (grad), 3 cr
(with Edgar Spalding, Botany; alternate years,Fall 2006)
[General
Course Listing] [Visit the Course
Home Page]
- Soils and Environmental Quality, Soils/EnvSt 324, 3 cr
(on-line section, Fall 2005)
- Special Topics: Soil Mineralogy, SoilSci 699 (grad), 3 cr
(with Ed Nater, Univ of Minnesota; Spring '01.)
- Issues in Agriculture, Environment
and Life Sciences, InterAg 155 (freshman seminar; instructor/mentor)
Graduate Students:
- Leslie Sherman
(PhD): Completed degree, 17 Apr 1997
- Kang Xia
(PhD; Dr. Philip Helmke, coadvisor): Completed degree, Nov 1996
- Babou Jobe (MSc): Completed degree,
18 Jan 1996
- Gulden Zont (MSc): Completed
degree, Aug 1997
- Mauricio Avila (PhD) Completed
MSc degree, May 1999
- DD Levine (MSc) Completed MSc degree, June 2000
- Jim Lyne (MSc) Completed MSc degree, Aug 2002
- Mauricio Avila (PhD) Completed
PhD degree, May 2004
- Juli Meyer (MSc) Completed
MSc degree, Aug 2004!!
- Merin Abraham (MSc) (current)
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Link to Department of Soil
Science, University of Wisconsin-Madison.
Last modified 22 Jul 2007 by Phillip Barak.