University of Minnesota
College of Food, Agricultural and Natural Resource Sciences
http://www.cfans.umn.edu
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Department of Soil, Water, and Climate

Paul Bloom

prb@umn.edu | 612-625-4711
Paul Bloom
460 Borlaug Hall
1991 Upper Buford Circle
St. Paul MN 55108


Education:

B.S.1970University of MontanaSecondary Education
M.S.1972University of MontanaTeachers - Chemistry
Ph.D.1978Cornell UniversitySoil Chemistry



I am interested in the applications of basic principles of chemistry to problems in soil science. One important area of interest is the interactions of various elements with soil organic matter. Recently I have used x-ray spectroscopy to elucidate the chemistry of phosphorus, sulfur and mercury in soil organic matter. I also have worked with wild rice growers on problems related to plant nutrition and I continue a long-standing interest in the problem of iron deficiency chlorosis in soybeans.

Graduate Programs:
Land and Atmospheric Science

Selected Publications:
Skyllberg U, PR  Bloom, J Qian, C-M Lin and WF Bleam 2006 Complexation of mercury(II) in soil organic matter: EXAFS evidence for linear two-coordination with reduced sulfur groups. Environ. Sci. and Tech. 40 (13): 4174-4180

Khwaja, A.R., P.R. Bloom, and P.L. Brezonik (2006) Binding constants of divalent mercury (Hg2+) in soil humic acids and soil organic matter. Environ. Sci. and Tech. 40(3); 844-849.

Skyllberg U, PR  Bloom, J Qian, C-M Lin and WF Bleam 2006 Complexation of mercury(II) in soil organic matter: EXAFS evidence for linear two-coordination with reduced sulfur groups. Environ. Sci. and Tech. 40 (13): 4174-4180.

P.R. Bloom, U.L. Skyllberg M. E. Sumner 2005. .Soil Acidity pp. 411 - 460 In A. Tabatabai and D. Sparks eds. .Chemical processes in soils, SSSA Book Series No. 8. Soil Sci. Soc. Am. Madison.

Zhang, H. and P.R. Bloom. 1999. The dissolution of hornblende in organic acid solution. soil Sci. Soc. Am. 39:815-822.

Xia, K., F. Wessner, W. Bleam, P.R. Bloom, U.L. Skyllberg, and P.A. Helmke. 1998. XANES studies of oxidation states of S in soil and aquatic humic substances. Soil Sci. Soc. Am. J. 62:1240-1246.

P.R. Bloom 1999. Soil pH and pH buffering. pp. B.333-B.350 M.E. Sumner (ed.) Handbook of Soil Science. CRC Press, Boca Raton.

M. Badraoui, P.R.Bloom, and R. Bouabid 1992 Palygorskite-Smectite association in a Xerochrept of the High Chaouia region of Morocco. Soil Sci.Soc. Amer.J.  56:1640-1646.

Inskeep, W.P., and P.R. Bloom. 1986. Effects of soil moisture on soil pCO2 soil solution bicarbonate and iron chlorosis in soybeans. Soil Sci. Soc. Am. J. 50:946–952.

Inskeep, W.P. and P.R. Bloom. 1986. Kinetics of calcite precipitation in the presence of water soluble organic ligands.  Soil Sci. Soc. Am. J. 50:1167–1172.