Thomas E. Loynachan

Professor Emeritus of Agronomy
Professor Emeritus of Microbiology


Iowa State University
Department of Agronomy
1126H Agronomy
Ames, Iowa 50011-1010

Office: 515-294-3064
FAX: 515-294-8146
e-mail:teloynac@iastate.edu

Tom Loynachan (pronounced "law-na-cun") received his Bachelor of Science Degree from Iowa State University in 1968. He taught Vocational Agriculture at Grinnell, IA only a short time before being drafted into the U.S. Army. After honorable discharge, he received his Master of Science Degree in Soil Microbiology and Biochemistry from Iowa State in 1972 and his Doctor of Philosophy Degree in Soil Science from North Carolina State University in 1975. From 1975 until 1978, he was on the staff as an assistant professor at the University of Alaska doing research on oil-spill remediation. He was a member of the Department of Agronomy at Iowa State from March 1978 until his retirement in July 2016. He currently is professor emeritus.


Teaching:

Dr. Loynachan had a 90% teaching appointment. His recent courses included:

Agron 354. Soils and Plant Growth. (Cross-listed with Hort). (3-0) Cr. 3. F.S.Prereq: Agron 154 and Biol 101 or 211. Loynachan. Effects of chemical, physical, and biological properties of soils on plant growth, with emphasis on nutritive elements, pH, organic matter maintenance, and rooting development. Nonmajor graduate credit.

Agron 485/585. Soil and Environmental Microbiology. (Cross-listed with EnSci, Micro). (2-3) Cr. 3. F.Prereq: 154 or 402, Micro 201 (Micro 203 recommended). Loynachan. The living organisms in the soil and what they do. Emphasis on soil biota composition, the carbon cycle and bioremediation, soil-plant-microbial relationships, and environmental issues. Nonmajor graduate credit.

Agron 496. (Taught with Econ 496). (2-0 weekly plus 10 days travel) Cr. 3. S. Loynachan, Lence, and Luvaga. Limited enrollment. Tour and study of production methods in major crop and livestock regions of the world. Influence of climate, economics, geography, soils, landscapes, markets, and other factors on crop and livestock production. Location and duration of tours vary. Tour expenses paid by students.

Agron 500. Orientation Seminar. (2-0) Cr. 1. F.Prereq: International agronomy graduate students only. Loynachan and Lamkey. An introduction to Iowa and U.S. agriculture for international scholars in agronomic majors. Field trips when possible. Departmental role in the functioning of research, teaching, and extension in fulfilling the charge given the land-grant university.

Agron 512. Soil-Plant Environment. (3-0) Cr. 3. S.Prereq: 502. Recommended 501. Loynachan. Soil properties and their impact on soil/plant relationships. Soil structure, aeration, moisture, and nutrients will be discussed in the context of soil fertility and environmental quality management. Required course for the Master of Science in Agronomy degree program.


Research:

Dr. Loynachan had a 10% research appointment. Research activities centered around organismal ecology in soil, including establishment, persistence, and environmental interactions of organisms. Efforts were mainly directed at field ecology relationships. Earlier worked involved Bradyrhizobium on soybean and more recent work the mycorrhizae of soybean.

Selected Research Publications and Educational Media (more recent years):

Troeh, Z. I., and T. E. Loynachan. 2003. Endomycorrhizal fungal survival in continuous corn, soybean, and fallow. Agron. J. 95:224-230.

Ishii, S., and T. E. Loynachan. 2004. Rapid and reliable DNA extraction techniques from trypan-blue-stained mycorrhizal roots: comparison of two methods. Mycorrhiza 14:271-275.

Loynachan, T. E., K. W. Brown, T. H. Cooper, J. M. Kimble, M. H. Milford, and D. B. Smith. 2005. Soils, society, and the environment (book). American Geological Institute (with Soil Science Society of America), Washington, D.C.

Loynachan, T. E. 2006. Quick, easy method to show living soil organisms to high school or beginning-level college students. J. Nat. Res Life Sci. Ed. 35:202-208.

Loynachan, T. E. 2006. The soil food chain [Online]. Available at http://www.microbelibrary.org/library/resources/3137-soil-food-chain. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2006. Vorticella [Online]. Available at http://www.microbelibrary.org/library/parasite/3104-vorticella. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2006. Depth of field [Online]. Available at http://www.microbelibrary.org/library/microscopy/3094-microscopic-depth-of-field-and-magnification. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2007. Endomycorrhizae [Online]. Available at http://www.microbelibrary.org/library/fungi/3109-endomycorrhizae. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2007. Nematode-trapping fungi [Online]. Available at http://www.microbelibrary.org/library/fungi/3103-nematode-trapping-fungi. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2007. Ectomycorrhizae [Online]. Available at http://www.microbelibrary.org/library/fungi/3110-ectomycorrhizae. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2008. Soil biology (laboratory manual). Iowa State University Bookstore, Ames.

Loynachan, T. E. 2008. Soil algae [Online]. Available at http://www.microbelibrary.org/library/resources/3177-soil-algae. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2008. Soil actinomycetes [Online]. Available at http://www.microbelibrary.org/library/fungi/3180-soil-actinomycetes. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2008. Soil bacteria [Online]. Available at http://www.microbelibrary.org/library/bacteria/3179-soil-bacteria. MicrobeLibrary. American Society for Microbiology.

Loynachan, T. E. 2008. Soil fungi [Online]. Available at http://www.microbelibrary.org/library/fungi/3178-soil-fungi. MicrobeLibrary. American Society for Microbiology.

Lindbo, D.L., W. Greenberg, L. Hartley, J. Halvin, T. Loynachan, M. Mbila, B. Mobieus, E. Stockman, J. Boettinger, M. Collins, J. Omueti, D. Osborne, D. Kozlowski, C. Ping, R. Weil. 2008. Soil! Get the inside scoop (book). Soil Science Society of America, Madison.

Kim, D.-G., T. M. Isenhart, T. B. Parkin, .R. C. Schultz, T. E. Loynachan, and J. W. Raich. 2009. Nitrous oxide emissions from riparian forest buffers, warm-season and cool-season grass filters, and crop fields. Biogeosciences Discuss. 6:607-650.

Kim, D.-G., T. M. Isenhart, T. B. Parkin, R. C. Schultz, and T. E. Loynachan. 2009. Nitrate and dissolved nitrous oxide in groundwater within cropped fields and riparian buffers. Biogeosciences Discuss. 6:651-685.

Troeh, Z. I., and T. E. Loynachan. 2009. Diversity of arbuscular mycorrhizal fungal species in soils of cultivated soybean fields. Agron. J. 101:1453-1462.

Kim, D.-G, T. M. Isenhart, T. B. Parkin, R. C. Schultz, and T. E. Loynachan. 2010. Methane flux in cropland and adjacent riparian buffers with different vegetation covers. J. Environ. Qual. 39:97-105.

Zhang J., T. E. Loynachan, and J. W. Raich. 2011. Artificial soils to assess temperature sensitivity of the decomposition of model organic compounds: effects of chemical recalcitrance and clay-mineral composition. Eur. J Soil Science 62:863-873 .

Brewer, C. E., Y. Hu, K. Schmidt-Rohr, T. E. Loynachan, D. A. Laird, and R. C. Brown. 2012. Extent of pyrolysis impacts on fast pyrolysis biochar properties. J. Environ. Qual. 41:1115-1122.

Loynachan, T. E. 2012 Soil biology: The living component of soil. pp. 49-67. In: D. Lindo et al. (ed.), Know Soil Know Life, Soil Sci. Soc. of Amer., Madison.

Loynachan, T. E. 2013. Human disease from introduced and resident soilborne pathogens. pp. 107-136. In: E. Brevik and L Burgess (ed.), Soils and Human Health, CRC Press, Boca Raton.

Haddad, S., M. A. Tabatabai, and T. E. Loynachan. 2013. Biochemical processes controlling soil nitrogen mineralization under waterlogged conditions. Soil Sci. Soc. of Amer. 77:809-816.

Haddad, S., M. A. Tabatabai, A. A. Abdel-Moneim, and T. E. Loynachan. 2015. Inhibition of nodulation and nitrogen nutrition of leguminous crops by selected heavy metals. Air, Soil and Water Research 8:17.


If you REALLY want to be bored, read my complete CV.


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Feedback on my page to teloynac@iastate.edu
This page updated July 2016
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