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Michael E. Essington
Soil Chemistry and Mineralogy

Mark A. Radosevich
Soil microbiology & biochemistry

Sarah W. Keenan
Biogeochemistry, microbial ecology, paleobiology

Groups and Facilities

(1 mention)

UT Beef and Forage Center 
Facilitating research and communication to advance the Tennessee Beef and Forage industry.



Faculty 360 | Tao Wu, 1/11/2018


(3 mentions)

Soil Testing 
If youíre looking for a healthy garden or green grass, itís good to know the content of your soil. UT Extension offers inexpensive soil tests, and itís all done in a special lab in Nashville.

(3 mentions)

Sweet corn 
UT AgResearchers applied herbicides to experimental sweet corn to keep weeds away. But something unexpected happened -- they boosted the nutritional value of the corn.

(1 mention)

Weed Progress 
Weeds are a nuisance to gardeners, but downright devastating to those who farm for a living. But now experts and farmers say the worst may be behind us.

(1 mention)

No-Till Hills 
There was a time when sloped land was just about useless because of frequent soil erosion. But now, hilly terrain can be productive. 'No-tillĒ farming makes it possible.

(1 mention)

Little River Facility 
Itís long been an issue in farming Ė how can we be productive in agriculture and still protect the environment? UT Ag-Research has a new facility dedicated to that cause.


Recent Publications

Best Management Practices for Livestock Production and Operations in Karst Areas.  Harry Moore, and E. C. Drumm.  2018.  Extension web publication W 453-B. [Abstract]

Switchgrass Cultivar, Yield, and Nutrient Removal Responses to Harvest Timing Ashworth, A. J., F. L. Allen, J. L. Bacon, C. E. Sams, W. E. Hart, J. F. Grant, P. A. Moore, and D. H. Pote.  2017.  Agronomy Journal, Vol 109(6):1-8. [Abstract]

Applications of abscisic acid and calcium treatments affects the concentrations of mineral nutrients in tomato leaf and fruit tissue.  Barickman, T. C., D. A. Kopsell, and C. E. Sams.  2017.  Scientia Horticulturae, In Review.

Effect of Different Cover Crop Species on Crop Production and Soil Health.  Chu, M.  2017.  M.S. Thesis, University of Tennessee. [Abstract]

Influence of soil nutrients on plant nutrition for white-tailed deer.  Harper, C. A., M. A. Lashley, J. S. Nanney, and B. K. Strickland.  2017.  Southeast Deer Study Group Meeting, St. Louis, MO.

Lowering rumen-degradable protein maintained energy-corrected milk yield and improved nitrogen-use efficiency in multiparous lactating dairy cows exposed to heat stress Kaufman, J.D., K. R. Kassube, and A. Rius.  2017.  Journal of Dairy Science, October 2017 Volume 100, Issue 10, Pages 8132Ė8145. [Abstract]

Abscisic Acid Impacts Tomato Carotenoids, Soluble Sugars, and Organic Acids.  Barickman, T. C., D. A. Kopsell, and C. E. Sams.  2016.  HortScience, 51(4):1-7. [Abstract]

Elevated Levels of Potassium in Greenhouse-grown Red Romaine Lettuce Impacts Mineral Nutrient and Soluble Sugar Concentrations.  Barickman, T. C., T. E. Horgan, J. R. Wheeler, and C. E. Sams.  2016.  HortScience, 51(9):504-509. [Abstract]

Effect of biochar on nutrient release and retention in container crops.  Basiri, N., F. R. Walker, A. Fulcher, and J. Altland.  2016.  Proceedings of Southern Nursery Association Research Conference, 61:174-180. [Abstract]

Surveying the Near-Surface Fibrous Roots of The Orange Tree With 3-D GPR Freeland, R. S.  2016.  Applied Engineering in Agriculture, †32(2): 145-153. [Abstract]

Simulated Flood of a Small Constructed Floodplain Wetland in Virginia: Event-Scale Pollutant Attenuation Ludwig, A. L., W. C. Hession, D. T. Scott, and D. L. Gallagher.  2016.  Transactions of the ASABE, 59(5): 1319-1329. [Abstract]

Light quality impacts on growth, flowering, mineral uptake and petal pigmentation of marigold Sams, C. E., D. A. Kopsell, and R. C. Morrow.  2016.  Acta Horticulturae, Acta Horticulturae 1134:139-145 iSHS. [Abstract]