1. Staff

Jon Biermacher, Ph.D. Publications

Publication List

ShalekBriski, A., Brorsen, B. W. & Biermacher, J. T. (2020). Institutional Solutions for the Economic Problem of Feral Hogs. Applied Economics Perspectives and Policy, (epub ahead of print), 1-15.

Biermacher, J. T., Brorsen, B. W. & Moore, B. (2020). Stocker Cattle Transitioning to Wheat Pasture May Not Need Supplement. Noble News & Views, 38 (9).

Beck, P., Beck, M. R., Gunter, S. A., Biermacher, J. T. & Gillen, R. L. (2020). Stocking rate impacts performance and economics of grazing beef steers on mixed-grass prairies of the Southern Great Plains. Translational Animal Science, 4 (3), txaa134 https://doi.org/10.1093/tas/txaa134.

ShalekBriski, A., Brorsen, B. W., Rogers, J. K. & Biermacher, J. T. (2020). Design of the Rainfall Index Annual Forage Program. Agricultural Finance Review, (epub ahead of print).

Ouedraogo, F. B., Brorsen, B. W., Biermacher, J. T. & Rohla, C. T. (2020). Effects of Pruning at Planting on Pecan Trunk Development and Total Shoot Growth. HortTechnology, 30 (2), 248-250 doi: https://doi.org/10.21273/HORTTECH04535-19.

Lira, S. M. & Biermacher, J. T. (2019). You can retain, feed and rebreed open cows profitably — sometimes. Noble News & Views, 37 (9), 9-11.

Lira, S. M., Biermacher, J. T., Whitley, E. & Ford, D. (2019). Strategies for managing open beef cows. Journal of Animal Science, 97 (Supplement_1 Meeting Abstract 185), 63 doi: 10.1093/jas/skz053.142.

Hounnou, L., Brorsen, B. W., Biermacher, J. T. & Rohla, C. T. (2019). Foliar applied zinc and the performance of pecan trees. Journal of Plant Nutrition, 42 (5), 512-516 doi: 10.1080/01904167.2019.1567771.

ShalekBriski, A., Brorsen, B. W., Biermacher, J. T., Rohla, C. T. & Chaney, W. (2019). Effect of Irrigation Method on tree growth, foliar nutrient levels, and nut characteristics of young pecan trees in the Southern Great Plains. HortTechnology, 29 (2), 109-113 doi: 10.21273/HORTTECH04162-18.

Childs, D. & Biermacher, J. T. (2019). Planning for the transfer of your estate . Noble News & Views, 37 (2), 9-10.

Cho, W., Brorsen, B. W., Biermacher, J. T. & Rogers, J. K. (2019). Rising plate meter calibrations for forage mass of wheat and rye. Agricultural & Environmental Letters, 4, 180057 doi:10.2134/ael2018.11.0057.

Ouedraogo, F. B., Brorsen, B. W., Biermacher, J. T. & Rohla, C. T. (2018). Alternate methods of transplanting pecan trees. HortTechnology, 28 (6), 795–798 doi: 10.21273/HORTTECH04180-18 .

Butler, T. J., Biermacher, J. T., Hoffman, J. K. & Interrante, S. M. (2018). Grazing systems research update: Year-round forage options. Noble News & Views, 36 (11), 11-12.

Trammell, M. A., Butler, T. J., Young, C. A., Widdup, K., Amadeo, J., Hopkins, A. A., Nyaupane, N. P. & Biermacher, J. T. (2018). Registration of ‘Chisholm’ Summer-Dormant Tall Fescue. Journal of Plant Registrations, 12 (3), 293-299 doi:10.3198/jpr2018.01.0001crc.

Biermacher, J. T., Nyaupane, N. & Rogers, J. L. (2018). Economics of no-tilling cereal rye pastures. Noble News & Views, June 1, pg. 3-5.

Biermacher, J. T., Haque, M., Mosali, J. & Rogers, J. K. (2017). Economic feasibility of using switchgrass pasture to produce beef cattle gain and bioenergy feedstock . BioEnergy Research, 10 (3), 740-749 doi: 10.1007/s12155-017-9835-6.

Biermacher, J. T., Haque, M. & Beck, P. (2017). Study reveals legume-fescue mixture economics. Ag News and Views, 31 (11), 4.

Beck, P., Stewart, C. B., Gadberry, M. S., Haque, M. & Biermacher, J. T. (2016). Effect of mature body weight and stocking rate on cow and calf performance, cow herd efficiency, and economics in the southeastern United States. Journal of Animal Science, 94 (4), 1689-1702 doi: https://doi.org/10.2527/jas.2015-0049.

Biermacher, J. T., Rogers, J. K. & Biedenbach, A. (2016). Research shows economics of pasture conversion. Ag News and Views, 34 (5), 4.

Biermacher, J. T., Bradley, J. & Rogers, J. K. (2016). Noble Foundation reports expected forage establishment costs. Ag News and Views, 34 (8), 1-2.

Nyaupane, N., Biermacher, J. T. & Gillespie, J. (2016). Survey examines Oklahoma, Texas meat goat industry. Ag News and Views, 34 (9), 1-2.

Biermacher, J. T., Maples, J. & Brorsen, B. W. (2015). New crop insurance option protects producers. Ag News and Views, 33 (4), 3.

Biermacher, J. T. (2015). New center provides economic information to producers. Ag News and Views, 33 (8), 1-2.

Biermacher, J. T. (2015). Factors affect sustainable forage production systems. Ag News and Views, 33 (9), 7.

Funderburg, E., Locke, J. & Biermacher, J. T. (2014). Using Aminopyralid Preemergent in Pastures for Western Ragweed Control. Samuel Roberts Noble Foundation, NF-SO-14-01.

Rogers, J. K., Nichols, B., Biermacher, J. T. & Mosali, J. (2014). The value of native, warm-season perennial grasses grown for pasture or biofuel in the southern Great Plains, USA. Crop and Pasture Science, 65 (6), 550-555 doi: https://doi.org/10.1071/CP13396.

Biermacher, J. T. (2014). NSF grant enhances Oklahoma research infrastructure. Ag News and Views, 32 (2), 5.

Biermacher, J. T., Raper, K. & Cook, B. J. (2014). Alternative culling method increases profits. Ag News and Views, 32 (7), 4.

Biermacher, J. T. & Brorsen, B. W. (2014). Lime cost affects the economics of nitrogen use. Ag News and Views, 32 (11), 7.

Haque, M., Epplin, F. M., Biermacher, J. T., Holcomb, R. B. & Kenkel, P. L. (2014). Marginal cost of delivering switchgrass feedstock and producing cellulosic ethanol at multiple biorefineries. Biomass and Bioenergy, 66, 308-319 http://dx.doi.org/10.1016/j.biombioe.2014.02.004.

Funderburg, E., Locke, J. & Biermacher, J. T. (2014). Evaluation of aminopyralid applied PRE to control western ragweed (Ambrosia psilostachya) in Oklahoma pastureland. Weed Technology, 28, 395-400.

Amadou, Z., Raper, K., Biermacher, J. T., Cook, B. J. & Ward, C. (2014). Net returns from feeding cull beef cows: the influence of initial body condition score. Journal of Agricultural and Applied Economics, 46 (1), 139-155.

Gaskamp, J.A. & Biermacher, J. T. (2013). BoarBuster™ thinks outside the box trap. Ag News and Views, 31 (7), 1-2.

Haque, M., Biermacher, J. T., Kering, M. K. & Guretzky, J. (2013). Economic evaluation of switchgrass feedstock production systems tested in potassium-deficient soils. BioEnergy Research, 7, 260-267 08.

Kering, M. K., Guretzky, J., Interrante, S. M., Butler, T. J., Biermacher, J. T. & Mosali, J. (2013). Harvest timing affects switchgrass production, forage nutritive value, and nutrient removal. Crop Science, 53, 1809-1817 doi:10.2135/cropsci2012.10.0568.

Biermacher, J. T., Rogers, J. K. & Reuter, R. R. (2013). Do high nitrogen prices justify feeding soybean hulls? Ag News and Views, 31 (1), 4.

Haque, M., Biermacher, J. T., Kering, M. K. & Guretzky, J. (2013). Economics of alternative fertilizer supply systems for switchgrass produced in phosphorus-deficient soils for bioenergy feedstock. BioEnergy Research, 6 (1), 351-357 10.1007/s12155-012-9264-5.

Funderburg, E., Locke, J. & Biermacher, J. T. (2012). Effect of Herbicides and Mowing on Greenbrier (Smilax bona-nox) in Oklahoma Rangeland. In Proceedings of the 5NGCL Conservation Grazing Lands Initiative meeting ..

Funderburg, E., Locke, J. & Biermacher, J. T. (2012). Effect of Herbicides and Mowing on Greenbrier (Smilax bona-nox) in Oklahoma Rangeland. Proceedings of the 5NGCL Conservation Grazing Lands Initiative meeting, .

Butler, T. J., Biermacher, J. T., Kering, M. K. & Interrante, S. M. (2012). Production and economics of steers grazing tall fescue with annual legumes or fertilized with nitrogen. Crop Science, 52 (4), 1931-1939 doi: 10.2135/cropsci2011.11.0610.

Biermacher, J. T. & Funderburg, E. (2012). Hay choices for cattle producers and equine enthusiasts. Ag News and Views, 30 (8), 4-5.

Mosali, J., Biermacher, J. T., Cook, A. & Blanton, J. R. (2012). Bioenergy for Cattle and Cars: A Switchgrass Production System that Engages Cattle Producers. Agronomy Journal, 105 (4), 960-966 10.2134/agronj2012.0384.

Haque, M., Biermacher, J. T., Kering, M. K. & Guretzky, J. (2012). Managing nitrogen and phosphorus nutrients for switchgrass produced for bioenergy feedstock in phosphorus-deficient soil. University of Nebraska Lincoln/Extension, Agronomy and Horticulture, Faculty publications.

Kering, M. K., Butler, T. J., Biermacher, J. T., Mosali, J. & Guretzky, J. (2012). Effect of potassium and nitrogen fertilizer on switchgrassproductivity and nutrient removal rates under two harvestsystems on a low potassium soil. BioEnergy Research, 6 (1), 329-335 10.1007/s12155-012-9261-8.

Biermacher, J. T., Childs, D. & Blanton, J. R. (2012). Guar beans can serve as alternative crop. Ag News and Views, 30 (11), 4-5.

Funderburg, E.R., J.T. Biermacher, C. Moffett, M. Haque, and J. Mosali (2012). Effect of nitrogen rate on yield of nine warm-season introduced perennial forage varieties NS-SO-12-01. Ardmore, Oklahoma: Samuel Roberts Noble Foundation.

Biermacher, J. T., Reuter, R. R., Kering, M. K., Rogers, J. K., Blanton, J. R., Guretzky, J. & Butler, T. J. (2012). Expected economic potential of substituting legumes for nitrogen in bermudagrass pastures. Crop Science, 52 (4), 1923-1930 doi:10.2135/cropsci2011.08.0455.

Beck, P., Haque, M., Biermacher, J. T., Hopkins, A. A., Hubbell, D.S. & Hess, T. (2012). Impact of clover additions to toxic or nontoxic endophyte-infected tall fescue on animal performance and economics of stocker programs. Professional Animal Scientist, 28 (4), 433-442.

Haque, M., Biermacher, J. T., Guretzky, J., & Kering, M. K. (2012). Does soil nutrient mining and remobilization affect harvest strategy and nutrient management decisions for switchgrass feedstock? In Agricultural and Applied Economics Association’s Annual Meeting August 14-16 .Seattle, WA: Agricultural and Applied Economics Association.

Donnell, J.D., Biermacher, J.T., Upson,S. (2012). The economics of spinach and tomatoes grown in hoop houses NF-AE-12-02. Ardmore, Oklahoma: Samuel Roberts Noble Foundation.

Donnell, J.D., Biermacher, J.T., Upson, S. (2012). The economics of strawberries and squash grown in hoop houses NF-AE-12-01. Ardmore, Oklahoma: Samuel Roberts Noble Foundation.

Butler, T. J., Biermacher, J. T., Kering, M. K. & Interrante, S. M. (2012). Production and economics of grazing steers on rye–annual ryegrass with legumes or eertilized with nitrogen. Crop Science, 52 (4), 1931-1939 doi:10.2135/cropsci2011.11.0611.

Funderburg, E., Biermacher, J. T., Moffet, C., Alkire, D. O. & Mosali, J. (2012). Effects of applying five nitrogen rates on quality of nine varieties of introduced perennial forages. Forage and Grazinglands, May 17, doi:10.1094/FG-2012-0517-01-RS.

Butler, T. J., Biermacher, J. T., Interrante, S. M., Sledge, M. K., Hopkins, A. A. & Bouton, J. H. (2012). Production and economics of grazing alfalfain the Southern Great Plains. Crop Science, 52 (3), 1424–1429 doi:10.2135/cropsci2011.08.0453.

Funderburg, E., Biermacher, J. T. (2012). Effect of fertilizer on yield of native grass NF-SO-12-02. Ardmore, Oklahoma: Samuel Roberts Noble Foundation.

Haque, M., Biermacher, J. T., Kering, M. K. & Guretzky, J. (2012). Managing nitrogen and phosphorus nutrients for switchgrass produced for bioenergy feedstock in phosphorus-deficient soil. In Southern Agricultural Economics Association Annual Meeting February 4-7, 2012 .Birmingham, Alabama: Southern Agricultural Economics Association.

Biermacher, J. T., Interrante, S. M., Bouton, J. H. & Butler, T. J. (2012). The economic potential of grazing-tolerant alfalfa. Ag News and Views, 30 (2), 6.

Kering, M. K., Butler, T. J., Biermacher, J. T. & Guretzky, J. (2012). Biomass yield and nutrient removal rates of perennial grasses under nitrogen fertilization. BioEnergy Research, 5, 61-70 doi:10.1007/s12155-011-9167-x.

Funderburg, E., Biermacher, J. T., Moffet, C., Haque, M. & Mosali, J. (2011). Effects of nitrogen application on yield of introduced perennial summer grass cultivars in Oklahoma. Forage and Grazinglands, 9 (1), doi:10.1094/FG-2011-1223-01-RS.

Tumusiime, E., Brorsen, B. W., Mosali, J., Johnson, J. P., Locke, J., & Biermacher, J. T. (2011). Determining optimal levels of nitrogen fertilizer using random parameter models. Journal of Agricultural and Applied Economics, 43, 541–552.

Funderburg, E., Biermacher, J. T., Moffet, C. , Haque, M., & Mosali, J. (2011). Effects of applying nitrogen on yield of introduced perennial summer grass cultivars in Oklahoma. Forage and Grazinglands, December, doi:10.1094/FG-2011-1223-01-RS.

Brorsen, B. W., Tumusiime, E., Johnson, J. P., Mosali, J., & Biermacher, J. T. (2011). Determining optimal levels of nitrogen fertilizer using random parameter models. Journal of Agricultural and Applied Economics, 43 (4), 541–552.

Reuter, R. R., Childs, D., Belk, K.E., Machado, T.J., & Biermacher, J. T. (2011). Effects of USDA feeder cattle frame and muscle grades on stocker and feeder cattle performance and profitability. Professional Animal Scientist, 27 (6), 525-534.

Funderburg, E., Locke, J. & Biermacher, J. T. (2011). Evaluation of herbicides and mowing on catbriar (Smilax bona-nox) in Oklahoma rangeland. Weed Technology, July, doi: 10.1614/WT-D-11-00041.1.

Biermacher, J. T., Haque, M. & Kering, M. K. (2011). Soil nutrient mining and switchgrass management. Ag News and Views, 29 (6), 6.

Donnell, J. D., Biermacher, J. T. & Upson, S. (2011). The economics of hoop house fruits and vegetables. Ag News and Views, 29 (3), 1-2.

Islam, M. A., Biermacher, J. T., Interrante, S. M., Reuter, R. R., Hopkins, A. A., Cook, B. J., Bouton, J. H. & Butler, T. J. (2011). Production and economics of grazing rye-annual ryegrass and tall fescue systems. Agronomy Journal, 103 (2), 558-564 doi:10.2134/agronj2010.0325.

Donnell, J. D. , Biermacher, J. T., & Upson, S. (2011). Economic potential of using high tunnel hoop houses to produce fruits and vegetables. In Southern Agricultural Economics Association Annual Meeting February 5-8, 2011 .Corpus Christi, TX: Southern Agricultural Economics Association.

Amadou, Z., Raper, K., Ward, C., Biermacher, J. T., & Cook, B. J. (2011). Determining key factors of influence on the profitability of retaining cull cows beyond culling (abstract). In Southern Agricultural Economics Association Annual Meeting .Corpus Christi, TX: Southern Agricultural Economics Association.

Tumusiime, E., Brorsen, B. W., Mosali, J. & Biermacher, J. T. (2011). How much does considering the cost of lime affect the recommended level of nitrogen. Agronomy Journal, 103 (2), 404-412 doi:10.2134/agronj2010.0355.

DeVuyst, E. A., Biermacher, J. T., Lusk, J. L., Blanton, J. R., Swigert, S., Cook, B. J., & Reuter, R. R. (2011). Relationships between fed cattle traits and Igenity panel scores. Journal of Animal Science, January 28, 2009-2372 doi:10.2527/jas.2009-2372 .

Guretzky, J., Biermacher, J. T., Cook, B. J., Kering, M. K., & Mosali, J. (2011). Switchgrass for forage and bioenergy: Harvest and nitrogen rate effects on biomass yields and nutrient composition. Plant and Soil, 339 (1-2), 69-81 DOI:10.1007/s11104-010-0376-4.

Kering, M. K., Biermacher, J. T., Reuter, R. R., Butler, T. J., Springer, J. D., Rogers, J. K., Blanton, J. R., Bouton, J. H. & Guretzky, J. (2010). Economic potential of substituting legumes for synthetic nitrogen in warm season perennial grasses used for stocker cattle grazing/ NF-AG67. In Southern Agricultural Economics Association Annual Meeting ..

Biermacher, J. T., Butler, T. J. & Reuter, R. R. (2010). The economics of novel endophyte tall fescue. Ag News and Views, 28 (12), 6.

Pittman, J. J., Biermacher, J. T., Reuter, R. R. & Butler, T. J. (2010). Evaluation of pre- and post- emergent herbicides to seven warm-season legumes (abstract). In Proceedings American Forage and Grassland Council Conference-Volume 19 Springfield, Mo 2010 .Georgetown, Tx: American Forage and Grassland Council.

Amadou, Z., Biermacher, J. T., Cook, B. J., & Ward, C. (2010). Adding value to cull cows. Oklahoma Cooperative Extension Service , Part II, AGEC-725.

Funderburg, E., & Biermacher, J. T. (2010). Effects of fertilizing and applying herbicide on yield, quality and expected profitability of native grass . Forage and Grazinglands, Plant Management Network, DOI:10.1094/FG-2010-1015-01-RS.

Guretzky, J., Kering, M. K., Mosali, J., Funderburg, E., & Biermacher, J. (2010). Fertilizer rate effects on forage yield stability and nutrient uptake of Midland Bermudagrass. Journal of Plant Nutrition, 33 (12), 1819-1834.

Kering, M. K., Biermacher, J. T., Reuter, R. R., Butler, T. J., Springer, J. D., Rogers, J. K., Blanton, J. R., Bouton, J. H., & Guretzky, J. (2010). Economic potential of substituting legumes for synthetic nitrogen in warm season perennial grasses used for stocker cattle(abstract). In Southern Agricultural Economics Association 42nd Annual Meeting .Orlando, Florida: Southern Agricultural Economics Association.

Amadou, Z., Raper, K., Biermacher, J. T., Cook, B. J., & Ward, C. (2010). Influence of beginning body condition scores on net returns from feeding cull cows(abstract). In Agricultural & Applied Economics Association 2010 AAEA, CAES, & WAEA Joint Annual Meeting .Denver, Colorado: Agricultural & Applied Economics Association.

Biermacher, J. T., Reuter, R. R. & Kering, M. K. (2010). The economics of N-fixing legumes in bermudagrass pastures. Ag News and Views, 28 (5), 2-3.

Tumusiime, E., Brorsen, B. W., Mosali, J., & Biermacher, J. T. (2010). Effect of nitrogen fertilization and liming in ryegrass yield and soil pH dynamics (abstract). In Agricultural and Applied Economics Association Annual Meeting .Denver,Colorado: Agricultural and Applied Economics Association.

Tumusiime, E., Brorsen, B. W., Mosali, J., Johnson, J. P., Locke, J., & Biermacher, J. T. (2010). Determining optimal levels of nitrogen fertilizer using random parameter model(abstract). In Southern Agricultural Economics Association Annual Meeting .Orlando, Florida: Southern Agricultural Economics Association.

Biermacher, J. T., Coffey, C., Cook, B. J., Childs, D., Johnson, J. P. & Ford, D. (2009). Economic potential of no-till winter cereal forages. In 17th International Farm Management Association's Congress .Bristol, United Kingdom: International Farm Management Association.

Oswald, D. & Biermacher, J. T. (2009). Implications of proposed cap-and-trade: New policy would impact farmers. BEEFmagazine.com, June 14.

Biermacher, J. T. & Cook, B. J. (2009). Managing cull cows: The Noble Foundation studies viable options for selling cull cows. BEEFmagazine.com, August 5.

Biermacher, J. T. & Cook, B. J. (2009). The Noble Foundation studies viable options for selling cull cows. BEEFmagazine.com, August 5.

Biermacher, J. T., Alkire, D. O., Childs, D. & Springer, J. D. (2009). The Noble Foundation discovered marketing attributes from survey of 32 natural beef companies. BEEFmagazine.com, May 6.

Biermacher, J. T., Blanton, J. R., Reuter, R. R. & Springer, J. D. (2009). Evaluating marketing strategies to gain premiums for value-added cattle. BEEFmagazine.com, March 2.

Oswald, D. & Biermacher, J. T. (2009). New policy would impact farmers. BEEFmagazine.com, June 14.

Oswald, D., & Biermacher, J. (2009). Overview of the cap-and-trade bill. Land & Livestock Post, December 1, p. 15.

Biermacher, J., & Cook, B. J. (2009). Results released on first-year cull-cattle study. Land & Livestock Post, December 1, p. 11.

Biermacher, J. (2009). Value of pregnancy testing is $77 per cow. Land & Livestock Post, December 1, p. 3.

Guretzky, J., Biermacher, J. T., Reuter, R. R., Blanton, J. R., Mosali, J., Kering, M. K., & Cook, B. J. (2009). Utilization of switchgrass in a dual purpose stocker cattle and bioenergy system(abstract). In Joint Annual Meeting ADSA.CSAS.ASAS 2009 (pp. 573 #759). Montreal, Quebec, Canada: ADSA.CSAS.ASAS.

Guretzky, J., Reuter, R. R., Biermacher, J. T., Springer, J. D., Butler, T. J., Aljoe, H. D., Rogers, J. K. & Cook, B. J. (2009). Economic potential of stocker cattle grazing legume-interseededbermudagrass(abstract). In Joint Annual Meeting ADSA.CSAS.ASAS 2009 (pp. 573 Article# 757). Montreal, Quebec, Canada: ASAS.

Biermacher, J. T., Reuter, R. R., Cook, B. J., Islam, M. A., Hopkins, A. A., Bouton, J. H., & Butler, T. J. (2009). Economic feasibility of stocker cattle grazing tall fescue infected with a novel endophyte in the Southern Great Plains(abstract). In Joint Annual Meeting ADSA,CSAS,ASAS 2009 (pp. 573 #758). Montreal,Quebec, Canada: ASAS.

Biermacher, J. T. & Cook, B. J. (2009). Managing cull cows at the Noble Foundation. Ag News and Views, 27 (8), 3.

Biermacher, J. T., Upson, S., Miller, D. J., & Pittman, D. (2009). Economic feasibility of small scale vegetable production and retailing in rurual communities(abstract). In Southern Agricultural Economics Association Annual Meeting .Mobile, Alabama: Southern Agricultural Economics Association.

Oswald, D. & Biermacher, J. T. (2009). Implications of proposed cap-and-trade legislation. Ag News and Views, 27 (6), 6.

Amadou, Z., Ward, C., Raper, K., Cook, B. J., & Biermacher, J. T. (2009). Management production systems and timing strategies for cull cows(abstract). In Southern Agricultural Economics Association Annual Meeting .Atlanta, Georgia: SAEGA.

Springer, J. D., Biermacher, J. T., Childs, D., Alkire, D. O., & Grooms, B. (2009). Attributes preferred and premiums offered for naturally produced beef cattle(abstract). In Southern Agricultural Economics Association Annual Meeting .Atlanta, Georgia: SAEA.

Springer, J. D., Biermacher, J. T., Alkire, D. O. & Childs, D. (2009). Premiums being offered for natural beef cattle. Ag News and Views, 27 (5), 7.

Biermacher, J. T. & Blanton, J. R. (2009). Healthcare study has implication for livestock farmers. Ag News and Views, 27 (4), 7.

Biermacher, J., Coffey, C., Cook, B. J., Childs, D., Johnson, J. P., & Ford, D. (2009). Economic advantage of no-tilling winter forages for stocker grazing. Journal of the American Society of Farm Managers and Rural Appraisers, 72, 27-36.

Kering, M. K., Biermacher, J. T., Cook, B. J., & Guretzky, J. (2009). Switchgrass for forage and bioenergy: I. Energy of nitrogen rate and harvest system(abstract). In Proceedings of the International Plant Nutrition Colloquium XVI .Davis, California: University of California, Davis.

Cook, B. J., Biermacher, J., & Childs, D. (2009). The value of pregnancy testing spring-calving beef cows. Farm Management, 16, 337-347.

Biermacher, J. T., Brorsen, B. W., Epplin, F. M., Solie, J. B. & Raun, W. R. (2009). The economic potential of precision nitrogen application with wheat based on plant sensing. Agricultural Economics , 40 (4), 397-407 doi:10.1111/j.1574-0862.2009.00387.

Biermacher, J., Epplin, F. M., Brorsen, B. W., Solie, J. B. , & Raun, W. R. (2009). Economic feasibility of site-specific optical sensing for managing nitrogen fertilizer for growing wheat. Precision Agriculture, 10 (3), 213-230 DOI:10.1007/s11119-008-9092-y.

Biermacher, J. T., Blanton, J. R., Reuter, R. R. & Springer, J. D. (2009). Commingling and marketing value-added cattle. Ag News and Views, 27 (3), 1-2.

Reuter, R. R., Childs, D., Biermacher, J., & Ward, C. (2008). Effects of frame size and muscle score on stocker and feeder cattle profitability. Journal of Agricultural and Resource Economics, 33 (3), 498.

Biermacher, J. T., Coffey, C., Cook, B. J., & Ford, D. (2008). Economic potential of conservation farming annual winter forages for the stocker cattle grazing enterprise(abstract). In Southern Agricultural Economics Association Annual Meeting .Dallas, Texas: SAEA.

Guretzky, J., Biermacher, J. T., Funderburg, E., Mosali, J., Ball, J., & Norton, T. R. (2008). Forage yield stability of fertilized bermudagrass in the Great Plains(abstract). In Proceedings of ASA-CSSA-SSSA Annual Meeting (pp. 654-655). Houston, Texas: ASA-CSSA-SSSA.

Guretzky, J., Cook, B. J., Biermacher, J. T., Reuter, R. R., Mosali, J., & Kering, M. K. (2008). Utilization and value of switchgrass in a dual purpose stocker cattle and bioenergy system(abstract). In Association for the Advancement of Industrial Crops 20th Annual Meeting ..

Biermacher, J. T., Cook, B. J. & Guretzky, J. (2008). Establishing switchgrass for grazing and energy. Midwest Cattleman, 14 (5), 9 & 17.

Biermacher, J. T., Cook, B. J. & Guretzky, J. (2008). Establishing switchgrass for grazing and energy. Ag News and Views, 26 (4), 5.

Gee, K. L. & Biermacher, J. T. (2007). Prescribed burning - What is the cost? Ag News and Views, 25 (7), 7.

Biermacher, J. T. (2007). Cross-divisional projects benefit producers and researchers. Ag News and Views, 25 (5), 4.

Biermacher, J., Upson, S., Miller, D. J., & Pittman, D. (2007). Economic challenges of small-scale vegetable production and retailing in rural communities: An example from rural Oklahoma. Journal of Food Distribution Research, 38 (3).

Biermacher, J. T. & Coffey, C. (2007). Does conservation farming pay for winter forage production? Ag News and Views, 25 (10), 6.

Biermacher, J., Epplin, F. M., Brorsen, B. W., Solie, J. B. , & Raun, W. R. (2006). Maximum benefit of a precise nitrogen application system for wheat. Precision Agriculture, 7 (3), 193-204.

Biermacher, J. T. (2006). Agricultural economic activity in Noble's service area driven by forage-based beef production. Ag News and Views, 24 (6), 2.

Biermacher, J. T. (2006). What's the value of pregnancy testing beef cows? Ag News and Views, 24 (11), 6.

Biermacher, J. T. (2006). New research economist will enhance ag division's R&D projects. Ag News and Views, 24 (1), 2-3.