Works
Chapters
"Forage and Biomass Planting. Chapter 2" In Conservation Outcomes from Pasture and Hayland Practices: Assessment, Recommendations and Knowledge Gaps. Edited by C.J. Nelson. 2012.
"Forage crops and rangeland" In Plant Science: Growth, Development, and Utilization of Cultivated Plants. Edited by M.J. McMahon, A.M Kofranek, and V.E. Rubatzky. 2011.
"Measuring endophyte in tall fescue - plants, fields and farms." In Chapter 15 in “Tall Fescue for the 21st Century”. Edited by H. Frieburg, D.B. Hannaway, C.P. West. 2009.
"Plant nutrient and water interactions" In Forages: Volume II. The Science of Grassland Agriculture. Edited by R.F Barnes, C.J. Nelson, M. Collins and K.J. Moore. 2007.
"Forage crops and rangeland" In Hartmann's Plant Science: Growth, Development, and Utilization of Cultivated Plants. Edited by M.J. McMahon, A.M Kofranek, and V.E. Rubatzky. 2007.
"Forage fertilization and nutrient management" In Forages: Volume I. An Introduction to Grassland Agriculture. Edited by R.F Barnes, C.J. Nelson, M. Collins and K.J. Moore. 2003.
"Establishing and managing improved plants in hill country" In Using and managing improved plants in hill country. Edited by R.E. Burgess and J.L. Brock. 1985.
Conferences
Nave, RLG; R. M. Sulc, D. J. Barker, "Forage nutritive value changes in a stratified canopy of a mixed cool-season grass sward affected by season." XXII International Grassland Congress 2013.
Barker, D.J. Sparks, P.M., "Running Buffalo clover - Lost, Forgotten, or Overlooked?" Am. Forage and Grassl. Council 2013.
D.J. Barker, R.M. Sulc, R. La Guardia Nave, and F.P. Ferraro, "Use of pasture mass as a predictor of herbage accumulation rate, and some implications for pasture management" Proceedings of the American Forage and Grassland Council [CD-ROM Computer File #2]. AFGC, Elmhurst, IL. 2011.
M.B. Dodd, J.R. Crush, A.D. Mackay, D. Barker, "The ‘root’ to more soil carbon under pastures" New Zealand Grassland Association 2011.
D.J. Barker, "The long and short of Grazing: pre-graze and post-graze targets." 9th Heart of America Grazing Conference 2010.
Ferraro, F.P., R.M. Sulc, D.J. Barker, R. La Guardia Nave, F. Lopes, and K.A. Albrecht., "Seasonal effects on rising plate meter calibration for forage" Proceeding of the American Forage and Grassland Council [CD-ROM Computer File #35]. AFGC, Elmhurst, IL. 2009.
D.J. Barker, F.P. Ferraro, W.S. Klooster, R. La-Guardia-Nave, S. Short, and S.L. Wedryck, "Spatial patterns in grassland at local and landscape scales" Proceedings of the American Forage and Grassland Council. [CD-ROM Computer File #78]. AFGC, Elmhurst, IL. 2009.
Diedrick, K.A., Sulc, R.M., Barker, D.J., and McCormick, J.S., "Field performance of alfalfa cultivars selected for resistance to lodging and fast recovery after harvest." Proceedings of the American Forage and Grassland Council 2007.
Brown, C.L.; D.J. Barker, B.K. Slater, "Spatial variation of endophyte distribution in beef and dairy cattle pasture" Proceedings of the American Forage and Grassland Council 2007.
Fae, G.S., R.M. Sulc, D.J. Barker, R.K. Dick, and M.L. Eastridge, "Changes in soil carbon and soil physical properties in an integrated crop-livestock system" Proceedings of the International Symposium on Integrated Crop-Livestock Systems 2007.
Journal Articles
Alexander J. Lindsey, Peter R. Thomison, David J. Barker, and James D. Metzger, "Evaluating water exclusion using plastic ground cover in maize at two population densities." Agronomy Journal 109 (2017) 1-9-1-9
Alexander J. Lindsey, Peter R. Thomison, David J. Barker and Robert W. Mullen, "Drought-Tolerant Corn Hybrid Response to Nitrogen Application Rate in Ohio." Crop, Forage & Turfgrass Management 1 (2015) 1-8-1-8
Nave, R.L.G., R.M. Sulc, D.J. Barker and N. St-Pierre, "Changes in Forage Nutritive Value among Vertical Strata of a Cool-Season Grass Canopy." Crop Sci 54 (2014) 2837-2845-2837-2845
Nave, R.L.G., R.M. Sulc, D.J. Barker and N. St-Pierre, "Changes in Forage Nutritive Value among Vertical Strata of a Cool-Season Grass Canopy." Crop Science 54 (2014) 2837-2845-2837-2845
Nave, R.L.G., R.M. Sulc, and D.J. Barker, "Relationships of forage nutritive value to cool-season grass canopy characteristics" Crop Science 53 1 (2013) 341-348-341-348
L.B. Owens, D.J. Barker, S.C. Loerch, M.J. Shipitalo, J.V. Bonta, and R.M. Sulc, "Nitrate inputs and losses by surface runoff and subsurface leaching for pastures managed by continuous or rotational stocking" Journal of Environmental Quality 41 (2012) 106-113-106-113
F.P. Ferraro, R.M. Sulc, R. L.G. Nave, and D.J. Barker, "Seasonal variation in the rising plate meter calibration forforage mass" Agronomy Journal 104 1 (2012) 1-6-1-6
Barker,David,J; Ferraro,Fernanda,P; Nave,Renata,La Guardia; Sulc,R,Mark; Lopes,Fernanda; Albrecht,Kenneth,A, "Analysis of Herbage Mass and Herbage Accumulation Rate Using Gompertz Equations" Agronomy Journal 102 3 (2010) 849-857-849-857
Liu,J; Barker,D,J; Sulc,R,M; Jang,J,C; Wang,G,L, "Quantifying the proportion of perennial ryegrass cultivars in intra-species mixtures using simple sequence repeat (SSR) and inter-SSR (ISSR) markers and discriminant analysis" NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH 53 3 (2010) 215-226-215-226
Liu, J; D.J. Barker, R.M. Sulc, J.C. Jang, and G.L. Wang, "Quantifying the proportion of perennial ryegrass cultivars in intra-species mixtures using simple sequence repeat (SSR) and inter-SSR (ISSR) markers, and discriminant analysis" New Zealand journal of agricultural research 53 (2010) 215-226-215-226
Presentations
"Impressions from Saudi Arabia." In HCS Departmental Seminar Series. 2016.
"Managing your forage mass." In Ohio Forage and Grassland Council. 2014.
"Management Intensive Grazing." In Monthly Meeting OSU Horsemen’s Club. 2010.
"Pasture cover: Measurement of pasture mass and its use as a metric for forage/grazing systems." In Monthly Webinar American Forage and Grassland Council. 2010.
"The long and short of grazing: pre-graze and post-graze targets." In Annual Conference of Michigan Forage and Grassland Council. 2010.
"What do the rising plate meter and your forage inventory have in common?." In Annual Meeting of the Ohio Forage and Grassland Council. 2010.
"Pasture Management." In Quarterly meeting of the Ohio Alpaca Breeders Assoc. 2010.
"Mud, Dirt or Soil? Soil Science 101 - An Introduction to Soil and Its Effects on Native Plants." In Monthly Meeting of the "Wild Ones". 2010.
"Rotational grazing management – when to hold & when to fold." In Annual Meeting of the Ohio Forage and Grassland Council. 2009.
"Nitrogen: Clover vs Fertilizer, responses and economics." In North Central Ohio Dairy Grazing Conference. 2009.
Technical Reports
J.S. McCormick, R.M. Sulc, D. J. Barker, "2016 Ohio Forage Performance Trials" 2016.
McCormick, J.S., Sulc, R.M., and Barker, D.J., "Ohio Forage Performance Trials 2014" 2014.
McCormick, J.S., Sulc, R.M., and Barker, D.J., "Ohio Forage Performance Trials 2013" 2013.
McCormick, J.S., Sulc, R.M., and Barker, D.J., "Ohio Forage Performance Trials 2012" 2012.
Barker, D.J., Sulc, R.M. and McCormick, J.S., "Field Guide for Lambsear Establishment" 2012.
Barker, D.J., Sulc, R.M., and McCormick, J.S., "Field Guide for Lambsear Management" 2012.
Sulc, R.M., McCormick, J.S., and Barker, D.J., "Ohio Forage Performance Trials 2011" 2011.
Sulc, R.M., McCormick, J.S., and Barker, D.J., "Ohio Forage Performance Trials 2010" 2010.
Sulc, R.M., McCormick, J.S., Barker, D.J. and K.A. Diedrick., "Ohio Forage Performance Trials 2009" 2009.
Sulc, R.M., McCormick, J.S., Barker, D.J. and Diedrick, K.A., "Ohio Forage Performance Trials 2008" 2008.
