Brief Summary of Minutes of Annual Meeting

Pennsylvania: Modeling whole-farm carbon footprint and greenhouse gas (GHG) emissions in pasture livestock systems. Considering biodiversity impacts on ecosystems function with a discussion of the potential of using small-scale study for modeling large-scale mixtures. The presence of alfalfa is the strongest single variable for ecosystem function simulation. In general, functional class analysis does not help in explaining forage yield. Maryland: New biology on old pests- a first report on symbionts in potato leafhopper using molecular biology technique by doctoral student, Bridget Wille-DeLay. Leafhoppers harbor salivary bacteria that provide essential amino acids to the insect host. The use of a degree-day model corroborated the hypothesis of the importance of local production of adults contributing to pest outbreaks of potato leafhoppers. Ohio: Using a modified Gompertz equation, herbage accumulation rate-herbage mass curves define a range of herbage masses within which pastures can be managed to achieve high herbage accumulation rate. Maintaining pastures within 90% of the maximum herbage accumulation rate may be a practical target for producers. Indiana: The combined use of cluster analysis and binary logistic regression helped to illustrate a varying, interdependent nature for alfalfa critical P and K tissue concentrations and suggest the need to account for both nutrients simultaneously. They superimposed switchgrass on an old alfalfa plot area. There was no effect of previous alfalfa treatment on switchgrass biomass yield in the first two years. Virginia: An update on the NCCC common experiment on grass-legume mixtures temporarily entitled as sustainable forage production in a changing climate. Six sites already were planted in 2009 and five more are planned for 2010 across the north-central USA. Entails alfalfa-tall fescue mixtures at five planting ratios and five nitrogen fertilizer rates, 30-500 kg/ha. Proposed hypothetical scenarios of N contribution to grass growth and its variation across environments. North Dakota: A mechanistic model was developed using minimum field measure data to successfully simulate seasonal dynamics of plant water use patterns on mixed-grass prairie. Modeled total amount of water use, soil profile depletion patterns, and root distribution. Wyoming: A multi-year project for improving seedling emergence and persistence of important forage legumes in the central-west (alfalfa, cicer milkvetch, sainfoin) suggested that acid and mechanical scarifications greatly reduced hard seed contents, thus enhanced germination of some of the legume varieties used in the study. Oat, as a cover or companion crop, may have potential to suppress weed infestation and enhance establishment of different forage legumes. Testing various small grains for forage from the Noble Foundation breeding program. Minnesota: A study of alfalfa/grass mixture trials at two MN locations suggested that forage with significant grass content could consistently be of dairy quality. Overall, variations in yield, grass percentage, and quality initially appear to be greater across locations (environments) than across treatments within locations. This suggests a challenge in predicting initial alfalfa/grass performance based on species selection and seeding rates alone. Nebraska: A research proposal was outlined using field measurements and modeling tools to study ecosystem carbon and nitrogen flows, as well as ethanol co-product utilization in crop/pasture system with optional fertilization applications. Assessing whether feeding distiller's dried grains and solubles (DDGS) to grazing cattle can replace nitrogen fertilization. Wisconsin: The roles of kura clover living mulch in eco-friendly and sustainable corn and cereal crops systems were discussed. Using kura clover reduced soil erosion, nutrient leaching, N fertilizers application, but also reduced yield loss of the cereal crops. Announced release of 'Forage Plus' oat, a cultivar potentially useful for double cropping after pea, sweet corn, wheat, and snap bean. Arkansas: Successfully calibrated and verified the ALMANAC growth model in predicting biomass growth curves of switchgrass; discussed N, P, K uptake and removal by switchgrass; discussed summer dormancy in relation to the potential of tall fescue moving to Southern plains.

Abaye O., K. Hurder, C. Teutsch, L.Tucker, and B. Tracy. The Influence of Nitrogen Rate, and Source On Biomass Yield and Nitrate Content of Teff Grown for Livestock Feed in the Mid-Atlantic Region. 2009. ASA  abstracts  Pitt. PA. Abaye., O, K. Hurder, W. Clapham, B. Tracy, and J. Fedders. 2009. Influence of climatic factors (temperature, moisture) and planting dates on growth stages of teff. American Forage and Grassland Council Proceedings. Grand Rapids, MI. Adler, P.R., M.A. Sanderson, P.J. Weimer, and K.P. Vogel. 2009. Plant species composition and biofuel yields of conservation grasslands. Ecol. Appl. 19(8):22022209. Albrecht, K.A., D.J. Undersander, N. Dagenhart, J. Moutray, M. McCaslin. 2009. Contribution of alfalfa hard seed to stand and yield in the field. Forage and Grazinglands doi:10.1094/FG-2009-0114-01-RS. Albrecht, K.A., T.E. Ochsner, and R.J. Berkevich. 2009. Farming for nitrogen: Intercropping corn and kura clover. In Proc. Wisconsin Crop Management Conference 48:163-166. Alexander, L.C., M. Delion, D.J. Hawthorne, W.O. Lamp, and D.H. Funk. 2009. Mitochondrial lineages and DNA barcoding of closely related species in the mayfly genus Ephemerella (Ephemeroptera: Ephemerellidae). Journal of the North American Benthological Society 28: 584-595. Andrzejewska, J. and K. A. Albrecht. 2009. Rosliny Motylkowate Drobnonasienne na Pastwiskach. Wydawnictwa Uczelniane Uniwersytetu Technologiczno-Przyrodniczego, Bydgoszcz, Poland. Arriola S., B. Tracy, and O. Abaye. 2009. Influence of forage characteristics on grazing behavior of weaned claves. American Forage and Grassland Council Proceedings. Grand Rapids, MI. Barker, D.J., F.P. Ferraro, R.L.G. Nave, R.M. Sulc, F. Lopes, and K.A. Albrecht. 2010. Analysis of herbage mass and herbage accumulation rate using gompertz equations. Agron. J. 102:849-857. Berg, W.K., S.M. Cunningham, S.M. Brouder, B.C. Joern, K.D. Johnson, J.J. Volenec. 2009. Influence of phosphorus and potassium on alfalfa yield, taproot C and N pools, and transcript levels of key genes after defoliation. Crop Sci. 49:974-982. Bonin, C.L. and B.F. Tracy 2009. Evaluating plant diversity effects in native, warm-season forage mixtures. Agron. Abstr. #52890 Annual Meeting ASA/CSSA/SSSA Pittsburgh PA Nov. 1-9. Brouder, S.M. and J.J. Volenec. 2008. Impact of climate change on crop nutrient and water use efficiencies. Physiol. Plant. 133:705-724. Brouder, S.M., J.J. Volenec, R. Turco, D.R. Smith, G. Ejeta. 2009. Nutrient-use efficiency in bioenergy cropping systems: Critical research questions. Keynote Address. In. Proc. of the XVI International Plant Nutrition Colloquium: Plant Nutrition for Sustainable Development and Global Health, Aug. 26-30, Sacramento, CA. 9 pp. Carvalho, P.C.F., I. Anghinoni, A. Moraes, C.R. Lang, R. M. Sulc, E.D. Souza, and C. Bayer. 2009. Indicators to evaluate systems integrating crops and beef production. (In Portuguese). In: Workshop on Crop-Livestock-Forestry in the Pampa BiomVol. [CD-ROM computer file]. Edited by Silva, J.L.S. et al. (ed.). Pelotas, RS, Brazil: Embrapa, Ministry of Agriculture, Livestock, and Supply. Cherney, J., Q. Ketterings, M. Davis, D. Cherney, and P. Peterson. 2010. Split N fertilizer vs. dairy manure on harvested perennial grasses. 2 pages. In MFAs Forage Focus quarterly newsletter. March 2010. Contreras-Govea, F.E., R.E. Muck, and K.A. Albrecht. 2009. Yield, nutritive value and silage fermentation of kura clover-reed canarygrass and Lucerne herbages in northern USA. Grass and Forage Sci. 64:374-383. Contreras-Govea, F.E., R.E. Muck, K.L. Armstrong, and K.A. Albrecht. 2009. Fermentability of corn-lablab bean mixtures from different planting densities. Anim. Feed Sci. Technol. 149:298-306. Contreras-Govea, F.E., R.E. Muck, K.L. Armstrong, and K.A. Albrecht. 2009. Nutritive value of corn silage in mixture with climbing beans. Anim. Feed Sci. Technol. 150:1-8. Coulter, J.A., M.P. Russelle, C.C. Sheaffer, and D.E. Kaiser. 2010. On-farm validation of alfalfa N credits to corn. p.3. In P. Peterson et al. (ed.) UMN Forage quarterly. Vol. 4 Issue 1. Available at www.extension.umn.edu/forages/pdfs/february_2010_fq_ umeft.pdf (posted 1 Feb. 2010). Univ. of Minnesota, St. Paul. Culler, L., and W.O. Lamp. 2009. Selective predation by larval Agabus (Coleoptera: Dytiscidae) on mosquitoes: support for conservation-based mosquito suppression in constructed wetlands. Freshwater Biology 54: 2003-2014. Deak, A., M.H. Hall, and M.A. Sanderson. 2009. Grazing schedule effect on forage production and nutritive value of diverse forage mixtures. Agron. J. 101:408-414. Deak, A., M.H. Hall, M.A. Sanderson, M. Corson, and C.A. Rotz. 2010. Whole-farm evaluation of forage mixtures and grazing strategies. Agronomy Journal (In press). Del Grosso, S.J., S.M. Ogle, W.J. Parton and P.R. Adler. 2009. Impacts of land conversion for biofuel cropping on soil organic matter and greenhouse gas emissions, p. 58-67. In: M. Khanna (ed.) Transition to a Bioeconomy: Environmental and Rural Development Impacts, Farm Foundation, Oak Brook, IL. Dong, X., B.D. Patton and P.E. Nyren. 2009. Managing Kentucky Bluegrass Invasion in Native Prairies. Forage Focus. The August 2009 Issue, page 21. Midwest Forage Association, St. Paul, MN, USA. August, 2009. Dong, X., B.D. Patton, A. C. Nyren and P.E. Nyren, 2009. Quantifying plant water use on rangelands through soil water modeling. NDSU Central Grasslands Research Extension Center 2009 Annual Report. P12. NDSU Central Grasslands Research Extension Center, Streeter, ND, USA. Dong, X., B.D. Patton, A. Nyren, P.E. Nyren and L.D. Prunty. 2010. Quantifying root water extraction by rangeland plants through soil water modeling. Plant and Soil. (In press). Fae, G.S., R.M. Sulc, D.J. Barker, R.P. Dick, M.L. Eastridge, and N. Lorenz. 2009. Integrating winter annual forages into a no-till corn silage system. Agron J. 101:1286-1296. Fernández F.G., S.M. Brouder, J.J. Volenec, C.A. Beyrouty, and R. Hoyum. 2009. Root and shoot growth, seed composition, and yield of no-till soybean under variable potassium. Plant Soil (doi 10.1007/s11104-009-9900-9) 322:125138. Ferraro, F.P., R.M. Sulc, D.J. Barker, R.L.G. Nave, F. Lopes, and K.A. Albrecht. 2009. Seasonal effects on rising plate meter calibration for forage yield [CD-ROM]. In: American Forage & Grassl. Conf. Proc., Grand Rapids, MI. 21-23 June 2009. American Forage & Grassl. Council, Elmhurst, IL. Flores J.P.C. and B.F. Tracy. 2009. Impact of concentrated hay feeding areas on pasture ecosystem functioning. Agron. Abstr. #54602 Annual Meeting ASA/CSSA/SSSA Pittsburgh PA Nov. 1-9. Goslee, S.C., M.A. Sanderson, and J. Gonet. 2009. No persistent changes in pasture vegetation or seed bank composition after fallowing. Agronomy Journal 101:1168-1174. Greenquist M.A., Klopfenstein T.J., Schacht W.H., Erickson G.E., Vander Pol K.J., Luebbe M.K., Brink K.R., Schwarz A.K., Baleseng L.B. (2009) Effects of nitrogen fertilization and dried distillers grains supplementation: forage use and performance of yearling steers. J. Anim. Sci. 87:3639-3646. Gregorini, P., K.J. Soder, and G. Waghorn. 2010. Effects of timing of corn silage supplementation on ruminal digestion, fermentation pattern and nutrient flow during continuous culture fermentation of a short and intensive orchardgrass herbage meal. J. of Dairy Sci. (In press). Hall, M.H., J.M. Dillon, D.J. Undersander, T.M. Wood, P.W. Holman, D.H. Min, R.H. Leep, G.D. Lacefield, H.T. Kunelius, P.R. Peterson, and N.J. Ehlke. 2009. Ecogeographic factors affecting inflorescence emergence of cool-season forage grasses. Crop Sci. 49:1109-1115 Hall, M.H., N.S. Hebrock, P.E. Pierson, J.L. Caddel, V.N. Owens, R.M. Sulc, D.J. Undersander, and R.E. Whitesides. 2010. The effects of glyphosate-tolerant technology on reduced alfalfa seeding rates.Agron. J. (In press). Hammond, R.B. A. Michel, J.B. Eisley, and M. Sulc. 2009. Potato leafhopper on alfalfa. Agric. and Natural Resources. Columbus, OH: Ohio State Univ. Ext. Factsheet. (Report No. FC-ENT-0033-09) Available at http://ohioline.osu.edu/ent-fact/pdf/0033.pdf. Hannaway, D.B., C. Daly, M. Halbleib, D. James, C. West, J.J. Volenec, D. Chapman, X. Li, W. Cao, J. Shen, and S. Johnson. 2009. Tall fescue adaptation and suitability zones. In: Tall Fescue On-line Monograph, Amer. Soc. Agron., Madison, WI. URL:. Hedtcke, J.L., J.L. Posner, M. Rosemeyer, and K.A. Albrecht. 2009. Browsing for conservation: Springtime forage value of midstory shrubs of degraded oak savannas in southern Wisconsin. Renewable Agricultural and Food Systems. 24:293-299. Holen, D., and P. Peterson. 2009. Late-planted forage options. p.3. In UMN Forage Quarterly. Vol. 3, Issue 2. May 2009. Holen, D., P. Glogoza, C. Sheaffer, D. Swanson, J. Larson, and P. Peterson. 2010. 2009 irrigated corn silage hybrid performance evaluation - Otter Tail County. In On-farm cropping trials: Northwest and west central Minnesota. Univ. of Minnesota Extension. January 2010. Holen, D., P. Peterson, P. Glogoza, C. Sheaffer, and J. Larson. 2010. 2006-2009 alfalfa variety evaluation trials - Otter Tail County. In On-farm cropping trials: Northwest and west central Minnesota. Univ. of Minnesota Extension. January 2010. Hollingsworth, C., D. Samac., P. Peterson, D. Holen, and H. Person. 2009. Brown root rot of alfalfa. 4 pages. www.extension.umn.edu/forages/pdfs/brr_final.pdf. August 2009. Jensen. P.D., G.P. Dively, C.M. Swan, and W.O. Lamp. 2010. Exposure and non-target effects of transgenic Bt corn debris in streams. Environmental Entomology (in press). Jung, H.G., M.L. Raeth-Knight, J.G. Linn, and P.R. Peterson. 2010. Comparison of alfalfa and orchardgrass hay as replacements for grain in lactating dairy cow diets. 1-page abstract. In Proc. 2010 MFA Symposium. WI Dells, WI. 25-27 Jan. 2010. Jung, H.G., M.L. Raeth-Knight, J.G. Linn, and P.R. Peterson. 2010. Comparison of alfalfa and orchardgrass hay as replacements for grain in lactating dairy cow diets. 1-page abstract. In Proc. 2010 MN Forage Days. 5 MN locations. 8-12 Feb. 2010. Kelzer, J.M., R.S. Walker, S. Bird, R.D. Mathison, and P.R. Peterson. 2009. Evaluation of grazing windrowed vs. stockpiled annual ryegrass to extend the fall grazing season in northern MN. 7 pages. In Proc. 2009 Conf. American Forage and Grassland Council. Grand Rapids, MI. 21-23 June 2009. Kelzer, J.M., S. Bird., R.D. Mathison, P.R. Peterson, and R.S. Walker. 2009. Effect of fall grazing system on annual ryegrass quality and beef cattle performance. J. Anim. Sci. 87 (E-Suppl. 2)/J. Dairy Sci. 92 (E-Suppl. 1): Abstract #756. Lamp, W.O., and B.W. DeLay. 2009. Saliva of potato leafhopper (Empoasca fabae) affects the physiological response of legumes. National Meeting of the Entomological Society of America, Indianapolis, IN. Lissbrant, S., S. Stratton, S.M. Cunningham, S.M. Brouder, and J.J. Volenec. 2009. Impact of long-term phosphorus and potassium fertilization on alfalfa forage quality-yield relationships. Crop Sci. 49:1116-1124. Lissbrant, S., S.M. Brouder, S.M. Cunningham, and J.J. Volenec. 2010. Identification of fertility regimes that enhance long-term productivity of alfalfa (Medicago sativa L.) using cluster analysis. Agron. J. 102:580-591. Mathison, R., R. Walker, and P. Peterson. 2010. Methods to establish annual forages on winter feeding areas. In MFA Clippings. 13 January 2010. Maughan, M.W., J.P.C. Flores, I. Anghinoni G.A. Bollero, F.G. Fernández and B.F. Tracy. 2009. Soil Quality and Corn Yield under CropLivestock Integration in Illinois. Agron. J. 101:15031510. McCordick, S. Ann, David E. Hillger, Richard H. Leep, and James J. Kells. 2008. Forage quality of glyphosate-resistant alfalfa as influenced by establishment systems. Weed Technology 22:635640. McCordick, S. Ann, David E. Hillger, Richard H. Leep, and James J. Kells. 2008. Establishment systems for glyphosate-resistant alfalfa. Weed Technology 22:2229. McGrath, S.R., R.O. Maguire, B.F. Tracy, and J.H. Fike. 2010. Improving soil nutrition with poultry litter application in low input forage systems. Agron. J. 102:48-54. Orr, M-J.; S.M. Brouder, J.J. Volenec, M. Bischoff, and R.F. Turco. 2009. Unintended consequences of biofuel feedstock production on carbon and nitrogen cycle dynamics mediated by soil biology. ASA-CSSA-SSSA International Meetings, Nov. 1 to 5, http://a-c-s.confex.com/crops/2009am/webprogram/Paper54550.html Owens, V.N., K.A. Albrecht, and R.E. Muck. 2009. Maturity effects on protein degradation in unwilted and wilted clover and alfalfa silages. p. 447-448. In Proc. 15th International Silage Conference, Madison, WI. 27-29 July 2009. Parsons, D., J.H. Cherney, and P.R. Peterson. 2009. Preharvest neutral detergent fiber concentration of alfalfa as influenced by stubble height. Agron. J. 101:769-774. Pedersen, P., E.J. Bures, and K.A. Albrecht. 2009. Soybean production in a kura clover living mulch system. Agron. J. 101:653-656. Pembleton K.G., J.J. Volenec, R.P. Rawnsley, and D.J. Donaghy. 2010. Partitioning of taproot assimilates and crown bud development are affected by water deficit in regrowing alfalfa (Medicago sativa L.). Crop Sci. (in press) Pembleton K.G., R.P. Rawnsley, D.J. Donaghy, and J.J. Volenec. 2009. Water deficit alters canopy structure but not photosynthesis during the regrowth of alfalfa (Medicago sativa L.). Crop Sci. 49:722-731. Pembleton, K.G., D.J. Donaghy, J.J. Volenec, R.S. Smith, and R.P. Rawnsley. 2010. Yield, yield components and shoot morphology of four contrasting lucerne (Medicago sativa) cultivars grown in 3 cool temperate environments. Crop Pasture Sci. (accepted) Pembleton, K.G., S.M. Cunningham, and J.J Volenec. 2010. Effect of summer irrigation on seasonal changes in taproot reserves and the expression of winter dormancy/activity in four contrasting lucerne cultivars. Aust. J. Agric. Res. (accepted) Pembleton, K.G., S.M. Cunningham, and J.J. Volenec. 2009. The effect of water deficit on the seasonal pattern of taproot assimilates for 4 contrasting alfalfa cultivars in Tasmania, Australia. ASA-CSSA-SSSA International Meetings, Nov. 1 to 5,. http://a-c-s.confex.com/crops/2009am/webprogram/Paper53425.html. Peterson, P. 2009. Dairy-quality grass forage research update. In Dairy Star. www.extension.umn.edu/dairy/dairystar/08-08-09-Peterson.html. 8 August 2009. Peterson, P. 2009. Late-season perennial forage harvesting/grazing. p.2. In UMN Forage Quarterly. Vol. 3, Issue 3. August 2009. Peterson, P. 2009. Renovation/summer seeding management. p.4. In UMN Forage Quarterly. Vol. 3, Issue 3. August 2009. Peterson, P. 2010. 2010 Minnesota Forage Days Feb. 8-12. In Dairy Star. 30 Jan. 2010. Peterson, P. (ed.). 2010. Proc. 2010 Minnesota Forage Days. UMN Extension and Midwest Forage Association. 8-12 Feb. 2010. Peterson, P., and S. Mahli. 2009. Grass forage: Fertility matters; N and S together boost timothy yield in central Canadian research. In MFA Clippings. 18 December 2009. Peterson, P., D. Holen, D. Martens, D. Nicolai, J. Paulson, E. Wieland, and N. Winter. 2010. On-farm evaluation of alfalfa/grass mixtures in MN: Establishment and initial performance. 7 pages. In Proc. 2010 MFA Symposium. WI Dells, WI. 25-27 Jan. 2010. Peterson, P., D. Holen, D. Martens, D. Nicolai, J. Paulson, E. Wieland, N. Winter, and R. Mathison. 2010. On-farm evaluation of alfalfa/grass mixtures in Minnesota: Establishment and initial performance. 7 pages. In Proc. 2010 MN Forage Days. 5 MN locations. 8-12 Feb. 2010. Peterson, P., D. Holen, D. Martens, D. Nicolai, J. Paulson, E. Wieland, N. Winter. 2009. On-farm evaluation of alfalfa/grass mixtures: Establishment and initial performance. 5 pages. www.midwestforage.org/pdfRschProj/08%20On-Farm%20Eval%20Grass%20Mixtures.pdf. Also p.16, 20. In MFA Forage Focus. August 2009. Peterson, P., K. Martinson, N. Broadwater, and R. Walker (Co-Editors). 2009-2010. UMN Forage Quarterly. 4-page e-newsletter, 3 issues. UMN Extension Forage Team. www.extension.umn.edu/forages/newsletter.html. August and November 2009; February 2010. Peterson, P.R., and R.D. Mathison. 2010. Beef grazing systems 101. p.17-18. In Proc. 2010 MN Beef Cow/Calf Days. 10 MN locations. 2-5, 8-12 Feb. 2010. Peterson, P.R., D. Holen, D. Martens, D. Nicolai, J. Paulson, B. Wieland, N. Winter, and R.D. Mathison. 2010. On-farm evaluation of alfalfa/grass mixtures in Minnesota: Establishment and initial performance. p.67-73. In Proc. 2010 MN Beef Cow/Calf Days. 10 MN locations. 2-5, 8-12 Feb. 2010. Peterson, Paul (Technical Editor; and Contributing Editor, Forage research updates). 2009-2010. Forage Focus, 20-28-page MFA quarterly newsletter, 3 issues. August and December 2009; March 2010 issues. Raeth-Knight, M., J. Linn, H. Jung, and P. Peterson. 2010. Does alfalfa-hay NDFD matter in a dairy TMR? 1 page. In MFAs Forage Focus quarterly newsletter. March 2010. Ravindranath, S.V., N. Uppugundla, J. Lay, E. Clausen, M. Wilkins, R. Ingraham, C.P. West, Y. Wu, D.J. Carrier. 2009. Policosanol, tocopherol and moisture content as a function of timing of harvest of switchgrass (Panicum virgatum L.). J. Agric. Food Chem. 57:3500-3505. Robinson, A.P., S.P. Conley, J.J. Volenec, and J.B. Santini. 2009. Analysis of high-yielding, early-planted soybean in Indiana. Agron. J. 101:131-139. Rotz, C.A., K.J. Soder, R. Howard Skinner, C.J. Dell, P.J. Kleinman, J.P. Schmidt, and R.B. Bryant. 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