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6. Biomass production of herbaceous energy crops in the United States: field trial results and yield potential maps from the multiyear regional feedstock partnership

Author

Lee, Do Kyoung, Aberle, Ezra, Anderson, Eric K., Anderson, William, Baldwin, Brian S., Baltensperger, David, Barrett, Michael, Blumenthal, Jurg, Bonos, Stacy, Bouton, Joe, Bransby, David I., Brummer, Charlie, Burks, Pane S., Chen, Chengci, Daly, Christopher, Egenolf, Josh, Farris, Rodney L., Fike, John H., Gaussoin, Roch, Gill, John R., Gravois, Kenneth, Halbleib, Michael D., Hale, Anna, Hanna, Wayne, Harmoney, Keith, Heaton, Emily A., Heiniger, Ron W., Hoffman, Lindsey, Hong, Chang O., Kakani, Gopal, Kallenbach, Robert, Macoon, Bisoondat, Medley, James C., Missaoui, Ali, Mitchell, Robert, Moore, Ken J., Morrison, Jesse I., Odvody, Gary N., Richwine, Jonathan D., Ogoshi, Richard, Parrish, Jimmy Ray, Quinn, Lauren, Richard, Ed, Rooney, William L., Rushing, J. Brett, Schnell, Ronnie, Sousek, Matt, Staggenborg, Scott A., Tew, Thomas, Uehara, Goro, Viands, Donald R., Voigt, Thomas, Williams, David G., Williams, Linda, Wilson, Lloyd Ted, Wycislo, Andrew, Yang, Yubin, Owens, Vance, Lee, Do Kyoung, Aberle, Ezra, Anderson, Eric K., Anderson, William, Baldwin, Brian S., Baltensperger, David, Barrett, Michael, Blumenthal, Jurg, Bonos, Stacy, Bouton, Joe, Bransby, David I., Brummer, Charlie, Burks, Pane S., Chen, Chengci, Daly, Christopher, Egenolf, Josh, Farris, Rodney L., Fike, John H., Gaussoin, Roch, Gill, John R., Gravois, Kenneth, Halbleib, Michael D., Hale, Anna, Hanna, Wayne, Harmoney, Keith, Heaton, Emily A., Heiniger, Ron W., Hoffman, Lindsey, Hong, Chang O., Kakani, Gopal, Kallenbach, Robert, Macoon, Bisoondat, Medley, James C., Missaoui, Ali, Mitchell, Robert, Moore, Ken J., Morrison, Jesse I., Odvody, Gary N., Richwine, Jonathan D., Ogoshi, Richard, Parrish, Jimmy Ray, Quinn, Lauren, Richard, Ed, Rooney, William L., Rushing, J. Brett, Schnell, Ronnie, Sousek, Matt, Staggenborg, Scott A., Tew, Thomas, Uehara, Goro, Viands, Donald R., Voigt, Thomas, Williams, David G., Williams, Linda, Wilson, Lloyd Ted, Wycislo, Andrew, Yang, Yubin, and Owens, Vance

Abstract

Current knowledge of yield potential and best agronomic management practices for perennial bioenergy grasses is primarily derived from small-scale and short-term studies, yet these studies inform policy at the national scale. In an effort to learn more about how bioenergy grasses perform across multiple locations and years, the U.S. Department of Energy (US DOE)/Sun Grant Initiative Regional Feedstock Partnership was initiated in 2008. The objectives of the Feedstock Partnership were to (1) provide a wide range of information for feedstock selection (species choice) and management practice options for a variety of regions and (2) develop national maps of potential feedstock yield for each of the herbaceous species evaluated. The Feedstock Partnership expands our previous understanding of the bioenergy potential of switchgrass, Miscanthus, sorghum, energycane, and prairie mixtures on Conservation Reserve Program land by conducting long-term, replicated trials of each species at diverse environments in the U.S. Trials were initiated between 2008 and 2010 and completed between 2012 and 2015 depending on species. Field-scale plots were utilized for switchgrass and Conservation Reserve Program trials to use traditional agricultural machinery. This is important as we know that the smaller scale studies often overestimated yield potential of some of these species. Insufficient vegetative propagules of energycane and Miscanthus prohibited farm-scale trials of these species. The Feedstock Partnership studies also confirmed that environmental differences across years and across sites had a large impact on biomass production. Nitrogen application had variable effects across feedstocks, but some nitrogen fertilizer generally had a positive effect. National yield potential maps were developed using PRISM-ELM for each species in the Feedstock Partnership. This manuscript, with the accompanying supplemental data, will be useful in making decisions about feedstock selection as well

Published
2018
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7. Biomass production of herbaceous energy crops in the United States: field trial results and yield potential maps from the multiyear regional feedstock partnership

Author

School of Plant and Environmental Sciences, Lee, Do Kyoung, Aberle, Ezra, Anderson, Eric K., Anderson, William, Baldwin, Brian S., Baltensperger, David, Barrett, Michael, Blumenthal, Jurg, Bonos, Stacy, Bouton, Joe, Bransby, David I., Brummer, Charlie, Burks, Pane S., Chen, Chengci, Daly, Christopher, Egenolf, Josh, Farris, Rodney L., Fike, John H., Gaussoin, Roch, Gill, John R., Gravois, Kenneth, Halbleib, Michael D., Hale, Anna, Hanna, Wayne, Harmoney, Keith, Heaton, Emily A., Heiniger, Ron W., Hoffman, Lindsey, Hong, Chang O., Kakani, Gopal, Kallenbach, Robert, Macoon, Bisoondat, Medley, James C., Missaoui, Ali, Mitchell, Robert, Moore, Ken J., Morrison, Jesse I., Odvody, Gary N., Richwine, Jonathan D., Ogoshi, Richard, Parrish, Jimmy Ray, Quinn, Lauren, Richard, Ed, Rooney, William L., Rushing, J. Brett, Schnell, Ronnie, Sousek, Matt, Staggenborg, Scott A., Tew, Thomas, Uehara, Goro, Viands, Donald R., Voigt, Thomas, Williams, David G., Williams, Linda, Wilson, Lloyd Ted, Wycislo, Andrew, Yang, Yubin, Owens, Vance, School of Plant and Environmental Sciences, Lee, Do Kyoung, Aberle, Ezra, Anderson, Eric K., Anderson, William, Baldwin, Brian S., Baltensperger, David, Barrett, Michael, Blumenthal, Jurg, Bonos, Stacy, Bouton, Joe, Bransby, David I., Brummer, Charlie, Burks, Pane S., Chen, Chengci, Daly, Christopher, Egenolf, Josh, Farris, Rodney L., Fike, John H., Gaussoin, Roch, Gill, John R., Gravois, Kenneth, Halbleib, Michael D., Hale, Anna, Hanna, Wayne, Harmoney, Keith, Heaton, Emily A., Heiniger, Ron W., Hoffman, Lindsey, Hong, Chang O., Kakani, Gopal, Kallenbach, Robert, Macoon, Bisoondat, Medley, James C., Missaoui, Ali, Mitchell, Robert, Moore, Ken J., Morrison, Jesse I., Odvody, Gary N., Richwine, Jonathan D., Ogoshi, Richard, Parrish, Jimmy Ray, Quinn, Lauren, Richard, Ed, Rooney, William L., Rushing, J. Brett, Schnell, Ronnie, Sousek, Matt, Staggenborg, Scott A., Tew, Thomas, Uehara, Goro, Viands, Donald R., Voigt, Thomas, Williams, David G., Williams, Linda, Wilson, Lloyd Ted, Wycislo, Andrew, Yang, Yubin, and Owens, Vance

Abstract

Current knowledge of yield potential and best agronomic management practices for perennial bioenergy grasses is primarily derived from small-scale and short-term studies, yet these studies inform policy at the national scale. In an effort to learn more about how bioenergy grasses perform across multiple locations and years, the U.S. Department of Energy (US DOE)/Sun Grant Initiative Regional Feedstock Partnership was initiated in 2008. The objectives of the Feedstock Partnership were to (1) provide a wide range of information for feedstock selection (species choice) and management practice options for a variety of regions and (2) develop national maps of potential feedstock yield for each of the herbaceous species evaluated. The Feedstock Partnership expands our previous understanding of the bioenergy potential of switchgrass, Miscanthus, sorghum, energycane, and prairie mixtures on Conservation Reserve Program land by conducting long-term, replicated trials of each species at diverse environments in the U.S. Trials were initiated between 2008 and 2010 and completed between 2012 and 2015 depending on species. Field-scale plots were utilized for switchgrass and Conservation Reserve Program trials to use traditional agricultural machinery. This is important as we know that the smaller scale studies often overestimated yield potential of some of these species. Insufficient vegetative propagules of energycane and Miscanthus prohibited farm-scale trials of these species. The Feedstock Partnership studies also confirmed that environmental differences across years and across sites had a large impact on biomass production. Nitrogen application had variable effects across feedstocks, but some nitrogen fertilizer generally had a positive effect. National yield potential maps were developed using PRISM-ELM for each species in the Feedstock Partnership. This manuscript, with the accompanying supplemental data, will be useful in making decisions about feedstock selection as well

Published
2018

8. Biomass production of herbaceous energy crops in the United States: field trial results and yield potential maps from the multiyear regional feedstock partnership

Author

Lee, Do Kyoung, primary, Aberle, Ezra, additional, Anderson, Eric K., additional, Anderson, William, additional, Baldwin, Brian S., additional, Baltensperger, David, additional, Barrett, Michael, additional, Blumenthal, Jürg, additional, Bonos, Stacy, additional, Bouton, Joe, additional, Bransby, David I., additional, Brummer, Charlie, additional, Burks, Pane S., additional, Chen, Chengci, additional, Daly, Christopher, additional, Egenolf, Josh, additional, Farris, Rodney L., additional, Fike, John H., additional, Gaussoin, Roch, additional, Gill, John R., additional, Gravois, Kenneth, additional, Halbleib, Michael D., additional, Hale, Anna, additional, Hanna, Wayne, additional, Harmoney, Keith, additional, Heaton, Emily A., additional, Heiniger, Ron W., additional, Hoffman, Lindsey, additional, Hong, Chang O., additional, Kakani, Gopal, additional, Kallenbach, Robert, additional, Macoon, Bisoondat, additional, Medley, James C., additional, Missaoui, Ali, additional, Mitchell, Robert, additional, Moore, Ken J., additional, Morrison, Jesse I., additional, Odvody, Gary N., additional, Richwine, Jonathan D., additional, Ogoshi, Richard, additional, Parrish, Jimmy Ray, additional, Quinn, Lauren, additional, Richard, Ed, additional, Rooney, William L., additional, Rushing, J. Brett, additional, Schnell, Ronnie, additional, Sousek, Matt, additional, Staggenborg, Scott A., additional, Tew, Thomas, additional, Uehara, Goro, additional, Viands, Donald R., additional, Voigt, Thomas, additional, Williams, David, additional, Williams, Linda, additional, Wilson, Lloyd Ted, additional, Wycislo, Andrew, additional, Yang, Yubin, additional, and Owens, Vance, additional

Published
2018
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9. Economic Implications of Harvest Time Effects on Switchgrass Moisture Content, Nutrient Concentration and Yield

Author

Lindsay, Karen, Popp, Michael, West, Chuck, Ashworth, Amanada, Rocateli Caldeira, Alexandre, Farris, Rodney, Kakani, Gopal, Fritschi, Felix, Green, Steven, Alison, M.W., Maw, Michael, and Acosta-Gamboa, Lucia

Subjects
nutrient concentration, harvest date, yield curve, Farm Management, switchgrass, moisture content
Abstract

Biorefineries face logistical problems that may affect the price a biorefinery is willing to pay. One of the driving factors in storage and transportation of biomass is the moisture content (MC) at harvest. Delaying switchgrass harvest from profit-maximizing times of October through November, when moisture and nutrient concentrations of the standing crop are still high, to January or February, when moisture in the standing crop has declined and more nutrients have translocated back to the roots of this perennial plant, may result in production cost savings at the expense of lower yield. Using 20 and 30% MC thresholds in the standing crop as a determining factor, harvesting requires a separate cutting pass above this threshold to allow drying in the swath before chopping with a forage harvester. Below that threshold, a forage harvester may be equipped to perform both cutting and chopping functions in a single pass. Using switchgrass trial data from several environments, this study calculates harvest date-driven changes in yield, harvest cost and nutrient replacement between a profit-maximizing harvest date, requiring two harvest equipment operations vs. delayed, single-pass harvest at lower standing crop MC of 30% and 20% to show whether delayed harvest is feasible.

Published
2016
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10. Energy Sugar Beets to Biofuel: Field to Fuel Production System and Cost Estimates

Author

Haankuku, Choolwe, Epplin, Francis M., and Kakani, Gopal V.

Subjects
biorefinery, Production Economics, Resource /Energy Economics and Policy, breakeven price, energy beets, Agribusiness, Crop Production/Industries
Abstract

Energy beets (Beta vulgaris L.) meet the requirements for advanced biofuel feedstocks under the Energy Independence and Security Act of 2007. A mixed-integer programming model was constructed to determine the breakeven price of ethanol from energy beets, and to determine the optimal size and biorefinery location. The model, based on limited field data, evaluates Southern Plains beet production in a 3-year crop rotation, and beet harvest, transportation and processing. The optimal strategy depends critically on several assumptions including a just-in-time harvest and delivery system that remains to be tested in field trials. Based on a conversion rate of 26 gallons per wet ton and capital cost of $128 million for a 40,000,000 gallons per year biorefinery, the estimated breakeven ethanol price is $2.63 per gallon. The estimated beet delivered cost of $1.31 per gallon compares with the net corn feedstock cost ($1.17 to $1.74 per gallon in 2014). If for a mature industry, the cost to process beets was equal to the cost to process corn, the beet breakeven ethanol price would be $1.96 per gallon ($2.97 per gallon gasoline equivalent).

Published
2015
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