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Title: Vertical distribution of structural components in corn stover

In the United States, corn ( Zea mays L.) stover has been targeted for second generation fuel production and other bio-products. Our objective was to characterize sugar and structural composition as a function of vertical distribution of corn stover (leaves and stalk) that was sampled at physiological maturity and about three weeks later from multiple USA locations. A small subset of samples was assessed for thermochemical composition. Concentrations of lignin, glucan, and xylan were about 10% greater at grain harvest than at physiological maturity, but harvestable biomass was about 25% less due to stalk breakage. Gross heating density above the ear averaged 16.3 ± 0.40 MJ kg⁻¹, but with an alkalinity measure of 0.83 g MJ⁻¹, slagging is likely to occur during gasification. Assuming a stover harvest height of 10 cm, the estimated ethanol yield would be >2500 L ha⁻¹, but it would be only 1000 L ha⁻¹ if stover harvest was restricted to the material from above the primary ear. Vertical composition of corn stover is relatively uniform; thus, decision on cutting height may be driven by agronomic, economic and environmental considerations.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [6] ;  [7] ;  [8] ;  [9] ;  [4] ;  [10] ;  [11] ;  [12] ;  [3] ;  [3] ;  [1]
  1. USDA-Agricultural Research Service, Morris, MN (United States)
  2. USDA-Agricultural Research Service, Ames, IA (United States)
  3. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  4. USDA-Agricultural Research Service, Florence, SC (United States)
  5. USDA-Agricultural Research Service, Mandan, ND (United States)
  6. USDA-Agricultural Research Service, Lincoln, NE (United States)
  7. Iowa State University, Ames, IA (United States)
  8. USDA-Agricultural Research Service, St. Paul, MN (United States)
  9. Oklahoma State Univ., Stillwater, OK (United States)
  10. USDA-Agricultural Research Service, Fort Collins, CO (United States)
  11. University of Wisconsin, Madison, WI (United States)
  12. CPESC #651, Labadie, MO (United States)
Publication Date:
Grant/Contract Number:
AC07-05ID14517; FC36-05GO85041
Type:
Accepted Manuscript
Journal Name:
Agriculture
Additional Journal Information:
Journal Volume: 4; Journal Issue: 4; Journal ID: ISSN 2077-0472
Publisher:
MDPI
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; lignocellulosic biomass; theoretical ethanol yield; soil organic carbon; sustainable; bioenergy; second generation feedstock
OSTI Identifier:
1208602

Johnson, Jane M. F., Karlen, Douglas L., Gresham, Garold L., Cantrell, Keri B., Archer, David W., Wienhold, Brian J., Varvel, Gary E., Laird, David A., Baker, John, Ochsner, Tyson E., Novak, Jeff M., Halvorson, Ardell D., Arriaga, Francisco, Lightle, David T., Hoover, Amber, Emerson, Rachel, and Barbour, Nancy W.. Vertical distribution of structural components in corn stover. United States: N. p., Web. doi:10.3390/agriculture4040274.
Johnson, Jane M. F., Karlen, Douglas L., Gresham, Garold L., Cantrell, Keri B., Archer, David W., Wienhold, Brian J., Varvel, Gary E., Laird, David A., Baker, John, Ochsner, Tyson E., Novak, Jeff M., Halvorson, Ardell D., Arriaga, Francisco, Lightle, David T., Hoover, Amber, Emerson, Rachel, & Barbour, Nancy W.. Vertical distribution of structural components in corn stover. United States. doi:10.3390/agriculture4040274.
Johnson, Jane M. F., Karlen, Douglas L., Gresham, Garold L., Cantrell, Keri B., Archer, David W., Wienhold, Brian J., Varvel, Gary E., Laird, David A., Baker, John, Ochsner, Tyson E., Novak, Jeff M., Halvorson, Ardell D., Arriaga, Francisco, Lightle, David T., Hoover, Amber, Emerson, Rachel, and Barbour, Nancy W.. 2014. "Vertical distribution of structural components in corn stover". United States. doi:10.3390/agriculture4040274. https://www.osti.gov/servlets/purl/1208602.
@article{osti_1208602,
title = {Vertical distribution of structural components in corn stover},
author = {Johnson, Jane M. F. and Karlen, Douglas L. and Gresham, Garold L. and Cantrell, Keri B. and Archer, David W. and Wienhold, Brian J. and Varvel, Gary E. and Laird, David A. and Baker, John and Ochsner, Tyson E. and Novak, Jeff M. and Halvorson, Ardell D. and Arriaga, Francisco and Lightle, David T. and Hoover, Amber and Emerson, Rachel and Barbour, Nancy W.},
abstractNote = {In the United States, corn (Zea mays L.) stover has been targeted for second generation fuel production and other bio-products. Our objective was to characterize sugar and structural composition as a function of vertical distribution of corn stover (leaves and stalk) that was sampled at physiological maturity and about three weeks later from multiple USA locations. A small subset of samples was assessed for thermochemical composition. Concentrations of lignin, glucan, and xylan were about 10% greater at grain harvest than at physiological maturity, but harvestable biomass was about 25% less due to stalk breakage. Gross heating density above the ear averaged 16.3 ± 0.40 MJ kg⁻¹, but with an alkalinity measure of 0.83 g MJ⁻¹, slagging is likely to occur during gasification. Assuming a stover harvest height of 10 cm, the estimated ethanol yield would be >2500 L ha⁻¹, but it would be only 1000 L ha⁻¹ if stover harvest was restricted to the material from above the primary ear. Vertical composition of corn stover is relatively uniform; thus, decision on cutting height may be driven by agronomic, economic and environmental considerations.},
doi = {10.3390/agriculture4040274},
journal = {Agriculture},
number = 4,
volume = 4,
place = {United States},
year = {2014},
month = {11}
}