BioEnergy Research

, Volume 7, Issue 2, pp 598–608

Site-Specific Trade-offs of Harvesting Cereal Residues as Biofuel Feedstocks in Dryland Annual Cropping Systems of the Pacific Northwest, USA

  • David R. Huggins
  • Chad E. Kruger
  • Kathleen M. Painter
  • David P. Uberuaga

DOI: 10.1007/s12155-014-9438-4

Cite this article as:
Huggins, D.R., Kruger, C.E., Painter, K.M. et al. Bioenerg. Res. (2014) 7: 598. doi:10.1007/s12155-014-9438-4


Cereal residues are considered an important feedstock for future biofuel production. Harvesting residues, however, could lead to serious soil degradation and impaired agroecosystem services. Our objective was to evaluate trade-offs of harvesting wheat and barley residues including impacts on soil erosion and quality, soil organic C (SOC), and nutrient removal. We used agricultural data from 369 geo-referenced points on the 37-ha Washington State University Cook Agronomy Farm combined with model simulations to develop straw harvest scenarios for conventional tillage (CT) and no-tillage (NT) and both 2- and 3-year crop rotations with sequences of wheat, barley, and peas. Site-specific estimates of ethanol production from 2- and 3-year rotation scenarios ranged from 681 to 1,541 L ha−1 yr−1, indicating that both crop rotation and site-specific targeting of residue harvest are important factors. Harvesting straw reduced residue C inputs by 46 % and resulted in levels below that required to maintain SOC under CT. This occurred as a function of both straw harvest and low residue producing crops in rotation. Harvesting straw under CT was predicted to reduce soil quality as Soil Conditioning Indices (SCIs) were negative throughout the field. In contrast, SCIs under NT were positive despite straw harvest. Replacement value of nutrients (N, P, K, S) removed in harvested straw averaged $14.54 Mg−1 dry straw and ranged from $36.04 to $80.30 ha−1, while straw harvesting costs averaged $34.25 Mg−1, and the current (2014) market value of straw is $65 Mg−1. We concluded that substantial trade-offs exist in harvesting straw for biofuel, that trade-offs should be evaluated on a site-specific basis, and that support practices such as crop rotation, reduced tillage, and site-specific nutrient management need to be considered if residue harvest is to be sustainable.


Wheat residueBiofuelsCereal strawEthanolSoil qualitySoil carbon



conventional tillage




soil organic carbon


soil conditioning index


Pacific Northwest


Cook Agronomy Farm


Revised Universal Soil Loss Equation


geographical information systems


digital elevation model


winter wheat


spring wheat


spring barley


spring pea

Copyright information

© Springer Science+Business Media New York (outside the USA) 2014

Authors and Affiliations

  • David R. Huggins
    • 1
  • Chad E. Kruger
    • 2
  • Kathleen M. Painter
    • 3
  • David P. Uberuaga
    • 4
  1. 1.Land Management and Water Conservation Research Unit, USDA-ARSWashington State UniversityPullmanUSA
  2. 2.Center for Sustaining Agriculture and Natural ResourcesWashington State UniversityWenatcheeUSA
  3. 3.Agricultural Economics and Rural SociologyUniversity of IdahoMoscowUSA
  4. 4.Department of Crop and Soil ScienceWashington State UniversityPullmanUSA