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Economic analysis of site-specific wheat management with respect to grain quality and separation of the different quality fractions

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  • Meyer-Aurich, Andreas
  • Gandorfer, Markus
  • Weersink, Alfons
  • Wagner, Peter

Abstract

The paper analyzes site-specific and uniform management options for wheat production with respect to grain quality. Besides site-specific fertilization the economic potential of segregation of different grain qualities is the subject of this paper. Yield and quality response to fertilizer were taken from field experiments in Germany to calculate site-specific response functions. The economic optima were calculated for uniform management (UM), complete separate management of the subfields (SM), site-specific fertilization (SSF) and grain segregation (GS) for different price structures according to different grain qualities. The results show that over all price structures, highest economic potential was found with SM or SSF compared to UM. However, these management practices require the possibility to separately manage subfields (SM) or specific fertilization equipment and fertilizer algorithms (SSM). GS did not have a higher economic potential than UM. However, if required grain qualities are not met for the whole field, GS can substantially reduce profit losses by separating part of the grains and selling them at higher prices. This may save the farmer more than 50 € ha–1. In situations where higher grain qualities could only be obtained at the expense of yield penalties, premiums for higher grain qualities can create incentives for fertilizer rates beyond the yield maximizing rate. GS technologies may even boost this effect.

Suggested Citation

  • Meyer-Aurich, Andreas & Gandorfer, Markus & Weersink, Alfons & Wagner, Peter, 2008. "Economic analysis of site-specific wheat management with respect to grain quality and separation of the different quality fractions," 2008 International Congress, August 26-29, 2008, Ghent, Belgium 43649, European Association of Agricultural Economists.
    • Handle: RePEc:ags:eaae08:43649
    DOI: 10.22004/ag.econ.43649
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    References listed on IDEAS

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    1. David J. Pannell, 2006. "Flat Earth Economics: The Far-reaching Consequences of Flat Payoff Functions in Economic Decision Making," Review of Agricultural Economics, Agricultural and Applied Economics Association, vol. 28(4), pages 553-566.
    2. Neil R. Miller, 2006. "Is Site-Specific Yield Response Consistent over Time? Does It Pay?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(2), pages 471-483.
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