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Understanding and Managing Corn Yield Potential
Agronomy & Horticulture -- Faculty Publications
  • Achim R. Dobermann, University of Nebraska - Lincoln
  • Timothy J. Arkebauer, University of Nebraska - Lincoln
  • Kenneth G Cassman, University of Nebraska at Lincoln
  • J Lindquist
  • James E. Specht, University of Nebraska - Lincoln
  • Daniel T. Walters
  • Haishun Yang, University of Nebraska - Lincoln
Date of this Version
10-30-2002
Disciplines
Comments
In Proc. of the Fertilizer Industry Round Table, October 28-30, 2002, Charleston, SC. The Fertilizer Industry Round Table, Forest Hill, MD.
Abstract

Rainfed and irrigated systems in which corn is grown either in rotation with soybean or as a continuous monocrop are the predominant cropping systems in North America. About 30 million ha of corn are harvested annually for grain in the USA, of which eleven states in the Corn Belt produce more than 210 million tons or 35% of the global corn supply (Dobermann and Cassman, 2002). During the past 35 years, average corn yields have increased linearly at a rate of 1.7 bu/acre per year (109 kg ha-1 per year, Fig. 1). Average corn yields now approach 140 bu/acre (8.8 t ha-1), but progressive farmers routinely harvest 160 to 220 bu/acre (10 to 14 t ha--1).

Citation Information
Achim R. Dobermann, Timothy J. Arkebauer, Kenneth G Cassman, J Lindquist, et al.. "Understanding and Managing Corn Yield Potential" (2002)
Available at: http://works.bepress.com/john_lindquist/28/