Understanding Corn Yield Potential in Different Environments

Authors

Achim R. Dobermann, University of Nebraska-LincolnFollow
Timothy J. Arkebauer, University of Nebraska-LincolnFollow
Kenneth G. Cassman, University of Nebraska-LincolnFollow
Rhae A. Drijber, University of Nebraska-LincolnFollow
J. LindquistFollow
James E. Specht, University of Nebraska-LincolnFollow
Daniel T. WaltersFollow
Haishun Yang, University of Nebraska-LincolnFollow
D. Miller, University of Nebraska-Lincoln
Darren L. Binder, University of Nebraska-LincolnFollow
Gregory Teichmeier, University of Nebraska-LincolnFollow
Richard B. Ferguson, University of Nebraska-LincolnFollow
Charles S. Wortmann, University of Nebraska-LincolnFollow

ORCID IDs

Charles S. Wortmann

Document Type

Article

Date of this Version

2003

Comments

2003 Annual Report to the Fluid Fertilizer Foundation on grant “Yield potential and optimal soil productivity in irrigated corn systems of the north-central USA”

Abstract

The UNL research program on Ecological intensification of irrigated maize-based cropping systems aims to (i) improve understanding of the yield potential of corn and soybean and how it is affected by management, (ii) develop a scientific basis for evaluating yield potential at different locations, (iii) develop practical technologies for managing intensive cropping systems at 70-80% of the yield potential, and (iv) conduct integrated assessment of productivity, profitability, input use efficiency, soil carbon sequestration, energy and carbon budgets, and trace gas emissions. Results of this work have been reported earlier (Arkebauer et al., 2001; Dobermann et al., 2002). In this paper we discuss examples of progress made in 2002, focusing on obtaining additional data sets from high-yield environments and on using crop simulation modeling for understanding yield potential.