Comparison of Corn and Soybean Yields in the United States: Historical Trends and Future Prospects

@article{Egli2008ComparisonOC,
  title={Comparison of Corn and Soybean Yields in the United States: Historical Trends and Future Prospects},
  author={D. Egli},
  journal={Agronomy Journal},
  year={2008},
  volume={100}
}
  • D. Egli
  • Published 2008
  • Biology
  • Agronomy Journal
Developing successful strategies to ensure future increases in crop yield depends, in part, on a better understanding of the basis for past increases. To this end, I compared historical yield trends of two dissimilar crops-corn (Zea mays L.), a high yielding C 4 grass, and soybean [Glycine max (L.) Merr.], a moderate yielding C 3 legume-in high (Iowa, Illinois, Indiana) and low (Kentucky, Missouri, Tennessee) yield environments. Average state corn yield changed very little from 1866 to 1930, an… Expand

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