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Nitrogen Contribution from Red Clover for Corn Following Wheat in Western Ohio

Henry, David Christopher
http://rave.ohiolink.edu/etdc/view?acc_num=osu1293556551

Abstract Details

2010, Master of Science, Ohio State University, Soil Science.
Inclusion of a winter legume cover crop into a crop rotation has been suggested as method to provide a substantial portion of the nitrogen (N) requirement of a subsequent grass crop. While the benefits of winter cover crops such as reduced soil erosion, increased soil organic matter, and increased mulch cover have been well documented, the N contribution to the subsequent crop has shown to be variable. The objective of this study is to determine the N contribution from a red clover (Trifolium pretense, L.) cover crop following wheat (Triticum aestivum, L.) to a subsequent corn (Zea mays, L.) crop. The experiment was conduct at two western Ohio locations over three years. At both locations, red clover was either interseeded into wheat or seeded after harvest, the red clover cover crop was eliminated with tillage or herbicide application, and corn was planted with three N rates (0, 90, and 180 kg N ha-1). The data revealed that for three of the four site years (when the cover crop was successfully established) there was no N contribution attributable to the presence of red clover. The one site that did show an N contribution revealed that the amount of N contributed was less than 90 kg N ha-1. However, even when no N benefit was found, yields were improved by non-N related rotational effects. Significant reductions in N fertilization rates following a red clover cover crop are likely to result in lost corn yield opportunities in western Ohio.
Robert Mullen (Advisor)
Nicholas Basta (Committee Member)
P. Charles Goebel (Committee Member)
42 p.
Agronomy
cover crop; legume; nitrogen contribution

Recommended Citations

Citations

  • Henry, D. C. (2010). Nitrogen Contribution from Red Clover for Corn Following Wheat in Western Ohio [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293556551

    APA Style (7th edition)

  • Henry, David. Nitrogen Contribution from Red Clover for Corn Following Wheat in Western Ohio. 2010. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1293556551.

    MLA Style (8th edition)

  • Henry, David. "Nitrogen Contribution from Red Clover for Corn Following Wheat in Western Ohio." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293556551

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.