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Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns

Peterson, Todd
http://rave.ohiolink.edu/etdc/view?acc_num=osu1638267773276318

Abstract Details

2021, Master of Science, Ohio State University, Horticulture and Crop Science.
Many farmers typically regard wheat as a “low input” crop and expect low yields and low returns. Conversely, some farmers intensively manage wheat with many inputs and expect high yields and returns. The objective of this research was to identify inputs that improve wheat grain yield, straw yield, and economic return and reduce deoxynivalenol (DON) concentration in the grain. An incomplete factorial, omission trial was established at two locations in Ohio (South Charleston and Custar) during the 2019-2020 and 2020-2021 growing seasons. Treatments consisted of intensive management (IM) which received all inputs, a traditional management (TM), and the individual addition or removal each input from the TM or IM, respectively. The inputs were a high seeding rate, a high N rate, a split application of N, a spring sulfur application, a fungicide application at Feekes 9, and a fungicide application at Feekes 10.5.1. Intensive management increased grain yield at three of the site-years during this study by an average of 0.83 Mg ha-1. At the South Charleston location, in general, the use of a fungicide at either timing proved to be important for protecting yield. The addition of a fungicide at Feekes 10.5.1 to the TM significantly protected yield both years by an average of 0.66 Mg ha-1 and the removal of this fungicide from the IM significantly decreased yield by 0.63 Mg ha-1 in 2021. Additionally, at the same location the addition of a fungicide at Feekes 9 to the TM and the removal of a fungicide from the IM significantly changed yield in 2020 by 0.81 and -0.71 Mg ha-1. At Custar, only one treatment significantly changed yield in either year. In 2021, the removal of split N from the IM significantly reduced grain yield by 0.44 Mg ha-1. Straw yield was not consistently affected by any treatment in this study. DON concentration was significantly reduced by the IM at South Charleston both years due to the addition of a fungicide at Feekes 10.5.1. Intensive management did not increase partial economic returns at any site-year during this study and individual treatment affects were inconsistent. These results suggest that although IM has can improve grain yield and quality it fails to do so economically at the prices used in this study.
Laura Lindsey (Advisor)
Pierce Paul (Committee Member)
Tim Haab (Committee Member)
99 p.
Agricultural Economics; Agriculture; Agronomy
wheat; grain yield; grain quality; deoxynivalenol; DON; Fusarium Head Blight; FHB; straw yield; straw; yield; economic returns; profit; partial returns; income; ROI; high input; omission trial; fungicide; feekes; nitrogen; sulfur; sulphur; intensive management; traditional management; seeding rate; planting rate;

Recommended Citations

Citations

  • Peterson, T. (2021). Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1638267773276318

    APA Style (7th edition)

  • Peterson, Todd. Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns. 2021. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1638267773276318.

    MLA Style (8th edition)

  • Peterson, Todd. "Effects of High Intensity Management of Winter Wheat on Grain Yield, Straw Yield, Grain Quality, and Economic Returns." Master's thesis, Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1638267773276318

    Chicago Manual of Style (17th edition)

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