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Agronomic Crops Network

Ohio State University Extension


Corn Growth and Development

C.O.R.N. Newsletter Articles

  1. Corn Ear
    Author(s): Osler Ortez , Author(s): Alexander Lindsey

    Because of differences in the growing season for corn across Ohio, practitioners need a method of accurately rating crop’s maturity to inform crop management decisions for adequate yield, quality, and grain moisture at harvest. For this reason, we rate hybrid maturity based on “Growing Degree Days” (GDD), or heat units. Because a corn hybrid requires a specific number of GDD to reach maturity—a number that is independent of the crop’s total number of growing calendar days—the GDD method is accurate and should be considered by today’s practitioners.

    Issue: 2023-41
  2. Author(s): Osler Ortez

    Most of the corn acreage in Ohio is now at grain filling stages.

    Issue: 2023-29
  3. Author(s): Taylor Dill , Author(s): Laura Lindsey , Author(s): Osler Ortez

    Episode 24 of Battle for the Belt is now available:

    In Episode 24, we go to each research location with Taylor Dill and conduct yield estimates on corn. Taylor is a graduate student in the department of Horticulture and Crop science at Ohio State University.

    Yield Estimation

    Issue: 2023-28
  4. Author(s): Osler Ortez

    Most of the corn acreage in Ohio now should have reached the silking stage, except for delayed planting conditions. Some fields have already transitioned to dough and milk stages. A new simulation of 2023 end-of-season corn yield potential and crop staging was performed on August 2, using the UNL Hybrid-Maize crop model in collaboration with faculty and extension educators from 10 universities.

    Issue: 2023-26
  5.  Figure 1. Corn and soybean development across Ohio, 2023.
    Author(s): Osler Ortez , Author(s): Greg LaBarge, CPAg/CCA

    Most of the corn and soybean acreage in Ohio has reached the silking or blooming stage (Figure 1). Crop progress and development has been variable this 2023 crop season so far, in part due to variable weather including dry periods, fluctuating temperatures, and hazy skies.

    Issue: 2023-26
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