Corn Growth and Development

C.O.R.N. Newsletter Articles

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

    One of the bottom-line activities in growing crops should be understanding and keeping track of crop growth and development. Crop growth is related to the increase in size. It is influenced by factors such as temperatures, water availability, stress, competition, and fertility. Crop development relates to the progress in stages, and temperatures primarily drive it.

    Issue: 2022-18
  2. Author(s): Osler Ortez

    Normally, we refer to the first half of May as a safe planting window to explore a longer growing season. Sure, weather permitting. Over May, several regions in Ohio have received enough precipitation that has not made that planting target possible, hence delayed planting. Delayed planting makes the growing season shorter in calendar days and available growing degree days (GDDs).

    Issue: 2022-16
  3. Author(s): Alexander Lindsey

    As the weather has turned warm this past week, many of our fields planted in April/early May should be emerged or be in the process of emerging. Cool temperatures paired with rain over the last few weeks may have resulted in seeds sitting in the ground longer than expected, or some fields experiencing imbibitional chilling or surface crusting as the soil dried. These conditions could result in stand reductions by preventing seeds from successfully germinating and emerging (Fig. 1).

    Issue: 2021-15
  4. Author(s): Alexander Lindsey , Author(s): Greg LaBarge, CPAg/CCA

    When we examine crop emergence post-planting, two factors can impact speed of emergence – soil moisture content and soil temperatures. If soil temperatures are lower, it can take more calendar days for emergence to occur meaning rowing corn may take a little more time. In the Ohio Agronomy Guide, emergence should begin to occur after approximately 100 air GDDs.

    Issue: 2021-13
  5. Author(s): Alexander Lindsey

    As fall is progressing, crop harvest is also occurring throughout the state. However, many producers are seeing slower than usual drydown in their corn fields this October. This may be in part due to how the weather conditions impacted corn growth and development this year.

    Issue: 2020-36
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