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Agronomic Crops Network

Ohio State University Extension


C.O.R.N. Newsletter

  1. When considering adjusting your corn nitrogen program for dry weather conditions, consider how N gets to the root system for uptake. Mass flow is the primary mechanism for nitrogen (also sulfur, magnesium, and calcium). Mass flow is where nutrients in soil solution move toward the root as the plant takes up and transpires water through the crop canopy. Also, consider how dry weather affects the plant root system. Root growth will slow in dry soils, the situation we are now experiencing in the upper soil depths.

    Issue: 2023-17
  2. Author(s): Eric Richer, CCA

    Throughout this winter meeting season, fertilizer has been a hot topic. Generally, the discussion has been around nitrogen price and availability. Most of us have little to no influence on price or availability, but as a farmer, you decide your corn (and wheat) nitrogen rates, assuming you can get the nitrogen product you want. Your corn nitrogen rate could likely cost $100 per acre more in 2022 as compared to the year prior and nitrogen will probably surpass seed as the most expensive variable cost per acre this year.

    Issue: 2022-05
  3. Author(s): Steve Culman , Author(s): Greg LaBarge, CPAg/CCA

    Nitrogen fertilizer is a major cost in corn production and is a big lever that drives yield. However, not every pound of N fertilizer yields the same return on investment. The first several dozen pounds applied to a corn crop yields large returns in grain, with subsequent pounds still offering returns, but not as effective as before.

    Issue: 2021-39
  4. Author(s): Amanda Douridas, CCA , Author(s): Mike Estadt

    As many producers are getting ready to side-dress corn, the agronomic crops team will host a free webinar on June 10th focused on important considerations and practices to achieve the efficient application of nitrogen. The webinar will be the first session of a new series called CORN Live which will be offered throughout the growing season to address timely issues related to agronomic crop production and management as they emerge.

    Issue: 2021-17