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Agronomic Crops Network

Ohio State University Extension


C.O.R.N. Newsletter

  1. Potassium (K) is an essential plant nutrient. We measure available soil K with a soil test and add fertilizers when the soil available K is insufficient to meet crop needs. There are economic benefits to making informed decisions about K fertilizer use. The under-application of K fertilizer can result in reduced yields, while over-application adds to input costs, with economic losses resulting from both scenarios.  

  2. Author(s): Elizabeth Hawkins

    The Ohio Agribusiness Association and Ohio State University Extension invite you to the 4R Technology Review Field Day. This event will bring together experts in the field of agriculture technology and conservation to share their knowledge and best practices for implementing 4R nutrient management. Attendees will have the opportunity to explore the latest technology and techniques in fertilizer management, precision agriculture, and soil health.

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

    Episode 23 of Battle for the Belt is now available:

    Issue: 2023-27
  4. Tractor pulling drill planter through wheat stubble planting double crop soybeans
    Author(s): Glen Arnold, CCA

    Wheat harvest is underway in parts of the state and some farmers are planting double-crop soybeans. The summer manure application window following wheat harvest is typically the 2nd largest application window each year. In recent years there has been more interest from livestock producers in applying manure to newly planted soybeans to provide moisture to help get the crop to emerge.

    Issue: 2023-21
  5. A dry fall has led to an increased number of field fires. Farmers have asked a few questions about how a field fire impacts nutrients. A quick review of several Extension resources gives us helpful information. There are two things to consider in assessing the actual losses. One, how completely did the fire consume the residue? Second, what is the coverage area? The highest losses will be when the residue is absent.

    What nutrients are lost?

    Issue: 2022-39
  6. “What are the right decisions for phosphorus management in crop production that reduce water quality impacts?” is a common question I have from farmers looking to improve yield yet are concerned about downstream water quality impacts of phosphorus.

    Issue: 2020 - 30
  7. USDA’s Ohio Natural Resources Conservation Service is inviting input, until August 31, 2020, during a 30-day comment period on their draft revisions to the Nutrient Management Practice Standard (Code 590). If approved, this Nutrient Management Standard would revise the current Ohio Field Office Technical Guide (FOTG) and provide the criteria and considerations required for all USDA Farm Bill financial and technical assistance related to the application of plant nutrients and manures.

    Issue: 2020-25
  8. Author(s): Laura Lindsey , Author(s): Steve Culman , Author(s): Emma Matcham

    When soybean prices are low, inputs need to be carefully considered. Will I get a return on my investment?

    Issue: 2020-21
  9. Author(s): Laura Lindsey , Author(s): Steve Culman

    Potassium deficiency symptoms of corn and soybean include yellowing/browning of lower (older) leaves with edges exhibiting symptoms first. Potassium deficiency symptoms can indicate low soil test potassium (K), but may also be related to recent dry soils, compaction, and poor root growth.

    Issue: 2020-21
  10. A new factsheet highlights eight steps to reducing edge of field P losses while maintain soils for increase crop production. The Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field-AGF-509 ( highlight practices that can be used to reduce edge of field losses of P. There are eight field specific steps to considered.

    Issue: 2019-35