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Agronomic Crops Network

Ohio State University Extension


2017 On-Farm Fertilizer Trials for Corn, Soybean, and Wheat

Ohio State is looking for farmer cooperators and crop consultants to help conduct on-farm field trials for the 2017 field season. The 2017 field season will likely be our last year of field trials before Ohio fertilizer recommendations are updated and/or revised. We are looking specifically at N, P, K and S in corn, soybean and wheat. We are collecting data from a large number of farms across the state to determine fertilization rates that maximize farmer profitability. These trials should be considered an opportunity to learn more about your farm’s fertility needs, but also contribute to a state-wide effort for better nutrient management and water quality outcomes.

We can work either directly with farmers, or contract crop consultants and agronomists to conduct the trials and collect data on farmers’ fields. Farmers can choose which nutrient they’d like to work with and will have a large degree of flexibility in the plot layout and applied rates. We have funds to compensate both farmers and crop consultants for their time and effort.

Here is a ranking of priorities for trials in 2017.

  • Top Priority

    o   P and K in corn, soybean or wheat. We are especially interested in fields that test low in P and K

  • Second Priority
    • Sulfur in corn, soybean or wheat
    • Starter P in corn
  • Third Priority
  •    Late season N in corn
  •    N rate trial in corn and wheat

For more information, please see or contact Steve Culman at or (330) 822-3787.

If you are interested in enrolling please go to:

Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.