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  1. Pesticide Testing Opportunity

    https://fairfield.osu.edu/events/pesticide-testing-opportunity

    The Ohio Department of Agriculture will be hosting a Pesticide and Fertilizer testing opportunity ... the testing session at 12 noon. In order to be tested for any and all categories on that date, you ...

  2. 2023 Weed Control Guide for Ohio, Indiana, Illinois, and Missouri (PDF)

    https://extensionpubs.osu.edu/2023-weed-control-guide-for-ohio-indiana-illinois-and-missouri-pdf/

    soybeans, and herbicide programs for non-GMO soybeans. An index to all tables regarding herbicides is listed ...

  3. 2023 Weed Control Guide for Ohio, Indiana, Illinois, and Missouri

    https://extensionpubs.osu.edu/2023-weed-control-guide-for-ohio-indiana-illinois-and-missouri/

    soybeans. An index to all tables regarding herbicides is listed on the back cover for easy navigation and ...

  4. Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values

    https://ohioline.osu.edu/factsheet/anr-75

    Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...

  5. Accepting Participants for 3 Minute Thesis Competition

    https://grad.cfaes.ohio-state.edu/news/accepting-participants-3-minute-thesis-competition

    presentation) winners, to compete at the 3MT college level completion. The 3MT is an extension of the Hayes ... https://gradsch.osu.edu/three-minute-thesis-3mt This year's 3MT competition is using a new process which will include a college-level review. ... university level competition. ...

  6. Disease Resistance and Tolerance

    https://agcrops.osu.edu/node/4416

    use of hybrid resistance and tolerance to minimize crop losses.  Hybrid response to high population ... shown positive yield response to higher populations cannot be grown at high plant densities because of ... the increased risk of lodging at harvest. Lodging reduces yields and slows the harvest operation. ...

  7. Yield Potential and Stability

    https://agcrops.osu.edu/node/4414

    Choose hybrids that have produced consistently high yields across a number of locations and/or ... years. The Ohio Corn Performance Tests (OCPT) indicate that hybrids of similar maturity vary in yield ... high yields; instead, look for stability in performance across environments.  Most of the hybrids ...

  8. Growing Degree Day (GDD) Maturity Rating System

    https://agcrops.osu.edu/node/4413

    (T min) is less than 50 degrees Fahrenheit, 50 is used to determine the daily average. The high ... calculation method most commonly used for corn in the U.S. is the 86/50 cutoff method. GDD are calculated as ... the average daily temperature minus 50.  If the maximum daily temperature (T max) is greater than 86 ...

  9. Grapevine Nutrient Management: Petiole Sampling and Analysis

    https://ohioline.osu.edu/factsheet/hyg-1438

    availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...

  10. Plan Now for Fall Fertilization of Perennial Forages

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-26/plan-now-fall-fertilization-perennial-forages

    When soil test P exceeds the agronomic level of 50 PPM, there is increased  potential of P losses into ... For example, many dairies have high levels of soil P, making the expense of fertilizer P unnecessary. ... over-application harms the environment and can harm animals fed those forages. A recent soil test should always ...

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