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  1. Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage

    https://ohioline.osu.edu/factsheet/AC-52

    screening steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5 ppm) or within ... (DON), also called vomitoxin. As a result, high levels of Gibberella ear rot severity and moldy grain are ... usually accompanied by high levels of vomitoxin. Mycotoxins are harmful to both humans and animals. ...

  2. Dr. Tyler Carr

    https://hcs.osu.edu/our-people/dr-tyler-carr

    Columbus Campus PhD Plant, Soil, & Environmental Sciences- The University of Tennessee (2022) MS ... you interested in this field? My father was the high school baseball coach in White Hall, AR, a small ... I spent more time working on the field than playing on it during my final high school years.   Exciting ...

  3. 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 ...

  4. Turfgrass Seminar

    https://hcs.osu.edu/courses/hcs-5890

    the process involved in solving turfgrass problems at the managerial level. Using real-life scenarios ...

  5. 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 ...

  6. Developing Phosphorus and Potassium Recommendations for Field Crops

    https://ohioline.osu.edu/factsheet/AGF-515

    + (0.05 x CEC))] + (YP x CR) + 20 CL is the critical level (100 ppm at a CEC of 10), STL is the soil test ... test results are based on soil calibration studies that correlate soil test levels to crop yield ... crop (buildup stage). Once soil test values reach the critical soil test level, a maintenance approach ...

  7. Interpreting a Soil Test Report

    https://ohioline.osu.edu/factsheet/agf-0514

    suitability to grow a chosen crop. Phosphorous and potassium soil test levels help us know if fertilizer is ... values is needed if they are not reported as ppm using a Mehlich 3 soil test. Soil test values reported ... in pounds per acre are converted to ppm by dividing pounds per acre by 2. If phosphorus soil test ...

  8. Dr. Dominic Petrella

    https://hcs.osu.edu/our-people/dr-dominic-petrella

    I am also interested in the interactions between light and other stresses, such as the role of ... high-intensity light stress on cold tolerance and cold acclimation in a diverse range of turfgrass species and ...

  9. Ohio Data that Shaped the Tri-State Fertilizer Recommendations

    https://ohioline.osu.edu/factsheet/agf-518

    that very low soil test levels require high fertilizer rates, but as soil test levels increase, our ... able to answer the question, “At what soil test level should I apply fertilizer to see a yield ... response?” To answer this question, we need to establish a critical soil test level.  For each trial, we ...

  10. Dr. James S. Owen Jr.

    https://hcs.osu.edu/our-people/dr-james-s-owen-jr

    Dr. James S. Owen Jr. Associate Professor (Affiliate) 50% Teaching | 50% Research ... Jim.owen@usda.gov (757) 374-8153 Williams Hall (215A) Wooster Campus PhD Horticultural Science with a minor in Soil ... BS Plant & Soil Science- University of Kentucky (1999) Horticultural Science Jim Owen is ...

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