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  1. Calculating Cation Exchange Capacity, Base Saturation, and Calcium Saturation

    https://ohioline.osu.edu/factsheet/anr-81

    example of typical soil test levels in Ohio (in ppm). We can calculate the collective charge each cation ... by the soil test levels. For calcium, a soil test level of 2000 ppm, divided by 200 equals 10.0 ... (ppm) to meq/100 g soil for base and acid cations to determine CEC. Base Cation Soil test level (ppm ...

  2. 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 ...

  3. Phosphorus (P) Nutrient Use in Ohio

    https://ohioline.osu.edu/factsheet/anr-0143

    percent of Ohio counties had decreasing trends in mean soil test P (STP) levels between 1993 and 2015. ... a large degree for given soil test P (STP) values and crop production levels. In instances with the same ... reduced median soil test P (STP) levels across most Ohio counties from 1995 to 2015 supports this finding ...

  4. Agricultural Water

    https://producesafety.osu.edu/agricultural%20water

    producers should follow the microbial criteria and testing requirements in the final Produce Safety Rule. ... first year (baseline) and then tested five times every year thereafter.  Water must meet a microbial ... (baseline) and then tested once every year thereafter.  Water must meet a microbial standard of a geometric mean of  ...

  5. Metro High School

    https://fabe.osu.edu/node/10827

    Encore House Aimee Moore kw Wednesday, March 20, 2024 (All day) ...

  6. Winter Wellness

    https://fairfield.osu.edu/events/winter-wellnes

    wellness plan this winter.  In this presentation, you will learn the signs, symptoms and risk factors for ... 7:30 p.m. Where: Wagnalls Memorial Library, 150 East Columbus St., Lithopolis, OH Registration: Call ...

  7. 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 ...

  8. Fresh Produce Traceability

    https://producesafety.osu.edu/traceability

    Data Elements (KDE).  The  Food Traceability List (FTL) identifies high risk foods for which the ...

  9. 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 ...

  10. Master Gardener Volunteer Forms

    https://butler.osu.edu/program-areas/master-gardener-volunteers/master-gardener-volunteer-forms

    Programs with Minors, Policy 1.50 Activities and Programs with Minors, Policy 1.50 Signature Page ...

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