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  1. 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 ...

  2. 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 ...

  3. Interpreting a Soil Test Report

    https://ohioline.osu.edu/factsheet/AGF-514

    Soil test values may be reported in parts per million (ppm) or pounds per acre (lb/ac). To convert from ... ppm to lb/ac, multiply ppm by two. Phosphorus, potassium, calcium, and magnesium soil test values are ... 250–310 125–155 CEC=30 meq/100g 300–360 150–180 Calcium (Ca) 800–16,000 400–8,000 Levels less than 200 ppm ...

  4. 2022 Weed Control Guide for Ohio, Indiana, and Illinois (PDF)

    https://extensionpubs.osu.edu/2022-weed-control-guide-for-ohio-indiana-and-illinois-pdf/

    herbicide programs for non-GMO soybeans. An index to all tables regarding herbicides is listed on the back ...

  5. 2022 Weed Control Guide for Ohio, Indiana, and Illinois

    https://extensionpubs.osu.edu/2022-weed-control-guide-for-ohio-indiana-and-illinois/

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

  6. Extension Today: Christmas Trees

    https://extension.osu.edu/today/christmas-trees

    free fact sheets available on  Ohioline, including one that explains the differences between several ... cultivars, soil conditions, planting and pruning techniques, fertilization, and pest and disease management. ...

  7. Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field

    https://ohioline.osu.edu/factsheet/agf-509

    site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...

  8. Low-pressure Piping in Onsite Wastewater Treatment Systems for Ohio (PDF)

    https://extensionpubs.osu.edu/low-pressure-piping-in-onsite-wastewater-treatment-systems-for-ohio-pdf/

    Most soil treatment systems depend on gravity to distribute wastewater out into lateral trenches. ... entire soil treatment areas. The discussions on design and construction are intended to enable engineers, ... soil scientists, sanitarians, and installers to design, construct, and inspect low-pressure piping ...

  9. Training Manual: Ohio Agricultural Fertilizer Applicator Certification (PDF)

    https://extensionpubs.osu.edu/training-manual-ohio-agricultural-fertilizer-applicator-certification-pdf/

    Most soil treatment systems depend on gravity to distribute wastewater out into lateral trenches. ... entire soil treatment areas. The discussions on design and construction are intended to enable engineers, ... soil scientists, sanitarians, and installers to design, construct, and inspect low-pressure piping ...

  10. Ammonia Emission from Animal Feeding Operations and Its Impacts

    https://ohioline.osu.edu/factsheet/AEX-723.1

    50 ppm, increased levels of keratoconjuctivitis and tracheitis have been observed. These trachea and ... causes high ammonia levels inside animal production buildings, especially in winter months when the ... concentrations. People begin to detect odors at 5–50 ppm. Irritation to mucous surfaces occurs at 100–500 ppm ...

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