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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. Fertilizing Perennial Forages on Dairy Farms

    https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-24-issue-4/fertilizing-perennial-forages-dairy-farms

    test P exceeds the agronomic level of 50 ppm, there is increased  potential of P losses into streams ... Many dairy farms have high levels of soil P, making the expense of fertilizer P unnecessary. When soil ... harm animals fed those forages. A recent soil test should always guide what nutrients to apply and how ...

  3. 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 ...

  4. Milk Prices, Costs of Nutrients, Margins, and Comparison of Feedstuffs Prices

    https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-24-issue-6/milk-prices-costs-nutrients-margins-and-comparison

    protein and energy ingredients. To estimate profitability at these nutrient prices, the Cow-Jones Index ...

  5. 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 ...

  6. 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 ...

  7. CARTEENS Class

    https://franklin.osu.edu/events/carteens-class-98

    regardless of age. Credit card payment is required in the amount of  $50.  Click here  to register. *THIS ...

  8. FABE Professor's Group Selected for NASA’s ECOSTRESS Science and Applications Team

    https://fabe.osu.edu/news/fabe-professors-group-selected-nasa%E2%80%99s-ecostress-science-and-applications-team

    allow the team to develop novel methods to integrate ECOSTRESS and Soil Moisture Active Passive (SMAP) ...

  9. Chestnut Anthracnose

    https://ohioline.osu.edu/factsheet/plpath-fru-0051

    tissue. While rare, orange spore masses can form on the shell lesions during prolonged periods of high ... turgid, the tissue is healthy. The squeeze test works only on fresh chestnuts that are fully hydrated. On ... parents in seedling orchards. Table 1. Level of anthracnose incidence in commercially grown chestnut ...

  10. Gypsum for Agricultural Use in Ohio—Sources and Quality of Available Products

    https://ohioline.osu.edu/factsheet/anr-20

    to elevated levels. Unwashed FGD by-products can have levels of B sufficiently high to result in ... Professor This fact sheet provides information on gypsum as a soil amendment, the sources and mineral ... metal content of gypsum samples.  The Role of Gypsum as a Soil Amendment Gypsum is hydrated calcium ...

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