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  1. 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 ...

  2. 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 ...

  3. 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 ...

  4. 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 ...

  5. Estimated and Soil Test Methods to Determine Supplemental N need after Flooding

    https://brown.osu.edu/news/estimated-and-soil-test-methods-determine-supplemental-n-need-after-flooding

    than 10 pounds of N for every 2 ppm reduction in soil sample N below the expected levels listed in ... field conditions, an understanding of loss mechanisms and other estimates of loss or soil tests may help ... soil temperatures between 55 to 65 degrees Fahrenheit, approximately 2 to 3% of soil nitrate is lost ...

  6. Preventing Heart Disease

    https://ohioline.osu.edu/factsheet/AEX-982.3-11

    the risk of heart disease is reduced by 50% within just one year. And no matter how long or how much ... cholesterol level, and reduce your risk of diabetes. Meaningful Exercise Many farmers feel they receive plenty ... Screenings High blood pressure and high cholesterol damage the heart and blood vessels. Therefore, people ...

  7. Rabies Prevention in Livestock

    https://ohioline.osu.edu/factsheet/vme-0001

    making the decision about the need for rabies vaccination. Vaccination of people in high-risk jobs, such ... the usual culprits  for spreading infection in Ohio with cats and dogs occasionally testing positive ... and one fox. While skunks and dogs have tested positive in the past, no confirmed cases were reported ...

  8. Fertility Management of Meadows

    https://ohioline.osu.edu/factsheet/anr-5

    nutrition, forage test to check for adequate levels. When the soil pH is below 5.0, aluminum availability ... critical soil test level of 15-25 parts per million (ppm) phosphorus for Bray P1 test results or 28-40 ppm ... leaching. The critical soil test levels for potassium are 125-200 ppm. Plants have the ability to take up ...

  9. 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 ...

  10. Pulsed Electric Field Processing Applications in the Food Industry

    https://ohioline.osu.edu/factsheet/fst-fabe-1002

    field (PEF) processing is a new food pasteurization method that uses short bursts of high voltage ... Does PEF Work? PEF processing applies high voltage pulses (20–80 kV/cm) with a duration of milliseconds ... to microseconds to treat liquid foods placed between two electrodes (Zhang et al. 2010; Toepfl, ...

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