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  1. 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 ... are rare in Ohio. Magnesium (Mg) 50–1,000 100–2,000 Levels less than 20 ppm are a concern. Dolomitic ... recommendation tables, a conversion of P and K soil test values is needed if they are not reported as ppm using ...

  2. 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 ...

  3. 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 ...

  4. Corn Silage and Foliar Disease

    https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-24-issue-4/corn-silage-and-foliar-disease

    contamination of corn silage and high moisture corn with many nutritionists encouraging levels below 1 ppm in ... with DON levels as high as 17.9 ppm in one hybrid and 30.3 ppm in the other hybrid. Again, fungicide ... by at least 50%. The trial was then expanded the second year, which was a high disease pressure year ...

  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. Seeding Perennial Forages in Late Summer

    https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-24-issue-4/seeding-perennial-forages-late-summer

    30 to 50 ppm Mehlich-3 and for grasses 20 to 30 ppm Mehlich-3. The optimal soil potassium level is ... much tillage depletes soil moisture and increases the risk of soil crusting. Follow the "footprint ... and clovers should have a pH of 6.0 or above. The optimal soil phosphorus level for forage legumes is ...

  7. 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 ...

  8. Reminder Homecoming Registration Open

    https://advancement.cfaes.ohio-state.edu/email/reminder-homecoming-registration-open

    https://www.facebook.com/OSUFoodAgEnv?utm_campaign=last%20call%20for%20alumni%20... https://twitter.com/cfaes_osu?utm_campaign=last%20ca&utm_source=bbis&utm_medium ... =... https://www.instagram.com/osucfaes/?utm_campaign=las&utm_source=bbis&utm_medium=... https://www.youtube.com/channel/UC9zTurj_CO6ZMxNFq_MYoqQ NoCollege of Food, Agricultural, and ...

  9. Soil Sampling to Develop Nutrient Recommendations

    https://ohioline.osu.edu/factsheet/AGF-513

    over the entire field, changes in soil test levels in two areas over a 10-year period are shown. Table ... 1 ppm 20 8 2 20 8 2 20 8 2 Expected ppm change in soil test over 10 years 3 0 0 +5 +10-6-11 1 Crop ... to change soil test 1 ppm is 6–10 depending on cation exchange capacity. 3 Example calculation: ...

  10. Choosing a Laboratory for Nutrient and Soil Health Testing

    https://ohioline.osu.edu/factsheet/anr-0107

    State University Extension Soil testing provides key information about soil nutrient availability. It is ... a complete picture of overall soil health. Farmers, gardeners, and landowners can use soil testing data to ... optimize their nutrient management plans. Implementing recommendations based on soil test data prevents ...

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