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  1. 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 ...

  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. 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) ...

  4. 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 ...

  5. 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 ...

  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. Gustavo Garay

    https://plantpath.osu.edu/our-people/gustavo-garay-0

    “Quantitative Microbial Risk Assessment with the Dose-Response models in inoculum concentration of ... fungus on leaves and fruits of Mangifera indica " Processed a pathology test in mango leaves on the ... student in a Functional Ecology Study to compare the trees of volcanic soil vs. trees serpentine soils ...

  8. 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 ...

  9. Application of High-Pressure-Based Technologies in the Food Industry

    https://ohioline.osu.edu/factsheet/fst-fabe-1001

    Balasubramaniam This fact sheet provides information on how high-pressure processing (HPP) is used to pasteurize ... food, improve food safety, and enhance food quality.  What Is High-Pressure Processing? High-pressure processing ... is also known as high hydrostatic pressure processing (HHP) and ultra-high-pressure processing (UHP). ...

  10. 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 ...

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