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  1. 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 ...

  2. 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 ...

  3. 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 ...

  4. Outreach and Public Service- CFI's 2022 Giving Campaign

    https://foodsafety.osu.edu/news/outreach-and-public-service-cfis-2022-giving-campaign-0

    https://buckeyefunder.osu.edu/project/34678 We know that consumers play an important role in food safety, but are often unaware of the risks ...

  5. Spring Semester 2023 Course Spotlight

    https://ansci.osu.edu/news/spring-semester-2023-course-spotlight

    be online on Tuesdays and Thursdays from 1:00-2:50 pm.   ...

  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. Advanced Agribusiness Finance

    https://aede.osu.edu/courses/aedecon-4103-0

    financial analysis, time value of money, capital budgeting, risk and return, portfolio analysis, credit ... evaluation, and risk management. Prereq or concur: 3103, or BusFin 3120 or 3220. Undergraduate 2.0 In Person ...

  8. Agricultural Finance

    https://aede.osu.edu/courses/aedecon-8202

    economics. Topics include asset pricing, capital structure, capital budgeting, risk, financial stress, and ...

  9. Laura Onianwa Joins CFI Team as Program Coordinator of Operations, Partnerships, and Learning

    https://foodsafety.osu.edu/news/laura-onianwa-joins-cfi-team-program-coordinator-operations-partnerships-and-learning

    serves as the direct interface between OSU Extension and CFI faculty and staff who work in the areas of ...

  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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