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  1. Soil Phosphorus and Crop Response to Phosphorus Fertilizer in Ohio

    https://ohioline.osu.edu/factsheet/anr-0146

    responding to applied P can best be predicted by soil-test P levels. Recently, Culman et al. (2023) published ... 29.9% of trials, soybean in 14.2% of trials, and wheat in 36.8% trials. Critical soil test levels ranged ... Furthermore, the risk of yield loss with no P application decreased as the soil P level increased. As per the ...

  2. New research by Associate Professor Anne Fitzpatrick shows that remedial education at the secondary school level improves learning by 58%

    https://aede.osu.edu/news/new-research-associate-professor-anne-fitzpatrick-shows-remedial-education-secondary-school

    enter secondary school, students typically must pass high-stakes standardized tests. In principle these ... that teaching children at their learning level instead of grade level can significantly improve overall ... tests should screen out the weakest students, but our study finds that they are not effective at doing ...

  3. Potassium Uptake and Ohio Crop Response

    https://ohioline.osu.edu/factsheet/anr-0147

    a measure of the risk of yield loss at a given soil-test K level without fertilizer applied during the ... total K content of Ohio soils is between 12,500 ppm and 30,500 ppm (Ames & Gaither, 1913). Even ... yield. For loams and clays, this would be 170 ppm; for sandy soils, it is 130 ppm. The range of soil test ...

  4. Developing Phosphorus and Potassium Recommendations for Field Crops

    https://ohioline.osu.edu/factsheet/agf-0515

    determined using field studies to correlate soil test levels to crop yield response. Ohio data was used to ... This framework strives to build soil test levels up to and beyond a critical level, and then maintain ... these levels over time. The critical level is a key component to this framework. Soil test levels above ...

  5. Research

    https://hcs.osu.edu/research

      Agroecosystems How do plants, animals and soil interact in an ecosystem and how does that impact everything else. ... ecology, and soil science. Faculty:  David Barker  (c),  David Francis  (w),  Alex Lindsey  (c)  Laura ... cost. Bioemergent materials research is highly interdisciplinary. Faculty:  Josh Blakeslee  (c),  Jonathan Fresnedo ...

  6. PhD Program

    https://hcs.osu.edu/phd-requirements

    candidacy examination is a test of the student’s comprehension of the field, allied areas of study, their ... commencement) in which graduation is expected Completion of a minimum of 80 graduate credit hours, at least 50 ... between graduate students and the departmental administration.   How many credits should I take? ...

  7. The Organic Certification Process for Farms

    https://ohioline.osu.edu/factsheet/sag-0003

    sustainable production methods. However, organic certification is the most highly regulated food production ... biodiversity, and soil health. Organic farms do not use synthetic chemical inputs such as mineral fertilizers, ... horticultural crops. Soil health and fertility are addressed with natural sources of organic matter and soil ...

  8. Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage

    https://ohioline.osu.edu/factsheet/AC-52

    screening steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5 ppm) or within ... (DON), also called vomitoxin. As a result, high levels of Gibberella ear rot severity and moldy grain are ... usually accompanied by high levels of vomitoxin. Mycotoxins are harmful to both humans and animals. ...

  9. MS Program

    https://hcs.osu.edu/ms-requirements

    between graduate students and the departmental administration.   How many credits do I take? Autumn ... when calculating Grade Point Average. A minimum score of 550 on the paper-based Test of English as ... Battery (MELAB), or 7.0 on the International English Language Testing System (IELTS). This requirement ...

  10. Pasteurization of Raw Milk for Home Consumption

    https://ohioline.osu.edu/factsheet/hyg-5817

    if it comes into contact with tainted water, soil, animals, or other contaminated sources. Outbreaks ... canner. Fill the canner with warm water until the water level is slightly above the milk level in the ... pasteurization of raw milk (SP 50-932). nifa.usda.gov/sites/default/files/resource/Milk-Pasteurization.pdf ...

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