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  1. Crop Response to Potassium Fertilizer in Ohio

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-04/crop-response-potassium-fertilizer-ohio

    of yield penalty with no K application decreases as soil K levels go above 100 ppm. If the soil test ... (2023) classified Mehlich-3 soil K levels into <70, 70-100, 100-130, 130-160, and >160 ppm to ... yield, the higher the yield increase from K fertilizer.   Generally, as the soil test K levels decreased, ...

  2. Crop Response to Phosphorus Fertilizer in Ohio

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-03/crop-response-phosphorus-fertilizer-ohio

    soil P levels go above 20 ppm. If the soil test P level is less than 20 ppm, there is an increased risk ... less than 10 ppm, the median relative yield was 87%. As the soil test P level increased above the ... the Mehlich-3 soil test P level. The Mehlich-3 soil P measures the readily available soil P for crop ...

  3. OSU Deoxynivalenol, DON, Resistance Screening Program-2024

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-06/osu-deoxynivalenol-don-resistance-screening-program-2024

    and consistently lower DON levels are easier to keep low than those that were highly susceptible. ... temperatures between 59 ° F and 86 ° F.   Table 1 below summarizes the DON ppm as an average across locations ... lowest average DON level. The variability among some of the hybrids with high DON levels led to high ...

  4. Topdressing Wheat with Liquid Manure

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-06/topdressing-wheat-liquid-manure

    know the manure’s nitrogen content. Most manure tests reveal total nitrogen, ammonia nitrogen and ... between 30 and 40 pounds of ammonia nitrogen per 1,000 gallons. Finishing buildings with bowl waters and ... drag hoses when topdressing wheat. The concern with manure tankers is soil compaction, especially on ...

  5. Graduate Exit Seminar- Ashlyn Halseth

    https://senr.osu.edu/events/graduate-exit-seminar-ashlyn-halseth

    results in high levels of morbidity and mortality. Despite its impact, the disease dynamics and individual ... risk of infestation for coyotes (Canis latrans) in urban environments remain understudied. As human ...

  6. Ippolito Research Team

    https://senr.osu.edu/IppolitoResearchTeam

    the Soil Management Assessment Framework (SMAF) and the Haney Soil Health Test (HSHT) in diverse ... Jim Ippolito Rattan Lal Endowed Professor of Soil Health and Soil Fertility within SENR Jim has ... 30+ years of experience focused on soil health across numerous ecosystems.  Jim also works with land ...

  7. New Pesticide Applicator Training

    https://mahoning.osu.edu/events/new-pesticide-applicator-training-0

    common questions and test day preparation strategies to get you ready for testing.  The registration fee ...

  8. Wheat Planting Management Considerations for Fall 2023

    https://agcrops.osu.edu/newsletter/corn-newsletter/2023-32/wheat-planting-management-considerations-fall-2023

    than corn or soybean, and soil test levels should be maintained between 30-50 ppm (Mehlich-3 P) for ... optimum production (Table 1). Do not add phosphorus if soil test levels exceed 50 ppm. Soil potassium ... should be maintained at levels of 100-130 and 120-170 ppm (Mehlich-3 K) on sandy soils (CEC < ...

  9. Graduate Exit Seminar- Emily Rabung

    https://senr.osu.edu/events/graduate-exit-seminar-emily-rabung

    important partner for protecting species at risk of extinction. About a third of all species that are listed ... risk and conflict, and how the DoD has positioned itself today as a developer of new conservation ...

  10. Using Drones for Spray Application- Adoption Trends in US and Worldwide

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-06/using-drones-spray-application-adoption-trends-us-and-worldwide

    attractive for many countries around the world mainly for five reasons: (1) The topography or soil conditions ... reduce the risk of applicators being contaminated by the pesticides (backpack sprayers, which pose ... significant health risk to their users, are the most preferred spray equipment in many countries), and 5) lack ...

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