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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. Graduate Exit Seminar- Josephine Duffy

    https://senr.osu.edu/events/graduate-exit-seminar-josephine-duffy

    vegetation and soil. Reclaimed mineland soils are often highly compacted and depleted of plant-available ... and Soil Compaction in a Reclaimed Mineland." Abstract:  Strip-mining has extensive impacts on ... grasses and forbs. The combined effects of competitive non-native species and poor quality soils often ...

  3. New ANR Factsheet Summarizing Corn Response to Long-Term Weather Patterns

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-19/new-anr-factsheet-summarizing-corn-response-long-term-weather

    many fields are still okay given good soil moisture levels below the surface from past rains. The corn ... include: Drought and High Temperatures Solar Radiation and Light Availability Variability in Heat Unit ...

  4. Battle for the Belt: Season 2 Episode 12- Nitrogen Recommendations for Corn

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-19/battle-belt-season-2-episode-12-nitrogen-recommendations-corn

    Episode 12, we discuss nitrogen management in corn with Dr. Manbir Rakkar, the Ohio State Soil Fertility ... a major essential nutrient but the relationship between corn yield and nitrogen input is not always ... application at the V4/V5 stage, this application is necessary for yield, and crop uptake is at a high from the ...

  5. 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 ...

  6. 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. ...

  7. Fertility Management of Meadows

    https://ohioline.osu.edu/factsheet/anr-5

    nutrition, forage test to check for adequate levels. When the soil pH is below 5.0, aluminum availability ... critical soil test level of 15-25 parts per million (ppm) phosphorus for Bray P1 test results or 28-40 ppm ... leaching. The critical soil test levels for potassium are 125-200 ppm. Plants have the ability to take up ...

  8. Regional Updates: June 11 – 17, 2024

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-19/regional-updates-june-11-%E2%80%93-17-2024

    scattered rain this past week, and most areas still have adequate soil moisture. Northwest – Kyle Verhoff, ... applications are still being made. Soybean is in good condition and most fields are between VC and V3 growth ...

  9. SCN and Soil Health Testing Opportunity for Ohio Growers

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-15/scn-and-soil-health-testing-opportunity-ohio-growers

    during, or after planting. Conducting a soil test in spring will indicate if SCN is present and the levels ... utilized for SCN testing. Additionally, by submitting your soil samples for SCN testing to our lab, you ... determine the most effective management strategy. It is crucial, therefore, to test your fields and know ...

  10. Rapid Growing Degree Day Accumulation in May

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-17/rapid-growing-degree-day-accumulation-may

    1 now sitting between 600 and 1000 (north to south). Precipitation was highly variable. Parts of west ... central, northeast, and southeast counties only received 1-2” (50-75% of normal). Other areas including ... monthly climate summaries. Weather Forecast Warm, summer-like weather will start the week off, with highs ...

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