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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. Spring Forage Establishment

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-08/spring-forage-establishment

    Recommendations (https://forages.osu.edu/forage-management/soil-fertility-forages). Phosphorus levels for grass ... are optimal in the 20-40 ppm range, while the range for legumes is 30-50 ppm. When it comes to ... potassium the optimal range is 100-130 ppm for sandy soils with a CEC less than 5, for loam and clay soils ...

  3. 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 ...

  4. Spring 2024 Weather & Soil Conditions: Update 4

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-11/spring-2024-weather-soil-conditions-update-4

    with high flows on all the major rivers. Soils remain saturated compared to late winter conditions ... bump soil temperatures up into the 50s to low 60s by early next week. For more complete weather records ... average highs in the upper 50s to mid 60s. Showers should exit the state on Wednesday, with high pressure ...

  5. Battle for the Belt: Season 2 Episode 4- Chilling Injury

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-11/battle-belt-season-2-episode-4-chilling-injury

    conditions using some lab experiments. We planted soybeans into field soil (starting at 20% or 60% available ... 50°F or 35°F, cut the emergence totals in half. Application of ice after planting was less damaging to ... less) compared to those planted at the normal depth of 1.5-inch when the soil was drier (20% available ...

  6. Look Out for Nitrogen Loss Due to Heavy Rains

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-09/look-out-nitrogen-loss-due-heavy-rains

    N fertilizer was applied recently in such fields, especially without incorporation into the soil, there is high ... in Corn from Recent Storms Determine N in the soil: Pre-Sidedress Nitrogen test (PSNT) can be done to ... N would be needed in this article: Estimated and Soil Test Methods to Determine Supplemental N need after ...

  7. Spring 2024 Weather & Soil Conditions: Update 3

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-10/spring-2024-weather-soil-conditions-update-3

    50s and 60s on Thursday and Friday. High pressure will slowly take control over the weekend into early ... Soil Temperatures and Moisture Daily average soil temperatures jumped 5-10°F this week due to ... warmer conditions, randing from the low 50s in Ashtabula to as warm as 57°F at Western in Clark County ...

  8. FRST Fertilizer Recommendation Support Tool Launches Nationwide to Digitize Crop Nutrient Management

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-10/frst-fertilizer-recommendation-support-tool-launches-nationwide

    Recommendation Support Tool), a decision-aid that provides an unbiased, science-based interpretation of soil test ... harmonize soil testing across state boundaries. It represents an improvement in our ability to evaluate soil ... test correlation.” The new web-based tool represents a significant advancement in soil testing for ...

  9. 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 ...

  10. Wheat Management for Spring 2024

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-10/wheat-management-spring-2024

    prior to or during Feekes 5.0 with 2,4-D and other labeled herbicides. This is also a good stage to ... visible above the soil surface and is commonly referred to as ‘jointing.’ Above this node is the head or ... https://www.youtube.com/watch?v=D_f3VrqzV5c&list=PLYlh_BdeqniJ8oD8TnyGhQHRd96ptV0Yt&index=1 Most herbicide applications should be made by the time wheat enters the Feekes 6 growth stage. ...

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