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  1. 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 ...

  2. 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 ...

  3. Forage Testing for Beef Cattle

    https://ohioline.osu.edu/factsheet/anr-0149

    0.12% Mg. High soil potassium levels are associated with increased incidence of grass tetany. The ratio ... (ppm). If the forage contains a high level of molybdenum (2 ppm) or sulfur at 0.25%, Cu could be ... samples are low in Zn. The recommended levels for zinc are between 30 and 1,000 parts per million (ppm ...

  4. Understanding How Soil Test Phosphorus Impacts Water Quality

    https://ohioline.osu.edu/factsheet/anr-0111

    Soil test P is one indicator of environmental P loss potential from a field. STP values above 100 ppm ... Tests as Risk Indicators for Leaching of Dissolved Phosphorus from Agricultural Soils in Ontario. Soil ... called eutrophication, results in depleted dissolved oxygen in water bodies. A soil test for P (STP) ...

  5. Annual Bluegrass Weevil

    https://ohioline.osu.edu/factsheet/ent-0095

    overwinter in grass near tree lines, in leaf litter, moss, high-cut grass, and pine litter. In spring, they ... plant’s crown. The last (fifth) instar larvae pupate near the soil surface and then emerge as adults, ... Larvae start to appear in the soil during the full bloom of Catawba rhododendron hybrid. However, the ...

  6. Drones for Spraying Pesticides—Opportunities and Challenges

    https://ohioline.osu.edu/factsheet/fabe-540

    likely to cause a significant level of soil compaction resulting in reduced crop yield. Spot spraying, ... increasing interest in drone spraying and the high level of public demand for relaxation of current rules and ... data points: soil characteristics (type, moisture content, and nutrient content) location of drainage ...

  7. The Farm Income Enhancement Program hosts Farm Credit Mid-America visit to AEDE

    https://aede.osu.edu/news/farm-income-enhancement-program-hosts-farm-credit-mid-america-visit-aede

    meeting will also strengthen interactions and engagement between AEDE and FCMA. ...

  8. 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 ...

  9. Faculty and Projects Summer 2024

    https://grad.cfaes.ohio-state.edu/future-students/opportunities-undergraduates/summer-research-experiences/faculty-and-projects-summer

    agricultural sustainability. Potential Summer Research Projects: Exploring connections between soil health and ... how do plants, animals & soil interact. She especially enjoys the complexity an animal brings to ... resilience of Ohio farms Greenhouse gas emissions from flood-prone grazed pastures Finding economic and soil ...

  10. Students of Agronomy, Soils and Environmental Sciences Spring Regional Meeting

    https://hcs.osu.edu/news/sases24

    The Ohio State University's Agronomy Crops & Soils Club is thrilled to announce ... Testing Tour 3 – Northeast Ohio: POET Bioprocessing, Wellington Implement, Pearl Valley Chees   Meeting ...

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