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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. Postdoctoral research demonstrates power of machine learning to advance ecosystem prediction

    https://fabe.osu.edu/news/postdoctoral-research-demonstrates-power-machine-learning-advance-ecosystem-prediction

    a peer-reviewed journal covering research on the relationships between meteorology and the fields of plant, ... animal, and soil sciences, ecology, and biogeochemistry.   Gaur's article, titled "Explainable ... exchange of energy between plants and the atmosphere. This process is a critical component of modern land ...

  5. Corn Response to Long-Term Weather Stressors

    https://ohioline.osu.edu/factsheet/anr-0150

    early, it calculates the time needed for the soil to warm so crop planting can proceed with a lower risk ... these challenges through management decisions. Drought and High Temperatures An increased frequency of ... continue to increase, leading to variable soil moisture across the midwestern United States (Crimmins et ...

  6. Meet Ashley Bergman: 2024 CFAES Distinguished Senior

    https://fabe.osu.edu/news/meet-ashley-bergman-2024-cfaes-distinguished-senior

    took a basic drafting and AutoCAD course my senior year of high school which I enjoyed. I discovered ... them.  How are you involved on campus? I've been an active member of the Ohio State Crops and Soils ...

  7. 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) ...

  8. Opportunities for Sub-surface Nutrient Placement in Ohio

    https://ohioline.osu.edu/factsheet/fabe-56401

    horsepower requirements, the level of tillage and soil disruption, depth of fertilizer placement, and ... while leaving the soil between these strips undisturbed. When the strip-till unit is equipped with ... leaving residue on the soil surface between the strips. Quicker spring soil warm-up compared to no-till ...

  9. Blacklegged (Deer) Tick, Ixodes scapularis

    https://ohioline.osu.edu/factsheet/ent-0096

    considered a statewide risk, though abundance may vary greatly across different habitats. Life Cycle, ... with high leaf-litter coverage, but may also include your own backyard, especially shaded areas of ... odh.ohio.gov/know-our-programs/zoonotic-disease-program/diseases/tickborne-diseases Lyme Disease, Centers for Disease Control and Prevention (CDC)— cdc.gov/lyme/index ...

  10. A Guide to Corn Growth and Development

    https://ohioline.osu.edu/factsheet/anr-0148

    maturity). Vegetative and reproductive stages of development are determined when 50% or more of the plants ... coleoptile emerges through the soil surface (Figure 2). The root system consists of the radicle (with branch ... roots) and seminal roots. The number of calendar days between planting and emergence varies and is ...

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