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  1. Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values

    https://ohioline.osu.edu/factsheet/anr-75

    Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...

  2. Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field

    https://ohioline.osu.edu/factsheet/agf-509

    site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...

  3. ANR-841-2E: Tobacco Sucker Control

    https://ohioline.osu.edu/factsheet/anr-0841-2e

    that have a longer duration between topping and harvesting. However, individual burley varieties may ... long. When To Use Before a systemic sucker-control chemical is used, plants should be topped when 50% or ... in the past discouraged purchases of burley tobacco by foreign buyers. Experiment station field tests ...

  4. Grapevine Nutrient Management: Petiole Sampling and Analysis

    https://ohioline.osu.edu/factsheet/hyg-1438

    availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...

  5. Farm Science Review

    https://hardin.osu.edu/news/farm-science-review-0

    drone spraying, high-clearance robotic irrigation system capable of applying animal nutrient sources to ... planning, provide in-field high accuracy position information, track progress, and enable remote monitoring ... varying levels of autonomy ranging from remote monitoring via tractor-mounted cameras to on-board ...

  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. Business Law

    https://farmoffice.osu.edu/law-library/business-law

    Business Entities to Manage Farm Liability Risk-- Moore and Ishee (2023) Using Multiple Business Entities ...

  8. Ohio Commercial Pesticide Recertification Conference- Columbus- 2024

    https://pested.osu.edu/events/ohio-commercial-pesticide-recertification-conference-columbus-2024

    Center 400 N High Street Columbus, Ohio 43215   Driving directions to Columbus Convention Center     Menu ...

  9. Ammonia Emission from Animal Feeding Operations and Its Impacts

    https://ohioline.osu.edu/factsheet/AEX-723.1

    50 ppm, increased levels of keratoconjuctivitis and tracheitis have been observed. These trachea and ... causes high ammonia levels inside animal production buildings, especially in winter months when the ... concentrations. People begin to detect odors at 5–50 ppm. Irritation to mucous surfaces occurs at 100–500 ppm ...

  10. Partners Gather to Kickoff Pilot Watershed Project

    https://fabe.osu.edu/news/partners-gather-kickoff-pilot-watershed-project

    quality changes in a productive agricultural watershed. The project will evaluate soil health, nutrient ... Bowling Green State University will lead research to examine soil health in the watershed and identify ... project.  Doug Deardorff,  resource conservationist with Hardin Soil and Water Conversation District serves ...

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