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  1. 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 ...

  2. 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 ...

  3. Ohio Agricultural Fertilizer Applicator Certification Requirements: Who Needs to Get Certified and What Steps to Take

    https://ohioline.osu.edu/factsheet/anr-0142

    certification if you  apply fertilizer to more than 50 acres for agricultural production primarily intended for ... fertilizer to lawns, sports fields, and golf courses; however, sod production on more than 50 acres is ... as many times as you need to pass, waiting five business days between attempts. Scores are posted ...

  4. 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 ...

  5. 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 ...

  6. Ohio Commercial Pesticide Applicator Requirements: Who Needs a License and What Steps to Take

    https://ohioline.osu.edu/factsheet/anr-0140

    garden center products or minimum-risk products, such as cedar oil, garlic oil, or corn gluten meal, are ... licensing and testing. Follow the steps below to become a licensed commercial applicator: Complete and mail ... — Agricultural Weed Control Category 2d — Seed Treatment Category 2e — Tobacco Sucker Control Category 2f — Soil ...

  7. Ohio Private Pesticide Applicator License Requirements: Who Needs a License and What Steps to Take

    https://ohioline.osu.edu/factsheet/anr-0141

    large enough to permit worker entry, including high tunnels and greenhouses. Greenhouse Pest Control ... soil, grain storage, greenhouse, or any other confined areas. Stored Grain Student Workbook (OSU ... option of retaking the core and category tests instead of obtaining recertification credits by attending ...

  8. 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. ...

  9. Cover Crops in the Garden

    https://ohioline.osu.edu/factsheet/hyg-5814

    benefits, results will vary depending on soil type and condition. Starting organic matter levels, tillage ... to introduce cover crops into their garden depending on their skill level and desired management ... level. This fact sheet provides basic, fact-based information that is not readily available to home ...

  10. Relative Effectiveness of Herbicides Commonly Used to Control Woody Vegetation in Forest Stands

    https://ohioline.osu.edu/factsheet/f-0051

    (S), intermediate (I), and resistant (R), or occasionally borderline between two categories (e.g., ... usually as effective as an herbicide ranked S, the herbicide will kill a high proportion of the treated ... cannot be over stressed. Not only will this minimize personal and environmental risks, but it will ...

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