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  1. 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 ...

  2. 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 ...

  3. 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 ...

  4. 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 ...

  5. Ohio Farm Custom Rates 2016

    https://ohioline.osu.edu/factsheet/aede-11-16

    $11.75 $5.50 $35.00 Soil testing / Acre $5.48 $2.83 $8.13 $5.00 $0.75 $10.50 Grid Soil Sampling / Acre ... Land Leveling / Acre $13.50 $5.64 $21.40 $11.50 $4.00 $30.00 Land Leveling / Hour $75.00 $32.72 $117.28 ...             Dry Bulk / Acre $6.25 $4.01 $8.47 $6.00 $1.50 $20.00 Liquid Knife/ Acre $9.25 $6.36 $12.17 $9.00 $3.00 ...

  6. Ohio Farm Custom Rates 2010

    https://ohioline.osu.edu/factsheet/AEDE-11-10

    Foot of Blade / Hour $6.00 $9.80 $12.50 Soil Testing / Sample $5.60 $9.65 $13.65 Soil Testing / Acre ... survey responses.)   Low Average High Soil Preparation Stalk Chopper / Acre $7.00 $10.10 $13.05 Moldboard ... $2.00 $6.40 $10.80 Grid Soil Sampling / Acre $5.20 $8.10 $11.05 Power Washing / Hour $10.50 $28.75 ...

  7. Ohio Farm Custom Rates 2014

    https://ohioline.osu.edu/factsheet/AEDE-11-14

    8.00 22.00 Land Leveling / Hour 68.35 25.82 $42.50 $94.15 75.00 25.00 100.00 Sub-soiling / Acre 20.20 ... $10.28 $8.00 $28.55 $17.00 $7.50 $32.50 Soil Testing / Acre $5.55 $1.87 $3.65 $7.40 $5.00 $4.00 $10.00 ... $23.45 17.50 15.00 25.00 Soil Finishing / Acre 14.85 4.13 $10.70 $19.00 14.00 10.00 26.00 Field ...

  8. Ohio Farm Custom Rates 2012

    https://ohioline.osu.edu/factsheet/AEDE-11-12

    $6.80 Soil Testing / Sample $10.00 $11.70 $9.50 Grid Soil Sampling / Acre $8.00 $13.00 $3.00 Machinery ... (farmdoc.illinois.edu/manage/index.asp) Estimating Farm Machinery Costs (extension.iastate.edu/agdm/crops/html/a3-29.html)   Average High ... relationships between the parties or due to the fact that custom providers may see an increased probability of ...

  9. 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. ...

  10. Managing Corn in Response to Severe Storms and Short-Term Weather Stressors

    https://ohioline.osu.edu/factsheet/anr-0151

    plants can occur at temperatures below 46 F. Colder soil temperatures also result in more calendar days ... needed for emergence as early-season emergence is controlled by soil-accumulated growing degree days ... consider planting as soon as soil temperatures are predicted to remain at or above 46 F. Also, consider ...

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