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  1. Growing Degree Days as a Method of Rating the Maturity of Corn Hybrids

    https://ohioline.osu.edu/factsheet/agf-101

    growing season for corn across Ohio, producers need a method of accurately rating the maturity of their ... seed corn companies rate hybrid maturity on the basis of “Growing Degree Days” (GDD) or “Heat Units.” ... company ratings are made using the (86,50) system, because this is the basis for published weather data. ...

  2. Manure and Compost: Nitrogen Availability in Organic Production

    https://ohioline.osu.edu/factsheet/anr-34

    Grain Research Site Nitrogen Source Analysis total N Moisture Total N  lbs/ton Typical rate  per acre ... Typically a factor of 25 percent loss is used. Application Rate Knowing the amount of material applied per ... laboratory analysis is needed to calculate the target application rate. Calibration of spreaders improves ...

  3. Soil Acidity and Liming for Agronomic Production

    https://ohioline.osu.edu/factsheet/AGF-505-07

    acidity produced by application of various nitrogen fertilizers (nitrogen rate of 100 lb N/A) (adapted ... from Havlin et al., 1999). Fertilizer source Fertilizer source application rate (lb/A Equivalent lbs of ... soils (clay) typically require higher rates of lime than coarse textured soils (sands). Soils that have ...

  4. Scoring Cows Can Improve Profits

    https://ohioline.osu.edu/factsheet/anr-54

    condition can surface in several ways:  Prolonged post-partum anestrus  Reduced conception rates requiring ... pregnancy rates of 60 percent and lower.  Moderate: The ideal range for BCS is 5 through 7. Cows in this ... range are moderate in body fatness and typically have pregnancy rates over 70 percent.  Fat: BCS scores ...

  5. Crop Nutrition Apps

    https://ohioline.osu.edu/factsheet/fabe-55202

    Calculate nutrition products and application rates based on lab analysis and info sheets. View fact sheets ... herbicides, plant population, seed rate, and seed blending to ensure optimal yields. Cost: Free Account ... available to crops that follow forage legumes in the rotation. Cost: Free Account needed? No Corn N Rate ...

  6. Keeping Sun Safe

    https://ohioline.osu.edu/factsheet/hsc-7

    a 30 to 50 SPF (Sun Protection Factor) rating for best protection. Sunscreens contain one or more ... such as cotton T-shirts provide little protection (SPF rating of 4.8, if white). Choose to wear middle ...

  7. Using Ice to Protect Outdoor-Growing Plants against Frosts and Freezes

    https://ohioline.osu.edu/factsheet/hyg-1262

    applied with sprinklers at a rate of 0.08 inches per hour (36 gal. per min. per acre) releases 2.6 million ... BTU per acre per hour 1. Increasing the application rate to 0.15 inches per hour (68 gal. per min. per ... of water. If the area to be protected is one acre in size, and the desired rate of delivery is 0.125 ...

  8. Gray Water Recycling in Ohio

    https://ohioline.osu.edu/factsheet/aex-gw1

    loading rate to determine the number and length of the leaching trenches. This is a common system in ... a soil assessment and an estimation of the wastewater loading rate. Outside the building, gray water can ...

  9. Leaf Blotch Diseases of Wheat—Septoria tritici Blotch, Stagonospora nodorum Blotch and Tan Spot

    https://ohioline.osu.edu/factsheet/plpath-cer-07

    high rates of nitrogen will make the field prone to damage by Stagonospora blotch. Avoid high rates of ... the flag leaf and the leaf below the flag leaf. A single full-rate application at flag leaf emergence ...

  10. Northern Corn Leaf Blight

    https://ohioline.osu.edu/factsheet/plpath-cer-10

    races of the fungus and reduces the rate of disease development by reducing the number and size of the ... Read labels for rates and follow application directions which vary with each fungicide product. Ag ...

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