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  1. Spinner-Disc Spreader Set Up and Calibration

    https://ohioline.osu.edu/factsheet/fabe-561

    application rate such as with variable-rate application (VRA). Figure 1 shows that set-up, maintenance, and ... feed gate height by product categories (e.g. fertilizer or lime) based on the desired application rate ... (lb/ac). Rate controllers required calibration of the metering mechanism to insure accurate application. ...

  2. Physical Properties of Granular Fertilizers and Impact on Spreading

    https://ohioline.osu.edu/factsheet/fabe-5501

    Today, accurate placement and rate (or rates in the case of variable-rate application—VRA) during field ... nutrient management. The 4Rs of Nutrient Stewardship include Right Source, Right Rate, Right Time and Right ... fertilizers thereby influencing rate and placement. Fertilizer source is also important because nutrient ...

  3. Effectiveness of Turbodrop® and Turbo Teejet® Nozzles in Drift Reduction

    https://ohioline.osu.edu/factsheet/fabe-524

    Flow  Rate (gpm)  (at 40 psi) Test Pressure  (psi) Standard Flat-Fan (XR)   XR11002 0.2 40; 60   XR11004 ... The variation in droplet size across the pattern was greater with 0.2 gpm nominal flow rate nozzles ... (at both 40 and 60 psi) than nozzles with a nominal flow rate of 0.4 gpm. VMDs from TurboDrop nozzles ...

  4. Cool-Season Turfgrasses for Sports Fields and Recreational Areas

    https://ohioline.osu.edu/factsheet/str-1

    Germination rates are slow to moderate, and usually range from seven to 21 days, depending on conditions. Slow ... establishment rates mean that weed competition, notably crabgrass (Digitaria spp.), can inhibit KBG development, ... Table 2: Timing and Seed Rates Time between Seed and Play Grass % Weight Rate lbs/M 9 Months KBG 100 1-3 ...

  5. How to Hire an Arborist

    https://ohioline.osu.edu/factsheet/hyg-1032

    payment?       If I would like more done, what is your hourly rate? Ways to save on the cost of tree care: ...

  6. Interpreting Manure Sample Test Results

    https://ohioline.osu.edu/factsheet/anr-55

    phosphorus (P 2 O 5) per 1,000 gallons of manure to determine the application rate: Rate = 9,375 gallons/acre ... application rate. We calculated the manure contains 9.5 pounds of total N per 1,000 gallons of manure. ... Multiply the amount of total N in the manure by the application rate to determine the amount of total ...

  7. Estimated Return-to-Seed of Variable vs. Uniform Corn Seeding Rates

    https://ohioline.osu.edu/factsheet/agf-520

    seeding rate is important for efficient production. The “optimum” corn seeding rate—the one that maximizes ... agronomic production and breeding, it is important to know how practices such as variable rate seeding with ... modern hybrids may affect profitability. While adoption of variable rate technology is increasing, there ...

  8. Seeding Recommendations Following Pipeline Construction

    https://ohioline.osu.edu/factsheet/anr-32

    Seeding Rates Table 2 below is from the Ohio State University Extension Ohio Agronomy Guide and provides ... 2 Lbs. Seed/A Proportional Seeding Rates for Mixtures Pounds/Acre Perennial Legumes       3/4 1/2 1/3 1/4 ... Understanding Seeding Rates, Recommended Planting Rates and Pure Live Seed, Technical Note. Business and Land ...

  9. 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. ...

  10. Nutrients Removed with Harvested Corn, Soybean, and Wheat Grain in Ohio

    https://ohioline.osu.edu/factsheet/anr-74

    rates in corn, soybean, and wheat in Ohio. Summary of Findings Grain nutrient concentrations were ... nutrient concentrations of P and K have decreased, indicating lower P and K removal rates per bushel of ... grain. Decreased nutrient removal rates per bushel of grain indicate crops are becoming more efficient. ...

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