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  1. Ohio Data that Shaped the Tri-State Fertilizer Recommendations

    https://ohioline.osu.edu/factsheet/agf-518

    AA were justified.    Fertilizer Rates and Soil Test Levels at Responsive Sites A critical soil test ... rate applied where a response was observed versus the soil test level. Figure 3 shows this relationship ... phosphorus and potassium levels are very low, crops will respond to high rates of fertilizer (150 pounds per ...

  2. Proper Spinner-Disc Spreader Operation, Terms and Definitions

    https://ohioline.osu.edu/factsheet/fabe-563

    deceleration since it can take a few seconds for the rate controller to adjust and maintain the target ... application rate. Operators should review the operator’s manual to become familiar with the applicator and ... a different material is spread or the rate of application is changed, assess the new spread pattern and make ...

  3. 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. ...

  4. Spraying Recommendations for Soybean Rust

    https://ohioline.osu.edu/factsheet/fabe-526

    coverage: 1) reduce droplet size; and 2) increase carrier volume (application rate). Large droplets don’t ... provide good coverage and result in waste of chemical. Increasing the application rate may be equally ... inches at the time of spraying. The travel speed was 3 mph, and the application rate was 20 gpa. Target ...

  5. 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 ...

  6. 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 ...

  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. 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 ...

  9. 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 ...

  10. 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: ...

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