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  1. Selecting the Best Nozzle for the Job

    https://ohioline.osu.edu/factsheet/fabe-528

    application rate, as well as variability of spray over the width of the sprayer boom. Nozzles also influence ... allow compliance with label requirements such as application rate (gallons per acre) and spray droplet ... • Sprayer operation parameters —Application rate, spray pressure, travel speed •  Type of chemical sprayed ...

  2. Calibrating Boom Sprayers for Forestry Herbicide Application

    https://ohioline.osu.edu/factsheet/fabe-529

    proper rate is essential to achieving satisfactory weed control. The directions on the container label ... tell a user which application rates give the best results. However, proper application rates will be ... application at prescribed rates requires calibration of the sprayer. If the sprayer is not accurately ...

  3. Crop Tree Management: A Tool to Help You Achieve Your Woodland Goals

    https://ohioline.osu.edu/factsheet/f-50

    management activities on improving the health, vigor, and growth rate of trees that directly satisfy ... a mixed species stand, increasing the growth rate of the economically more valuable trees through ... species, diameter, height, and free-to-grow rating (described in the next paragraph) of the potential crop ...

  4. Soil Acidification: How to Lower Soil pH

    https://ohioline.osu.edu/factsheet/agf-507

    (agronomic and horticultural) with rates necessary to adjust soil pH. Sulfur reaction in the soil is slow, ... recommended rates from pounds per acre to pounds per 1000 ft 2 divide the values in Table 1 by 43.56. To ... adjust the pH of a soil with a measurable volume, use Equation 2 to determine the rate of sulfur needed: ...

  5. 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 ...

  6. 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 ...

  7. 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. ...

  8. 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 ...

  9. 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 ...

  10. 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 ...

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