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  1. Proper Calibration and Operation of Backpack and Hand Can Sprayers

    https://ohioline.osu.edu/factsheet/fabe-531

    walking speed is essential to keeping the application rate relatively uniform throughout the operation. ... A higher travel speed will result in a lower application rate.       Maintaining a uniform spraying ... pressure is also essential both for keeping the application rate and the droplet size uniform during the ...

  2. Using °Brix as an Indicator of Vegetable Quality: Linking Measured Values to Crop Management

    https://ohioline.osu.edu/factsheet/HYG-1651

    set the rate of sugar production, but temperature may have a stronger influence on tomato fruit ...

  3. Boom Sprayer Calibration

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

    application rate in gallons per acre, or GPA. For example: If you catch an average of 15 ounces from a set of ... nozzles, the actual application rate of the sprayer is equal to 15 GPA. With this method, make sure that ... output rate, check for clogs and clean the tip, or replace the nozzle. Repeat steps 5 and 6 until the ...

  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. 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 ...

  6. Beech Bark Disease

    https://ohioline.osu.edu/factsheet/plpath-tree-09

    reach densities of 270 scales/cm 2. Trees generally show no greater rate of mortality than before beech ... reach mortality levels of 50 percent within 10 years, with higher rates seen in some areas (Figure 7). ... a lower rate. Beech are now a lower percentage of the overstory, as large trees die first, but thickets of ...

  7. Guidelines for Applying Liquid Animal Manure to Cropland with Subsurface and Surface Drains

    https://ohioline.osu.edu/factsheet/ANR-21

    that it not be applied at rates that exceed the soil infiltration rate, nor exceed the amount needed to ... may begin to move through the soil profile (refer to Table 1). Manure application rates may need to be ... one factor determining the maximum volume that should be applied.  Application rates should not ...

  8. Correcting Irregular Spread Patterns

    https://ohioline.osu.edu/factsheet/fabe-562

    achieve a uniform application rate.   Essential Aspects for Accurate Spreading  All three of these ... line). After collecting and weighing the samples for each pan, the associated application rates can be ... calculated using the formula below: Sample Application Rate Calculation: If 4 grams of material are collected ...

  9. 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 ...

  10. 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 ...

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