1 / 17

Calibrating Spray Equipment

Calibrating Spray Equipment. Page 69. Why Calibrate. Better Pest Control Environmental and human safety Effective use of time Inadequate control = more treatments Cost/Benefit ratio Lack of calibration = improper mixing 1 gallon of Tordon per 100 gallons of water Will revisit.

andrew
Télécharger la présentation

Calibrating Spray Equipment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Calibrating Spray Equipment Page 69

  2. Why Calibrate • Better Pest Control • Environmental and human safety • Effective use of time • Inadequate control = more treatments • Cost/Benefit ratio • Lack of calibration = improper mixing • 1 gallon of Tordon per 100 gallons of water • Will revisit

  3. What’s An Application Rate • Gallons of liquid applied per acre • GPA • Water and pesticide mixed • a.k.a. • Sprayer volume • Sprayer output • Need to know GPA for mixing

  4. Variables Affecting GPA • Ground Speed (MPH) • Speed up = less liquid = lower application rate • Slow down = more liquid = increased application rate Consistency

  5. Variables Affecting GPA • Nozzle Flow Rate • GPM • Depends on Orifice size = 0.50 GPM = 0.20 GPM

  6. Variables Affecting GPA • Pressure • 4x pressure to double GPA • Increased pressure = smaller droplets Drift For Minor Adjustments Only

  7. Variables Affecting GPA • Spray Width or Spacing • 100% swath overlapping doubles output

  8. Variables Affecting GPA • Nozzle Wear • Worn tips = • Over application • Erratic patterns

  9. Figuring Out GPA • Label requirements More GPA = More Coverage

  10. Figuring Out GPA • Label requirements • Determine Your Field Speed • Know it to maintain it! 200 Feet in 27 seconds 20027 X 0.682 = 5 MPH Buy a speed sensor

  11. Figuring Out GPA • Label requirements • Determine Your Field Speed • Collect from each nozzle • - Find GPM 64 ounces Ounces .128 oz. Per gallon = 0.5 Gallons = Gallons

  12. Figuring Out GPA • Label requirements • Determine Your Field Speed • Collect from each nozzle • Want output of one nozzle • Simply plug in the numbers

  13. GPA is given or required!Need GPM for each nozzle! Rearrange formula

  14. How Much To Add To The Tank • Acres that can be sprayed with a given volume in the tank • GPA • Labeled Rate

  15. How Much To Add To The Tank • Acres that can be sprayed with a given volume in the tank VolumeGPA = Acres 500 gal.25 GPA = 20 Acres 20 Acres x 25 GPA = 500 gallons

  16. How Much To Add To The Tank Acres x labeled rate per acre • Acres that can be sprayed with a given volume in the tank • GPA • Labeled Rate Gallons? 20 acres x 3 pints/acre = 60 pints 60 pints  8 pints/gal. = 7.5 gal.

  17. 1 gallon of Tordon per 100 gallons of water • - Sprayer applied 50 GPA • - Could spray 2 acres with 100 gallons • 100 gallons  50 GPA = 2 acres • - Rate was 1 quart per acre • - Only needed to add 2 quarts per 100 gallons • 2 acres x 1 quart per acre = 2 quarts per 100 gallons • - Over applied by 2x ($40 per acre)

More Related