SPRAYER CALIBRATION TABLE FOR BAND-SPRAYING OF HERBICIDES:


 This table will help determine sprayer output in gallons per acre on a
banded-spray basis.

 TO USE: have sprayer equipped with proper nozzle tips and with tips,
 tractor speed and spraying pressure adjusted as to be operated in the
 field.
 Then, drive unit in field and collect spray liquid discharged
 by one or more nozzle tips over a distance of 300 feet. Several tips
 collected separately and averaged are better than one.
 Measure the liquid sprayed BY ONE TIP IN OUNCES. Locate this
 figure in left column of table and read directly the gallons per acre
 rate under the band-width column which applies to the unit. Examples
 are below table.


Volume of spray
delivered by
1 tip in 300 ft.

P pt. or 8 oz.
 10
 12
 14
1 pt. or 16 oz.
 18
 20
 22
 24
 26
 28
 30
1 qt. or 32 oz.


GALLONS PER ACRE APPLIED AT BAND WIDTH OF:


9"1


 12.1
 15.1
....-18. ......
 21.2
 24.2
 27.2
 30.2
 33.3
 36.3
 39.3
 --


12"


 --
 11.3
 13.6
 15.9
....18.2
 20.5
 22.7
 25.0
 27.2
 29.5
 31.8
 34.0
 36.3


18"


 10.9
 12.7
 14.5
 16.3
 18.2
...-- .0. .....
 21.8
 23.6
 2,5.4
 27.2
 29.0


 10.6
 12.1
 13.6
 15.1
 16.6
 18.2
......a197...
 21.2
 22.7
 24.2


NOTE: If two nozzle tips are used per row the value for one tip will have to be
 doubled to give the correct gallons per acre total. If two tips are used
 it would be desirable to calibrate unit to discharge in the area above the
 dotted line in the table.

Example: 1 nozzle per row: a sprayer is set-up with one tip spraying 12 inch
 bands on the row. When run down the field at operating speed and pressure a :
 nozzle tip discharges 26 ounces of solution in 300 feet. The gallons per
 acre rate is found in the 12" column opposite 26 ounces: 29.5 gpa.

Example: 2 nozzles per row: a sprayer is set-up with 2 nozzle tips per row and
 covers a 15" band. When run down the field at operating pressure and speed
 ONE (1) nozzle tip discharges 16 ounces in 300 feet. As indicated in the
 15" band column opposite 16 ounces the nozzle is spraying at 14.5 gallons
 per acre. However, since two tips are used to spray this area the actual
 rate is TWICE 14.5 or 29 gallons per acre.