FieldScience ing. 7. Set pressure to be used while spray-
8. Collect the output from one nozzle for the same amount of time it took to travel the course.
9. Each ounce collected equals a gallon per application rate. (Example: 52 ounces collected equals 52 gallon per acre applica- tion rate)
TANK MIXING (FIGURE 4) 1. Determine the recommended appli- cation rate from the product label. This value can be in fluid or dry ounces. 2. Enter the calibration rate measured
from the sprayer. 3. Calculate the product per gallon ratio
according to the worksheet. 4. Calculate the amount of product re-
quired for each tank or partial tank. Before adding product, you should fill the tank 1/2 full of water and begin agitation. After product's been added, bring tank up to de- sired level/volume. For planning purposes, it may be useful to calculate the following: 5. Estimate the area to be treated. This
value will be slightly larger than actual green or fairway size due to overspray of ir- regular areas.
ments. You can use this figure to determine how many spray tanks the application will require.
6. Estimate the total water require-
7. Estimate the product requirements and check if supplies are adequate before mixing.
TIPS: Verify the markings on your spray tank for accuracy and use a dipstick or flow meter to measure partial tanks. Do
22 SportsTurf | September 2012
www.sportsturfonline.com
FIGURE 4
FIGURE 5
