How much herbicide should be placed in a 100-gallon tank if the application rate is 8 oz and the sprayer is calibrated to apply 15 GPA?

To determine the correct amount of herbicide to place in a 100-gallon tank when the application rate is 8 oz per acre and the sprayer is calibrated to apply 15 gallons per acre (GPA), you need to calculate the total volume of herbicide needed based on the tank size and the application rate.

First, the total gallons in the tank is 100 gallons. At an application rate of 15 GPA, you can figure out how many acres the 100-gallon tank will cover. This is done by dividing the total volume of the tank by the application rate:

100 gallons ÷ 15 GPA = 6.67 acres.

Now, since the herbicide is applied at a rate of 8 oz per acre, you multiply the number of acres covered by the application rate:

6.67 acres × 8 oz/acre = 53.36 oz.

Since you typically round this value for practical purposes, it can be rounded to 53.4 oz. This value corresponds to the amount of herbicide that should be placed in the tank to ensure that the correct application rate is maintained across the targeted area.

Thus, the amount of herbicide to put into the 100-gallon tank is 53