Why calibrate the agricultural knapsack sprayer?

　　In order to spray pesticides accurately and safely, calibrating the agricultural knapsack sprayer is one of the most important things.

　　Every agricultural knapsack sprayer is different, so in order to get the correct application rate, every agricultural knapsack sprayer needs to be calibrated. The goal is to try to figure out the area that a backpack filled with water and pesticides will cover when sprayed. There are many variables, such as sprayer capacity, operator walking speed, pressure, the type of nozzle used, and the height of the nozzle from the target, which all affect the area that a full can of spray will cover. If the agricultural knapsack sprayer is not calibrated correctly, this may result in areas where the chemical is underdose or overdose.

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