Mixing Dry Chemicals
Use the following calculators to find how much dry chemical to mix with water, depending on your water requirements. Learn more about the units used on this page. For more information on calculating chemigation injection rates click here
Total Chemical Application Weight
This calculator finds how much dry chemical to mix with water.
Minimum Water Volume for Mixing Dry Chemicals
This calculates the minimum amount of water that must be mixed with dry chemicals in order to get the chemicals dissolved into solution. Adding more water than the minimum is necessary.
The Equations
To calculate the weight of dry chemical needed use this formula.
Where:
= The mass of the chemical to be applied in pounds (lbs).
= The area in acres (acres).
= Rate to apply by pounds per acre (lbs/acre)
= Percent concentration in the mix.
The equation to determine the minimum amount of water 
that must be added to completely disolve the dry chemicals is:
Where:
= Weight of the chemical in the tank in pounds.
= Solubility of the chemical in pounds per gallon.