Potash contains 56.6 g of potassium per 100.0 g. A one acre plot of corn requires 2.1334×104 g of potassium per day. A particular fertilizer is 19.2 % potash by mass.
(1 acre = 4047 m^2, density of potassium = 0.862 g/cm^3)
What mass of the fertilizer would supply the minimum potassium requirement for the field for a day?