Final K timelapse

Short educational film comparing a Final K and potassium sulphate solution sprayed on a plant leaf at same concentration , temperature and pressure. At the end of the film, the conclusions are obvious: Final K is still in solution and the solution is always spread in liquid form on the leaf surface whereas potassium sulphate crystallised in the form of small dry salt crusts (white spots) remaining on the leaf surface. Final K is still soluble and continues to penetrate into the leaf and feed the plant while potassium sulphate has formed insoluble and ineffective crystals that accumulate dangerously on the leaves.