This video demonstrates in 33 seconds, an experiment carried out indoors, under controlled environment, a side-by-side, 27-days long dissolution process, of granular SOP and Qrop® KS (prilled potassium nitrate) applied to wet soil. This experiment shows that under same humidity, temperature, light and concentration conditions, Qrop® KS dissolves markedly more quickly than granular SOP. Qrop® KS releases, therefore, both its nutrients, (K+ and nitrate- N), much faster than SOP, hence these nutrients become much faster available to the plant.