1, potassium fertilizer has an oven to dry itself, 100 degrees is no problem. If the humidity is not high there, you can spread out the fan to dry.

2. Potassium fertilizer does not volatilize in the sun. The main varieties of potassium fertilizer are potassium sulfate, potassium dihydrogen phosphate, potassium chloride, potassium magnesium salt and so on.

3, non-volatile, the composition is relatively stable, so it does not volatilize after sun exposure, but if it rains or gets wet, it will dissolve after a long time, resulting in fertilizer loss.