Black Swallow Sulfate of Potash (0-0-50)

Solution grade ultra fines 0-0-50

This ultra-fine product is water soluble, so excellent for use in foliar and irrigation systems. Natural Sulfate of Potash (K2SO4) is a natural potash mineral that contains 51 percent soluble potash and 18 percent sulfur. It also contains trace amounts of calcium and magnesium.

Application rate:

Root Drench: ¼ to ½ tsp per gallon of water.

Foliar Spray: Stir 20g into 8 liters of water until it is dissolved completely. This can be applied to the root zone of the soil, or sprayed with a fine sprayer onto the foliage of the plant. Apply once every 3 weeks.