Potassium sulfate (K2SO4.), Dnepropetrovsk region.

Potassium sulfate is a concentrated potassium fertilizer, which contains 50% potassium, 18% sulfur, 3% magnesium and 0.4% calcium. It looks like a white, sometimes with a grayish tint, crystalline powder. Potassium sulfate does not contain chlorine, and its main properties are its good solubility in water and the fact that it does not stick when stored for a long time.
How to use potassium sulfate?
The use of potassium sulfate with nitrogen and phosphate fertilizersfertilizers increases the positive effect on productivity, but simultaneous use with urea and chalk is not recommended.
Wide use of potassium sulfate as a fertilizer in agriculture, because he:
increases the content of vitamins andsugar in fruits;
has a positive effect on the volume and quality of the harvest;(//tractor-service.com)
promotes successful wintering of fruit and berry trees and shrubs;
can be used on various soils (turf-podzolic, peat, chestnut, gray earth, acidic).
You can use potassium sulfate in open and closed (greenhouse) soil, as well as for indoor plants.

Source: http://womanadvice.ru/udobrenie-sulfat-kaliya#ixzz35qVGxDEy
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