Δεν κανω λαθος. Και γω γεωπονος ειμαι αλλα αυτο ειναι ασχετο.
Αν θελεις κανε μια ερευνα στο internet.
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Πχ δες εδω (wikipedia)
Potassium sulfate (K2SO4) (in British English
potassium sulphate, also called
sulphate of potash,
arcanite, or archaically known as
potash of sulfur) is a non-flammable white crystalline
salt which
is soluble in water. The
chemical is commonly used in
fertilizers, providing both
potassium and
sulfur.