Polyphoska 15 NPK (MgS) 15-15-15- (2-12) - a fertilizer with a ratio of NPK 1: 1: 1 and an increased content of available sulfur (S), which makes the fertilizer one of the most effective for post-sowing application for sowing winter
wheat and winter
rape. Polifoska® 15 contains nitrogen in two forms - ammonium and urea.