... quality fertilizer NPK: NPK 30-9-9+1.5MgO+TE, 13-13-21, 11-22-16, 12-12-17+2MgO, 12-12-17 15-15 ... - 1B20310-20-1015-05-2020-8-2016-8-1614-10-185-20-2Test result :NPK 12-12-17 2MgO+TE Appearance: blue granularN:12 ... %, P2O5:12%, Soluble P2O5:8.4%, K2O:17% (KCl base), MgO ...