... 13-13-21, 11-22-16, 12-12-17+2MgO,15-15-15 20-10-10 12-12-17 NPK compound fertilizersSince the ... 13-21, 11-22-16, 12-12-17+2MgO, 27-6-6, 17-17-17, 16-16-16, 15-15-15, 12-6-22, 12-1-4, 5-5 ... -5, 24-6-10, 20- ... 20-10, 15-05-20, 20-8-20, 16-8-16, 14-10-18, 5-20-25,LVFENG FERTILIZER has ... .5MgO+TE, 13-13-21, 11-22-16, 12-12-17+2MgO,15-15-15 20-10-10 ...