fertilizer NPK 12-12-17+2MgO,NPK 10-20-10,NPK 16-20-0,NP 23-21-0 NPK compound fertilizersSince the ... -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 ... , 20-10-10, 13-8-27, 14 ... -18, 30-10-10, 15-15-30, 15-30-15, 10-40-25, 08-08-32, fertilizer NPK 12-12-17+2MgO,NPK 10-20-10,NPK 16-20-0 ...