fertilizer NPK 12-12-17+2MgO,NPK 10-20-10,NPK 16-20-0,NP 23-21-0 NPK compound fertilizersSince the ... 24-6-10, 20-10-10, 13-8-27, 14-18-18 - 6S - 1B203, 14-23-14- 5S - 1B203, 10-20-10, 15-05-20, 20-8-20, 16- ... 8-16, 14-10-18, 5-20-25,LVFENG FERTILIZER has been able ... includes:28-28-0, 20-20-0, 20-20-0 + 4S, 14-34-0 + S, 16-20-0 + S, 20-10-0, 23-21+4S, ...