... product portfolio 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, 23 ... -23-0, 15-15-0NK compound fertilizersLVFENG FERTILIZER’s NK product ... , 00-18-18,00-20-29, 00-20-20,NPK water soluble fertilizersLVFENG FERTILIZER’s NPK water soluble product portfolio includes:20-20-20, 19-19-19 ...