Polypropylene Bed Adhesion
If you are using PLA, 200 for the extruder sticks the best for me.  The other issue with adhesion is the greater the difference between the extruder temperature and the bed the poorer adhesion. There are other things can help with this.  Using a higher bed temperature for the first layer can help.  A slower extrusion speed allows the extrusion to cool more before getting as long of a length to for the contraction force; thus improving adhesion.